Develop Bugs

Chronic Mobile Data Issues with MK2 Baseband regardless of ROM

I never had any issues with my old M919, which is still sitting in a drawer awaiting a new display assembly I cannot afford. It was running CM 10 perfectly and no issues with HSPA or LTE. I was suffering for a while with an HTC Espresso which I could not S-OFF due to HBOOT being incompatible with AlphaRev. Anyway, I ended up with my old roomate's M919 about a week ago and have had nothing but issues getting mobile data to work properly.
It already had the MK2 Baseband installed-though I did not bother to check if it worked on the stock 4.3 ROM he had already installed. Nor did he ever say anything about issues. Anyway, I tried almost all of the Infamous ROM's(and all the kernels available with AROMA) as well as Cyanogenmod 10.2. All ROM's have major issues maintaining mobile data connection regardless of network mode or which cell I am on. Wi-Fi works flawlessly however. Also, to note, my fiance is running MK2 on her stock M919 so I have had a reference of which type of cell we are on and its signal strength.
So, finally I flashed the MK2 modem manually and rebooted into CM 10.2. That just made it completely unable to connect to any type of network although Wi-Fi worked just fine. So, now I am attempting to reinstall Infamous S4 from a full wipe to see if that will work, but after that I am out of ideas.

fallofredmond said:
So, finally I flashed the MK2 modem manually and rebooted into CM 10.2. That just made it completely unable to connect to any type of network although Wi-Fi worked just fine. So, now I am attempting to reinstall Infamous S4 from a full wipe to see if that will work, but after that I am out of ideas.
Click to expand...
Click to collapse
Have you checked your APN settings (versus your fiancés) to make sure they are correct? And to be completely fair, you could post in one of the many CM threads like this one here, you will target a much larger and focused support base. :good:

The whole mdl / mk2 radios are a mess. There are 2 radios, one for lte and one for hspa and below. The LTE one stays mdl and only the other is upgraded because of knox installation that some people are worried about (their warranty).
I believe what you may want to do is install the ota official for 4.3 to get all the correct radios and just forget about the warranty. There have been ways to reset the knox counter later down the road if you want to claim your warranty but I do not recall any guides.
I've started a thread here too for some clarifications on this subject so check that for answers too

POQbum said:
The whole mdl / mk2 radios are a mess. There are 2 radios, one for lte and one for hspa and below. The LTE one stays mdl and only the other is upgraded because of knox installation that some people are worried about (their warranty).
I believe what you may want to do is install the ota official for 4.3 to get all the correct radios and just forget about the warranty. There have been ways to reset the knox counter later down the road if you want to claim your warranty but I do not recall any guides.
I've started a thread here too for some clarifications on this subject so check that for answers too
Click to expand...
Click to collapse
First, there is currently NO METHOD to reset your KNOX counter, please do not give wrong information (which is why we have THIS thread).
Second, a link to this thread of yours would be useful, if you only linked it.
Third, "correct" radios are already freely available on XDA without taking the 4.3 OTA. He may have flashed an improper or incompatible modem.bin file, which is why his problem is occurring.

xdapowerapps said:
First, there is currently NO METHOD to reset your KNOX counter, please do not give wrong information (which is why we have THIS thread).
Second, a link to this thread of yours would be useful, if you only linked it.
Third, "correct" radios are already freely available on XDA without taking the 4.3 OTA. He may have flashed an improper or incompatible modem.bin file, which is why his problem is occurring.
Click to expand...
Click to collapse
Correct radio's without knox means that there is still an old LTE radio which creates and has been creating lots of problems for people.
I don't care about a flash counter anyway, and sorry did not mean to spread mis-information.
My thread is here: http://forum.xda-developers.com/showthread.php?t=2609962
the only answer I was given was one that told me to do the exact thing I didn't want to do, which is to flash the GSM MK2, but leave the LTE MDL.
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I'm looking to see if anyone can help me find a way to flash the OTA update which contains KNOX (which includes the MK2 LTE) and also the MK2 GSM radio's.
The only downside I see to flashing KNOX (and the MK2 LTE) is this flash counter. I believe I heard somewhere you may not be able to flash new kernels, but I'm not sure if that is correct or not. If it is correct and I can not flash new kernels, I also do not care and don't know why so many people are okay with LTE radio's that go out all the time vs a flash counter+stock kernel

POQbum said:
Correct radio's without knox means that there is still an old LTE radio which creates and has been creating lots of problems for people.
I don't care about a flash counter anyway, and sorry did not mean to spread mis-information.
My thread is here: http://forum.xda-developers.com/showthread.php?t=2609962
the only answer I was given was one that told me to do the exact thing I didn't want to do, which is to flash the GSM MK2, but leave the LTE MDL.
-------------
I'm looking to see if anyone can help me find a way to flash the OTA update which contains KNOX (which includes the MK2 LTE) and also the MK2 GSM radio's.
The only downside I see to flashing KNOX (and the MK2 LTE) is this flash counter. I believe I heard somewhere you may not be able to flash new kernels, but I'm not sure if that is correct or not. If it is correct and I can not flash new kernels, I also do not care and don't know why so many people are okay with LTE radio's that go out all the time vs a flash counter+stock kernel
Click to expand...
Click to collapse
It's okay, we are all learning about information . The modem.bin file you flash in Odin replaces your old one (which is why the name of the file HAS to be modem.bin, otherwise nothing will get replaced).
Why do you WANT KNOX? KNOX is part of the bootloader for 4.3+. The guide you linked is how almost everyone has updated their modems on 4.2.2 bootloader.
If you are on 4.2.2 bootloader, follow these steps:
1) Download the 4.3 modem.
2) Place phone in download mode (Vol Down + Home + Power)
3) Open Odin and plug into computer.
4) Select "Phone" and then choose the modem.bin file.
5) Uncheck "Auto-reboot"
6) Press Start and wait 30 seconds after it says "Passed."
7) Restart phone.
I can almost guarantee you that this will work because this has been proven to work hundreds of thousands of times. I am on 4.2.2 MDL LTE (since I am already on 4.2.2) and I just flashed the 4.3 MK2 modem. I have no problems at all with data now.
EDIT: I am also using a 4.3 MK2 modem on 4.2.2 and have no issues.

