Downgrade the Modem to MK2 - T-Mobile Samsung Galaxy S 4

My wife is running stock TW 4.4.2 (Modem - NB4) and she is constantly losing cell coverage. The signal bars change to zero with line through it and she cannot make / receive calls. Prior to the upgrade to NB4 she was doing just fine. I was thinking of just trying to install the previous modem (M919UVUEMK2).
Would prefer not to root / or use a custom ROM for her phone. Can I just download the MK2 modem and install via Odin?

This method may work for you.
http://forum.xda-developers.com/showthread.php?t=2544612
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Android_Monsters said:
This method may work for you.
http://forum.xda-developers.com/showthread.php?t=2544612
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
would this method work even if the phone is already on a knox bootloader?

Related

Mk2 modem

Can anyone make a mk2 modem zip flash file for tw 4.3
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At this time there is no way to flash radios(modems) on the tmo S4. You can only flash though Odin, or kies.
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yongh said:
Can anyone make a mk2 modem zip flash file for tw 4.3
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Click to expand...
Click to collapse
Did you give MobileOdin a shot? Should work fine.
have not try yet , because i see lot ppl have problem after flash the modem , so want to make sure what its work before flash it
I used mobile odin it took me 1 minute.
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Any luck w Heimdall
xda23 said:
I used mobile odin it took me 1 minute.
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Click to expand...
Click to collapse
What about heimdall? I did,
sudo heimdall flash --MDM modem.bin
but it did not work even though it completed.
---------- Post added at 10:46 PM ---------- Previous post was at 10:33 PM ----------
This is the only combo that worked. (THEY HAD TO BE done at the SAMETIME!)
heimdall flash --MDM modem.