xdapowerapps said:
It's okay, we are all learning about information . The modem.bin file you flash in Odin replaces your old one (which is why the name of the file HAS to be modem.bin, otherwise nothing will get replaced).
Why do you WANT KNOX? KNOX is part of the bootloader for 4.3+. The guide you linked is how almost everyone has updated their modems on 4.2.2 bootloader.
If you are on 4.2.2 bootloader, follow these steps:
1) Download the 4.3 modem.
2) Place phone in download mode (Vol Down + Home + Power)
3) Open Odin and plug into computer.
4) Select "Phone" and then choose the modem.bin file.
5) Uncheck "Auto-reboot"
6) Press Start and wait 30 seconds after it says "Passed."
7) Restart phone.
I can almost guarantee you that this will work because this has been proven to work hundreds of thousands of times. I am on 4.2.2 MDL LTE (since I am already on 4.2.2) and I just flashed the 4.3 MK2 modem. I have no problems at all with data now.
Click to expand...
Click to collapse
I want knox because I want the LTE radio which is tied to knox. I don't care if I have knox or not. My phone is not under warranty anyone, and if that is the only thing that is scaring people away then I have no reason to worry about knox.
I may try out this scenario but right now my phone reboots all the time and I've heard people having issues with LTE on 4.3 ROM's so I am not looking forward to spending hours configuring my phone only to wipe it all again, but it may work out better than I am thinking so I will give it a shot.
For reference, if there is a flashable full 4.3 ROM/.tar (with knox and the MK2 LTE included) out there and you could link me, I would appreciate it. I can't seem to find any which is odd.
Cheers

POQbum said:
I want knox because I want the LTE radio which is tied to knox. I don't care if I have knox or not. My phone is not under warrantly anyone, and if that is the only thing that is scaring people away then I have no reason to worry about knox.
I may try out this scenario but right now my phone reboots all the time and I've heard people having issues with LTE on 4.3 ROM's so I am not looking forward to spending hours configuring my phone only to wipe it all again, but it may work out better than I am thinking so I will give it a shot.
For reference, if there is a flashable full 4.3 ROM/.tar out there and you could link me, I would appreciate it. I can't seem to find any which is odd.
Cheers
Click to expand...
Click to collapse
There are 4.3 flashable ROMs out there but they will not give you what you want. You will HAVE to Odin flash a stock file to get what you're after.
Here are some links for the stock MK2 with KNOX included (choose whichever one is faster). :good:
http://www.sammobile.com/firmwares/3/?download=22280
http://samsung-updates.com/details/16429/Galaxy_S_4_T-Mobile/SGH-M919/TMB/M919UVUEMK2.html
http://rapidgator.net/file/c98247edd8cd1cee88383ceef83a8c7f
Cheers mate!

xdapowerapps said:
There are 4.3 flashable ROMs out there but they will not give you what you want. You will HAVE to Odin flash a stock file to get what you're after.
Here are some links for the stock MK2 with KNOX included (choose whichever one is faster). :good:
http://www.sammobile.com/firmwares/3/?download=22280
http://samsung-updates.com/details/16429/Galaxy_S_4_T-Mobile/SGH-M919/TMB/M919UVUEMK2.html
http://rapidgator.net/file/c98247edd8cd1cee88383ceef83a8c7f
Cheers mate!
Click to expand...
Click to collapse
Okay so I load this file: http://samsung-updates.com/details/16429/Galaxy_S_4_T-Mobile/SGH-M919/TMB/M919UVUEMK2.html
How do I flash it through ODIN? Do you know what steps I need to do? Should I wipe data/cache first?
I've flashed a few things through ODIN because and am familiar with it

POQbum said:
Okay so I load this file: http://samsung-updates.com/details/16429/Galaxy_S_4_T-Mobile/SGH-M919/TMB/M919UVUEMK2.html
How do I flash it through ODIN? Do you know what steps I need to do? Should I wipe data/cache first?
I've flashed a few things through ODIN because and am familiar with it
Click to expand...
Click to collapse
Open up odin, select PDA, choose the tar file you just downloaded.
Then put your phone in download mode (vol down + home + power), then connect it to your computer.
Once odin detects your phone, press start. It will take 15 to 20 mins and it will restart by itself.
After it reboots and for some reason you get stuck on the tmobile screen for more than 10 mins, go into recovery and wipe/data factory reset and wipe cache. Then your phone will boot up fine. Enjoy ^_^
Sent from my SGH-M919 using XDA Premium 4 mobile app

xdapowerapps said:
Have you checked your APN settings (versus your fiancés) to make sure they are correct? And to be completely fair, you could post in one of the many CM threads like this one here, you will target a much larger and focused support base. :good:
Click to expand...
Click to collapse
Both M919's are set to fast.t-mobile.com, although I haven't checked to see if the settings all match. I will definitely check that later.
As for threads here and elsewhere to solve the problem, I have tried pretty much everything I have seen. Most of what I have been reading on both CM and custom TW ROM threads is "me too" or "I don't have that problem".
POQbum said:
The whole mdl / mk2 radios are a mess. There are 2 radios, one for lte and one for hspa and below. The LTE one stays mdl and only the other is upgraded because of knox installation that some people are worried about (their warranty).
I believe what you may want to do is install the ota official for 4.3 to get all the correct radios and just forget about the warranty. There have been ways to reset the knox counter later down the road if you want to claim your warranty but I do not recall any guides.
I've started a thread here too for some clarifications on this subject so check that for answers too
Click to expand...
Click to collapse
Ok, now I just got thrown for a loop. Please use Heimdall to print your PIT and post it. On my PIT there appears to be only one partition with a radio... not 2.

xdapowerapps said:
There are 4.3 flashable ROMs out there but they will not give you what you want. You will HAVE to Odin flash a stock file to get what you're after.
Here are some links for the stock MK2 with KNOX included (choose whichever one is faster). :good:
Cheers mate!
Click to expand...
Click to collapse
I'm not waiting 4-8 hours to download a ROM. Yes, I understand those estimates are ads to try to get you to buy "premium membership" but still, do you have a legit mirror?

Galaxy S4 M919 need some advice/help.

Hey guys! This might sound noobish, but i really never flashed, rooted, or anything on a droid/etc before. So atm I bought a galaxy s4 for my dad, and tried unlocking this stupid phone, but unlocking thru the dialer didnt work(couldnt even get *#27663368378# to work, when using *#0011#, still couldnt do anything.) All i know about it, is that it recognizes the European sim card, but the simple mobile(usa) sim card doesnt recognize, can't make calls, etc, as when you try to make a call it says "cant register to network" or w.e. So i was wondering what should I do? Do i need to flash the modem? rom? Root it? I want it to be able to work in global, in usa and euro.
On another note, I got my other phone that's on ver 4.2.2. Should i try upgrading my modem/baseband from mdl to nb4? Anything new with the new modem or anything i should update? Since i cant update OTA anymore on my 4.2.2. lol. Any suggestions would be awesome Tell me from your point of you, is it better to stay at 4.2.2? or just get the 4.4.2, and should i root my phone? Any vernabilities/security problems if done?
I found this: http://forum.xda-developers.com/showthread.php?t=2780006
Samsung Galaxy S4 M919 T-mobile
ROM: M919UVUFNB4
4.4.2 kitkat

Den Den said:
Hey guys! This might sound noobish, but i really never flashed, rooted, or anything on a droid/etc before. So atm I bought a galaxy s4 for my dad, and tried unlocking this stupid phone, but unlocking thru the dialer didnt work(couldnt even get *#27663368378# to work, when using *#0011#, still couldnt do anything.) All i know about it, is that it recognizes the European sim card, but the simple mobile(usa) sim card doesnt recognize, can't make calls, etc, as when you try to make a call it says "cant register to network" or w.e. So i was wondering what should I do? Do i need to flash the modem? rom? Root it? I want it to be able to work in global, in usa and euro.
On another note, I got my other phone that's on ver 4.2.2. Should i try upgrading my modem/baseband from mdl to nb4? Anything new with the new modem or anything i should update? Since i cant update OTA anymore on my 4.2.2. lol. Any suggestions would be awesome Tell me from your point of you, is it better to stay at 4.2.2? or just get the 4.4.2, and should i root my phone? Any vernabilities/security problems if done?
I found this: http://forum.xda-developers.com/showthread.php?t=2780006
Samsung Galaxy S4 M919 T-mobile
ROM: M919UVUFNB4
4.4.2 kitkat
Click to expand...
Click to collapse
To unlock your dad's phone the guide you linked to should do what you need done.
As far as your phone still on MDL, you should be able to use the old method through the service menu to unlock if that's what you wanted to do. You can update your modem/baseband if you desire, although if you're staying on stock 4.2.2 TouchWiz there is really no need to. It's only when you flash ROMs based on 4.3 and above that you run into issues using the MDL modem/baseband.

To add to lordcheeto's post, there's a difference between MDL bootloader and the MDL modem. When the S4 was released with Android 4.2 it had an unlocked bootloader (MDL), but with Android 4.3 and 4.4 Samsung included new security software called Knox. Knox doesn't prevent rooting, but if you flash a custom recovery such as CWMR, TWRP, or Philz Touch then a security flag will be irreversibly tripped which voids your warranty. Because this Knox software is tied into the bootloader, developers found a way around it by extracting the modems from 4.3 (MK2) and 4.4 (NB4) firmwares which allows us to keep our MDL bootloader and still use 4.2, 4.3, and 4.4 roms. The advantages are that we keep our warranty and we're able to use any 4.2+ rom. We can downgrade and upgrade easily while Knox phones can't.

lordcheeto03 said:
To unlock your dad's phone the guide you linked to should do what you need done.
As far as your phone still on MDL, you should be able to use the old method through the service menu to unlock if that's what you wanted to do. You can update your modem/baseband if you desire, although if you're staying on stock 4.2.2 TouchWiz there is really no need to. It's only when you flash ROMs based on 4.3 and above that you run into issues using the MDL modem/baseband.
Click to expand...
Click to collapse
Should i keep the 4.4.2 kitkat thats not working with my usa sim card atm? Or should i flash it to 4.2.2. ADL? If having 4.2.2 is better doing that guide i put link to above, then give me a good tut on doing it, need to do it today xD THanks in Advance!

HampTheToker said:
To add to lordcheeto's post, there's a difference between MDL bootloader and the MDL modem. When the S4 was released with Android 4.2 it had an unlocked bootloader (MDL), but with Android 4.3 and 4.4 Samsung included new security software called Knox. Knox doesn't prevent rooting, but if you flash a custom recovery such as CWMR, TWRP, or Philz Touch then a security flag will be irreversibly tripped which voids your warranty. Because this Knox software is tied into the bootloader, developers found a way around it by extracting the modems from 4.3 (MK2) and 4.4 (NB4) firmwares which allows us to keep our MDL bootloader and still use 4.2, 4.3, and 4.4 roms. The advantages are that we keep our warranty and we're able to use any 4.2+ rom. We can downgrade and upgrade easily while Knox phones can't.
Click to expand...
Click to collapse
What do you suggest? Should i downgrade to 4.2.2.? Or just run with the guide i posted above keeping the 4.4.2. NB4, I just need it to run so i can call, use date, and go to euro and use in usa ofc. Ive been using my 4.2.2. pretty good so far, been almost a year and had no problems with it, should i worry about updating my modem on my 4.2.2.? or anything important, etc? If i should go with 4.2.2., i need to root it eh? If so, point me to the good rooting method and downgrading to 4.2.2. frin 4.4.2 Kitkat(updated OTA). Thanks in Advance!

Den Den said:
What do you suggest? Should i downgrade to 4.2.2.? Or just run with the guide i posted above keeping the 4.4.2. NB4, I just need it to run so i can call, use date, and go to euro and use in usa ofc. Ive been using my 4.2.2. pretty good so far, been almost a year and had no problems with it, should i worry about updating my modem on my 4.2.2.? or anything important, etc? If i should go with 4.2.2., i need to root it eh? If so, point me to the good rooting method and downgrading to 4.2.2. frin 4.4.2 Kitkat(updated OTA). Thanks in Advance!
Click to expand...
Click to collapse
I thought the answers given were pretty clear... I'm actually confused about what phone you're asking about, and if there are, in fact, 2 different phones in question... My answer will be a bit lengthy, but I hope that you can put 1 and 2 together and apply the information I am about to type to your particular situation: Also, I'm not trying to be a ****, just concise.
In reference to the S4 that is on 4.4.2 (NB4) firmware: The unlock method which you posted SHOULD enable the device to use different SIM cards and function in "euro" and "usa." That includes making calls and using "date" (data?) as you mentioned. As far as your question on reverting that particular device: There is no way whatsoever to downgrade the firmware on a device running either stock 4.3 (MK2) or stock 4.4.2 (NB4) obtained by flashing via Odin, Kies, or OTA; so that idea can be forgotten about. The unlock method, from what I gather, simply reverts the modem and allows you to use the old unlock method. then returns the modem to NB4. It does not touch the firmware, bootloader, or anything other than the modem/baseband.
For whichever device this applies to: there should be no need to root either to accomplish either goal. If you wish to root, then I can point you in the right direction; otherwise, if you haven't needed it so far and don't foresee needing it in the future, I say don't worry about it.
As for the device running 4.2.2: if you have had no troubles with reception, then there is no need to update your modem/baseband. There are really only 2 times that updating your modem would come in handy. 1: If you are having reception problems, or 2: If you plan on keeping your bootloader at MDL AND using custom ROMs 4.3 and above. The benefit of this scenario is that keeping your bootloader on MDL means that your device does not have the KNOX-implemented bootloader and can easily be reverted to a completely stock state for warranty purposes yet you still get to have the most up-to-date version of Android. If neither of those conditions apply to you, then there is really no real need to update your modem.

Den Den said:
What do you suggest? Should i downgrade to 4.2.2.? Or just run with the guide i posted above keeping the 4.4.2. NB4, I just need it to run so i can call, use date, and go to euro and use in usa ofc. Ive been using my 4.2.2. pretty good so far, been almost a year and had no problems with it, should i worry about updating my modem on my 4.2.2.? or anything important, etc? If i should go with 4.2.2., i need to root it eh? If so, point me to the good rooting method and downgrading to 4.2.2. frin 4.4.2 Kitkat(updated OTA). Thanks in Advance!
Click to expand...
Click to collapse
The guide you posted should work just fine. Just follow the instructions.
Also, I left out one of the most important parts of having the modems extracted from the 4.3 and 4.4 firmwares. The reason for extracting the modems is so that we can flash them separately from the official firmware which would upgrade us to a Knox bootloader. Using the 4.2 modem with 4.3 and 4.4 roms causes data and sound issues that make the phone pretty much unusable. The same goes for using the 4.3 modem with a 4.4 rom. With the extracted modems we can flash them separately for whatever Android version we're using and have full functionality and retain the MDL bootloader and all it's perks.
If you use a 4.2 rom, you'll need to make sure to flash the MDL modem with it.
For 4.3 roms, you'll need to be on MK2 modem.
4.4 roms require NB4 modem.
As long as you don't update to official 4.3 or 4.4, you'll be able to use any version rom you want according to your preference. Personally, I use 4.4 roms, but it's nice to have the option to go back to 4.2 if I want to. Once you SIM unlock, it should stick between all versions. You should be able to flash any rom that you want without having to worry about going through that process again.

lordcheeto03 said:
I thought the answers given were pretty clear... I'm actually confused about what phone you're asking about, and if there are, in fact, 2 different phones in question... My answer will be a bit lengthy, but I hope that you can put 1 and 2 together and apply the information I am about to type to your particular situation: Also, I'm not trying to be a ****, just concise.
In reference to the S4 that is on 4.4.2 (NB4) firmware: The unlock method which you posted SHOULD enable the device to use different SIM cards and function in "euro" and "usa." That includes making calls and using "date" (data?) as you mentioned. As far as your question on reverting that particular device: There is no way whatsoever to downgrade the firmware on a device running either stock 4.3 (MK2) or stock 4.4.2 (NB4) obtained by flashing via Odin, Kies, or OTA; so that idea can be forgotten about. The unlock method, from what I gather, simply reverts the modem and allows you to use the old unlock method. then returns the modem to NB4. It does not touch the firmware, bootloader, or anything other than the modem/baseband.
For whichever device this applies to: there should be no need to root either to accomplish either goal. If you wish to root, then I can point you in the right direction; otherwise, if you haven't needed it so far and don't foresee needing it in the future, I say don't worry about it.
As for the device running 4.2.2: if you have had no troubles with reception, then there is no need to update your modem/baseband. There are really only 2 times that updating your modem would come in handy. 1: If you are having reception problems, or 2: If you plan on keeping your bootloader at MDL AND using custom ROMs 4.3 and above. The benefit of this scenario is that keeping your bootloader on MDL means that your device does not have the KNOX-implemented bootloader and can easily be reverted to a completely stock state for warranty purposes yet you still get to have the most up-to-date version of Android. If neither of those conditions apply to you, then there is really no real need to update your modem.
Click to expand...
Click to collapse
That Makes sense...just trying to grasp info. on everything so it's more clearer ;p and thanks for correcting me, yea it was data lol.

HampTheToker said:
The guide you posted should work just fine. Just follow the instructions.
Also, I left out one of the most important parts of having the modems extracted from the 4.3 and 4.4 firmwares. The reason for extracting the modems is so that we can flash them separately from the official firmware which would upgrade us to a Knox bootloader. Using the 4.2 modem with 4.3 and 4.4 roms causes data and sound issues that make the phone pretty much unusable. The same goes for using the 4.3 modem with a 4.4 rom. With the extracted modems we can flash them separately for whatever Android version we're using and have full functionality and retain the MDL bootloader and all it's perks.
If you use a 4.2 rom, you'll need to make sure to flash the MDL modem with it.
For 4.3 roms, you'll need to be on MK2 modem.
4.4 roms require NB4 modem.
As long as you don't update to official 4.3 or 4.4, you'll be able to use any version rom you want according to your preference. Personally, I use 4.4 roms, but it's nice to have the option to go back to 4.2 if I want to. Once you SIM unlock, it should stick between all versions. You should be able to flash any rom that you want without having to worry about going through that process again.
Click to expand...
Click to collapse
So If i was on 4.3, and it updated to 4.4.2 kitkat, means it went to the official update eh? As "lordcheeto03" said that once u go to 4.3 or 4.4.2 you cant go back to 4.2, the menu options and w.e go updated, the "about me" is now yellow, the top border of the phone is grey, etc. The new security is enforcing, I guess I'll try the guide i found, hope i don't do anything stupid or skip a step(usually doesn't happen) but feels kinda weird doing things the first time.
On another note, if a phone bricks or in a loop, etc can it be solved? So i still have hope if something goes wrong xD
edit: The guide i link that i found, it works for all m919 models? Since i got t-mobile, not sure if all models(tmobile, att, etc) have the same modem, wouldnt want to brick cuz of not flashing the correct file, w.e(disregard this, i forgot i posted in the t-mobile section, man sometimes i feel like an idiot because i dont double check xD)

Den Den said:
So If i was on 4.3, and it updated to 4.4.2 kitkat, means it went to the official update eh? As "lordcheeto03" said that once u go to 4.3 or 4.4.2 you cant go back to 4.2, the menu options and w.e go updated, the "about me" is now yellow, the top border of the phone is grey, etc. The new security is enforcing, I guess I'll try the guide i found, hope i don't do anything stupid or skip a step(usually doesn't happen) but feels kinda weird doing things the first time.
On another note, if a phone bricks or in a loop, etc can it be solved? So i still have hope if something goes wrong xD
edit: The guide i link that i found, it works for all m919 models? Since i got t-mobile, not sure if all models(tmobile, att, etc) have the same modem, wouldnt want to brick cuz of not flashing the correct file, w.e(disregard this, i forgot i posted in the t-mobile section, man sometimes i feel like an idiot because i dont double check xD)
Click to expand...
Click to collapse
Once you hit 4.3, you lost your ability to downgrade. You can upgrade, but you can't go back. Rest easy, as long as you can get into download mode, you can recover your device. Bootloop, soft brick, whatever; as long as Power + volume down brings you to download mode everything is still OK. Just read the directions a few times.. get used to the idea of what's going on, double check and make sure you have the right software and files, and jump in. You'll do fine. Even after years of jailbreaking iphones and rooting Droids, I still get nervous whenever I have to fire up Odin; but just remember... many many others (more than have posted in that thread for sure) have done the same thing you're about to do, so as long as you follow the directions you will be fine!

lordcheeto03 said:
Once you hit 4.3, you lost your ability to downgrade. You can upgrade, but you can't go back. Rest easy, as long as you can get into download mode, you can recover your device. Bootloop, soft brick, whatever; as long as Power + volume down brings you to download mode everything is still OK. Just read the directions a few times.. get used to the idea of what's going on, double check and make sure you have the right software and files, and jump in. You'll do fine. Even after years of jailbreaking iphones and rooting Droids, I still get nervous whenever I have to fire up Odin; but just remember... many many others (more than have posted in that thread for sure) have done the same thing you're about to do, so as long as you follow the directions you will be fine!
Click to expand...
Click to collapse
Thanks for the reply, now I'm all fired up and ready to do this I'll post back here when i'm done and see how it went xD
Edit: Can i ask you a favor? Could you get me the "M919UVUFNB4_M919TMBFNB4_TMB.zip" modem file and "M919UVUAMDL_M919TMBAMDL_TMB.zip", i think that's what the tutorial link i posted is asking for. But the files r huge, 1.6gb, etc, would take me 3hrs+ each for each file to download just to extract the modem =/ If that's the only thing i need.
found these links: http://rapidgator.net/file/59487dc515500a0430ddaddc780fa555/TMB-M919UVUFNB4-20140314115123.zip.html
and : http://terafile.co/32d149264215/M919UVUAMDL_M919TMBAMDL_TMB.zip
Not sure if they are safe to use or not, not everything on the net is...plus they r huge files =/

Den Den said:
Thanks for the reply, now I'm all fired up and ready to do this I'll post back here when i'm done and see how it went xD
Edit: Can i ask you a favor? Could you get me the "M919UVUFNB4_M919TMBFNB4_TMB.zip" modem file and "M919UVUAMDL_M919TMBAMDL_TMB.zip", i think that's what the tutorial link i posted is asking for. But the files r huge, 1.6gb, etc, would take me 3hrs+ each for each file to download just to extract the modem =/ If that's the only thing i need.
found these links: http://rapidgator.net/file/59487dc515500a0430ddaddc780fa555/TMB-M919UVUFNB4-20140314115123.zip.html
and : http://terafile.co/32d149264215/M919UVUAMDL_M919TMBAMDL_TMB.zip
Not sure if they are safe to use or not, not everything on the net is...plus they r huge files =/
Click to expand...
Click to collapse
These files include modem.bin that is required... I'm not sure why the OP linked to the entire firmware instead of just those links, but anywho...
The NB4 modem can be found in this thread. It's only ~20MB.
The MDL modem is in this thread. It is ~25MB.
Also, quote me instead of just replying to the thread. I'll respond quicker

lordcheeto03 said:
These files include modem.bin that is required... I'm not sure why the OP linked to the entire firmware instead of just those links, but anywho...
The NB4 modem can be found in this thread. It's only ~20MB.
The MDL modem is in this thread. It is ~25MB.
Also, quote me instead of just replying to the thread. I'll respond quicker
Click to expand...
Click to collapse
Flashed ADL using odin, somehow got the menu to work(couldnt budge for some reason to umts), went thru all the steps, it rebooted, put it back to download mode, and flashed it back to nb4. Put my simplemobile simcard in, still nothing, am I supposed to put a different sim card in like ATT or something for it to work? Confused why it didnt work, yet it still detects the MTC european version simcard(not in service, but it had a pin set on it, so it always asks you to unlock the sim with the sim pin u put on it to view ur files on it, etc). Am i doing something wrong? I could give you more info on the phone...
Edit: Just checked on Swappa.com of my imei and got this =/
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Nvm, Looks like i think its blocked on Tmobiles network, but i put in the H2O sim and it worked.(under ATT) phew....

[Q] T999L No signal with any ROM

I have a T999L and have flashed pretty much every ROM, and with all of them, I have no signal. I wipe cache/factory reset, installed, rebooted, and never have a signal. When I go into mobile networks, there's no apn. I've tried everything I could find from others with this problem and can't get it to work. What am I doing wrong? I have literally been doing this all day. Since 10 am and it's now 12:30 am. I would've flashed the stock ROM sooner, but my phone hasn't been working right, so I figured a newer one would be beneficial.
Oh, and I've only been trying the ones that say they're for t999l or d2lte.

Flash stock firmware with Odin. If you're having problems on every single rom something is wrong with your device or firmware. Only way to know is the Odin flash.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

DocHoliday77 said:
Flash stock firmware with Odin. If you're having problems on every single rom something is wrong with your device or firmware. Only way to know is the Odin flash.
Sent from my SAMSUNG-SGH-I747 using Tapatalk
Click to expand...
Click to collapse
Thanks for replying.
I had been using what you provided (thanks for that, btw - that was super fast and easy, so even if I don't have a custom ROM, at least I'm rooted!) I ended up flashing back to that so it at least works. I think before I found your thread, though, I tried flashing ROMs a and stopped because not many said specifically for LTE, so I just didn't want to keep messing around. Once I realized my device was different, I dug more an was saved by your thread. Anyway, is it possible I messed something up when I had originally flashed non-functioning ROMs?

Wow, so I think I figured out my problem, and it's indicative that I shouldn't have been messing around with flashing... I didn't realize firmware and ROMs were different. So since I was flashing 4.4 ROMs with the old firmware, would that result in my problem or a brick? Sounds like unfixable brick, so I'm clearly very fortunate to have a working phone right now! lol
I'm doing a backup now and downloading LUVUBNC1. I know to use Odin for the firmware, but it's a .zip file, which Odin doesn't do... Sorry, I've flashed plenty of ROMs on my old phones, so doing anything outside of a regular .tar in Odin or .zip in recovery is a new concept to me and I'm not having the easiest time finding directions.

Sorry I haven't replied sooner. Had a lot going on lately and its just been hard to do much online.
The firmware you downloaded just needs to be extracted. Its zipped just to make it a smaller download. when you unzip it, the resulting file should be a .tar.md5 file. This is what you flash with Odin.
As for Roms, as long as you stay in the T-Mobile subforums, you will be relatively safe. Just do not flash any firmware or modems that are not specifically for your model. Some people have had some issues with certain roms not working quite right on the T999L, but its nothing that causes permanent harm. If this happens you can always just flash back to a known good rom, or your stock firmware.
So for future reference, you can flash all of the Roms, Kernels and Recoveries found in these T-Mobile forums. (In fact, I suggest flashing either the d2lte or d2tmo recoveries over the d2ltetmo). Just remember, Firmware and Modems are ok ONLY if they are for your model.
And with regard to flashing 4.4 roms on old firmware, you don't need to worrry about a brick as long as you stick to what I just said. The only thing different is for 4.4.2 touchwiz roms (which are all ported from Sprint or AT&T). To run a 4.4.2 TW rom, you must be updated to the 4.3 firmware (which you are if you are running NC1). But even so, if you were on earlier firmware, it wouldnt hard brick, it would just hang at boot.
I hope that clears things up a bit for you!

Downgrading 6.0.1 to 5.1.1

Hi if anyone can help- I'm on the Verizon Samsung Galaxy Note 4 after 2 Note 7's and a Note 3 before that on Biggin's so I've sorta been out of the root game. I want to downgrade from 6.0.1 to 5.1.1. I am downloading the full firmware for the Note 4 from further back in this thread (N910VVRU2CPA1) and am currently on (N910VVRU2CPG2).
From what I understand, I need to do a factory reset, then go to Odin and flash the firmware. I have Odin 3.10.7 and am downloading the N910VVRU2CPA1 as we speak. I see 'hsbadr' firmwares in his thread and the PIT file TRLTE_USA_VZW.pit which I'm not sure is compatable pit file for the specific 5.1.1 firmware or the necessary pit file is included in the full firmware and can anyone tell me if these are the right steps?are these the right steps Any information would be greatly appreciated,
Thanks

@tjmethod by chance how did you process go, did you manage to root and unlock bootloader?

djisback said:
@tjmethod by chance how did you process go, did you manage to root and unlock bootloader?
Click to expand...
Click to collapse
I bought the phone already with 6.0.1 on it and read that you cannot unlock/ root it with mm on it and can only be done after downgrading to 5.1.1 so I haven't done anything yet

I'm in the same boat...Coming from a n7. Bought a n4 on eBay...It's got 601. Want to root...Guess we need to downgrade....Is it possible?

tjmethod said:
Hi if anyone can help- I'm on the Verizon Samsung Galaxy Note 4 after 2 Note 7's and a Note 3 before that on Biggin's so I've sorta been out of the root game. I want to downgrade from 6.0.1 to 5.1.1. I am downloading the full firmware for the Note 4 from further back in this thread (N910VVRU2CPA1) and am currently on (N910VVRU2CPG2).
From what I understand, I need to do a factory reset, then go to Odin and flash the firmware. I have Odin 3.10.7 and am downloading the N910VVRU2CPA1 as we speak. I see 'hsbadr' firmwares in his thread and the PIT file TRLTE_USA_VZW.pit which I'm not sure is compatable pit file for the specific 5.1.1 firmware or the necessary pit file is included in the full firmware and can anyone tell me if these are the right steps?are these the right steps Any information would be greatly appreciated,
Thanks
Click to expand...
Click to collapse
sudermatt said:
I'm in the same boat...Coming from a n7. Bought a n4 on eBay...It's got 601. Want to root...Guess we need to downgrade....Is it possible?
Click to expand...
Click to collapse
Before you can start rooting, you'll need to be on 5.1.1 BPA1. If you're currently on 6.0.1, just download the BPA1 firmware from Sammobile, factory reset on 6.0.1, then flash BPA1 stock via Odin.

quinciebee said:
Before you can start rooting, you'll need to be on 5.1.1 BPA1. If you're currently on 6.0.1, just download the BPA1 firmware from Sammobile, factory reset on 6.0.1, then flash BPA1 stock via Odin.
Click to expand...
Click to collapse
Hi thanks, I had called Samsung and talked to top tier tech support and was told that once the phone has been upgraded to 6.0.1., it cannot be downgraded. and that i need to search the rooting sites and try to find where someone has found a breach or workaround for unlocking the bootloader which will usually have a bounty but I dont know. top tier tech support has always been good. Do you think thats false it cannot be downgraded?

tjmethod said:
Hi thanks, I had called Samsung and talked to top tier tech support and was told that once the phone has been upgraded to 6.0.1., it cannot be downgraded. and that i need to search the rooting sites and try to find where someone has found a breach or workaround for unlocking the bootloader which will usually have a bounty but I dont know. top tier tech support has always been good. Do you think thats false it cannot be downgraded?
Click to expand...
Click to collapse
It's definitely false, when I rooted my phone, I downgraded from 6.0.1 to 5.1.1 without any issues.

quinciebee said:
It's definitely false, when I rooted my phone, I downgraded from 6.0.1 to 5.1.1 without any issues.
Click to expand...
Click to collapse
I will definately give it a go when I have the time, have you flashed a rom and if so which one, there must be some or some tweaks to get rid of the lag?

tjmethod said:
I will definately give it a go when I have the time, have you flashed a rom and if so which one, there must be some or some tweaks to get rid of the lag?
Click to expand...
Click to collapse
I'm currently using CM13 because of Xposed and overall stability, but there are newer roms out there.

quinciebee said:
I'm currently using CM13 because of Xposed and overall stability, but there are newer roms out there.
Click to expand...
Click to collapse
I am a little confused as to whether I've found the right firmwares but I've found the firmwares here:
https://forum.xda-developers.com/no...mware-firmware-kernel-modem-recovery-t2942937
If I am downgrading to 5.1.1. which this phone was obviously on before, I don't know what this phone was on since it currently is on the PL1 build which are not one of the two 6.0.1. builds on this page. I don't even know if that matters.. Anyway, the two 5.1.1. builds are PA1 and OK3. Do you know where any other firmwares out there that might show my current one and the previous build that it came from?
Thanks-

tjmethod said:
I am a little confused as to whether I've found the right firmwares but I've found the firmwares here:
https://forum.xda-developers.com/no...mware-firmware-kernel-modem-recovery-t2942937
If I am downgrading to 5.1.1. which this phone was obviously on before, I don't know what this phone was on since it currently is on the PL1 build which are not one of the two 6.0.1. builds on this page. I don't even know if that matters.. Anyway, the two 5.1.1. builds are PA1 and OK3. Do you know where any other firmwares out there that might show my current one and the previous build that it came from?
Thanks-
Click to expand...
Click to collapse
You want the PA1. It's really easy. Just sounds more complicated then it is. I am using the PaulPizz rom. It is very stable, good battery life, and spen and sview work. If you need any help, let me know.

ziggy71 said:
You want the PA1. It's really easy. Just sounds more complicated then it is. I am using the PaulPizz rom. It is very stable, good battery life, and spen and sview work. If you need any help, let me know.
Click to expand...
Click to collapse
Thanks bro I don't if I'll have time til this weekend to do this- Does this rom have tweaks to fix the aggravating galaxy lag? With a non rooted phone there's goin into recovery and deleting cache, DU speed and phone booster, cleaned but it's like they all have it- thanks again- lookin forward to rooting this damn thing

tjmethod said:
I am a little confused as to whether I've found the right firmwares but I've found the firmwares here:
https://forum.xda-developers.com/no...mware-firmware-kernel-modem-recovery-t2942937
If I am downgrading to 5.1.1. which this phone was obviously on before, I don't know what this phone was on since it currently is on the PL1 build which are not one of the two 6.0.1. builds on this page. I don't even know if that matters.. Anyway, the two 5.1.1. builds are PA1 and OK3. Do you know where any other firmwares out there that might show my current one and the previous build that it came from?
Thanks-
Click to expand...
Click to collapse
Yeah they're out there but that thread hasn't been updated recently. Basically the order after pf3 is pg2, pj2, and then cpl1. The one you want, if your planning on rooting, is bpa1. Also, as far as your question in the op about the pit file, it should really only be used if absolutely necessary. It's in case your partitions have been corrupted for some reason and you need to repartition your device.
Edit- I was going to link to those other firmwares but they are buried in the thread that your already looking in. Either way they aren't necessary for you to unlock your bootloader, you can go straight from cpl1 to bpa1.

kevintm78 said:
Yeah they're out there but that thread hasn't been updated recently. Basically the order after pf3 is pg2, pj2, and then cpl1. The one you want, if your planning on rooting, is bpa1. Also, as far as your question in the op about the pit file, it should really only be used if absolutely necessary. It's in case your partitions have been corrupted for some reason and you need to repartition your device.
Edit- I was going to link to those other firmwares but they are buried in the thread that your already looking in. Either way they aren't necessary for you to unlock your bootloader, you can go straight from cpl1 to bpa1.
Click to expand...
Click to collapse
Hey thanks for confirming all this. So all I need to download and install is the bpa1 firmware via Oden with the AP button I think- I've got a few different versions of Oden on my pc. It's been a while since I've flashed firmware on a phone but I remember it was easy. So just save my pictures, any files, etc. on the sd card, remove it, then do a factory reset or when I put the setting into usb download mode, and flash the firmware this will automatically factory reset the phone? Also earlier today Verizon has been trying to push an software upgrade. After I unlock the bootloader and install twrp then flash a rom, do I need to somehow disable the update notice. I remember having to do that once with another phone.
What rom are you on? Thanks again for the Info-
TJ

tjmethod said:
Hey thanks for confirming all this. So all I need to download and install is the bpa1 firmware via Oden with the AP button I think- I've got a few different versions of Oden on my pc. It's been a while since I've flashed firmware on a phone but I remember it was easy. So just save my pictures, any files, etc. on the sd card, remove it, then do a factory reset or when I put the setting into usb download mode, and flash the firmware this will automatically factory reset the phone? Also earlier today Verizon has been trying to push an software upgrade. After I unlock the bootloader and install twrp then flash a rom, do I need to somehow disable the update notice. I remember having to do that once with another phone.
What rom are you on? Thanks again for the Info-
TJ
Click to expand...
Click to collapse
Yeah that all sounds spot on. I would definitely do the factory reset before you start, but other than that your good. To block the updates, you can uninstall the SDM apps. There are 2 of those and you'll need root to remove them, but you can disable them without root with that debloater tool. The rom I'm currently using is kind of work in progress. I have a couple stock based roms in the dev section, one is stock_plus that has a stock feel with some mods added and the other is Modest Rom that is got some grace apps added and system ui mods. You can find them here and here if you want to check them out.

kevintm78 said:
Yeah that all sounds spot on. I would definitely do the factory reset before you start, but other than that your good. To block the updates, you can uninstall the SDM apps. There are 2 of those and you'll need root to remove them, but you can disable them without root with that debloater tool. The rom I'm currently using is kind of work in progress. I have a couple stock based roms in the dev section, one is stock_plus that has a stock feel with some mods added and the other is Modest Rom that is got some grace apps added and system ui mods. You can find them here and here if you want to check them out.
Click to expand...
Click to collapse
Awesome, I'm going to check those out but I forgot the biggest question of all... how to get rid of the Galaxy lag- is there a rom or tweak where this can be fixed since recovery cache delete and cleaning tools dont really do much?
Thanks again-

tjmethod said:
Awesome, I'm going to check those out but I forgot the biggest question of all... how to get rid of the Galaxy lag- is there a rom or tweak where this can be fixed since recovery cache delete and cleaning tools dont really do much?
Thanks again-
Click to expand...
Click to collapse
Custom kernels help a lot. The problem is it's kind of slim pickings for our specific model, but some of the international kernels work well too. Oscar kernel is made for the 910v so that's probably the most reliable but if your like me, I like to use a permissive kernel and Ram kernel is not a bad choice for that though it's not as feature rich.

kevintm78 said:
Custom kernels help a lot. The problem is it's kind of slim pickings for our specific model, but some of the international kernels work well too. Oscar kernel is made for the 910v so that's probably the most reliable but if your like me, I like to use a permissive kernel and Ram kernel is not a bad choice for that though it's not as feature rich.
Click to expand...
Click to collapse
I really dont know the difference... from what I remember a kernel is the layer between the software and the hardware- a key component of the os. I'm guessing the permissive ones can be used for different roms or firmware? You can probably tell I really don't that much about the root game. The last time I flashed a firmware was on my note 3 after I bricked it. Then rerooted and got on to biggins rom which was great ut I never understood or learned how to use xposed. Anyway, I downloaded Modest Rom, PJ2 _STOCK .tar and am downloading cpl1_tar but I know that once I flash bpa1 firmware which puts the phone back on 5.1.1. I see your roms are 6.0.1 roms, after I flash the bpa1, will the bootloader be unlocked? If so can I then just flash the cpla1_tar or is that not a full firmware? or use one of the two 6.0.1 firmwares from where I found the cpa1? Are the kernels different from 6.0.1 and 5.1.1 and where to find the downloads?? I appreciate the tips especially coming from a develpoer and i'm happy to make a donation- I'm not sure how?
Thanks again!

tjmethod said:
I really dont know the difference... from what I remember a kernel is the layer between the software and the hardware- a key component of the os. I'm guessing the permissive ones can be used for different roms or firmware? You can probably tell I really don't that much about the root game. The last time I flashed a firmware was on my note 3 after I bricked it. Then rerooted and got on to biggins rom which was great ut I never understood or learned how to use xposed. Anyway, I downloaded Modest Rom, PJ2 _STOCK .tar and am downloading cpl1_tar but I know that once I flash bpa1 firmware which puts the phone back on 5.1.1. I see your roms are 6.0.1 roms, after I flash the bpa1, will the bootloader be unlocked? If so can I then just flash the cpla1_tar or is that not a full firmware? or use one of the two 6.0.1 firmwares from where I found the cpa1? Are the kernels different from 6.0.1 and 5.1.1 and where to find the downloads?? I appreciate the tips especially coming from a develpoer and i'm happy to make a donation- I'm not sure how?
Thanks again!
Click to expand...
Click to collapse
Hey buddy, did you get it figured out? I broke my arm at work on Sunday and of course it's my right arm so I'm having some issues responding back on my note with one hand. I bet I've dropped this thing 20 times already.

kevintm78 said:
Hey buddy, did you get it figured out? I broke my arm at work on Sunday and of course it's my right arm so I'm having some issues responding back on my note with one hand. I bet I've dropped this thing 20 times already.
Click to expand...
Click to collapse
Oh man that sucks- hopefully they gave you some good pain meds. Anyway, I havent taken th plunge yet- once I get on to 5.1.1 then twrp, I want to go on to 6.0.1 but am unsure as to what point the bootloader is unlocked or exactly what to do to upgrade to 6.0.1 once I crack the bl. I just dont want to go through the dreaded set up everything twice.

Can't connect to certain Wi-Fi, need help

I just joined in the past few days because I decided to try different ROMs on my i747. This is my 1st ever post, and I thought I'd try out this rooting and flashing that I'm missing out on.
First of all, THANKS to EVERYONE that posts here for all of the help given to me and that others have used. Nice to see people helping out other people in such ways.
Second, I have successfully put a few different ROMs on my i747 over the past few days and can't believe how easy it was. I was always scared to do it. I decided since the thing was just sitting in a drawer not being used "What's the risk?"
Third, my actual issue...No matter what ROM I have on the i747, it will not connect to Wi-Fi at my work. FYI, I work (in IT ironically) in a very large company with hundreds of access points around the campus. So I know it is not the network, as we would have others with the same issue. It connects to all other (that I've tried so far) Wi-Fi networks with no issues.
I just don't understand all the terms bootloader, firmware, kernel, modem etc. I read decriptions (on here) trying to explain and I just can't grasp it.
I was on stock with whatever the last OTA update from AT&T was. I updated the boatloader (I believe) from NE4 to NJ1 to NJ2 using this thread. At least, I'm assuming I did it right. Nothing failed and the Phone Info app looks like it worked. https://forum.xda-developers.com/galaxy-s3-att/general/ucuemjb-to-ucufne4-firmware-update-t2808654
Anyone can give me any tips on what I need to do to possible get this working? It's not really a huge deal breaker, it's just bugging me as to why it isn't working.
Thanks in advance!

You upgraded the modem/baseband software when updating the bootloader?

audit13 said:
You upgraded the modem/baseband software when updating the bootloader?
Click to expand...
Click to collapse
I'm guessing no. How do I do that? Don't want to brick it.
I found this link, but what firmware am I on? How do I tell?
https://forum.xda-developers.com/galaxy-s3-att/general/modem-4-4-2-modems-i747-i747m-t2856577

Did you flash the zip or did you flash aboot.mbn? If you flashed the zip, the bootloader and modem would have been updated at the same time.

audit13 said:
Did you flash the zip or did you flash aboot.mbn? If you flashed the zip, the bootloader and modem would have been updated at the same time.
Click to expand...
Click to collapse
I flashed the zip.

So an unrooted stock ROM also refuses to connect?

audit13 said:
So an unrooted stock ROM also refuses to connect?
Click to expand...
Click to collapse
I don't know how to go back to stock.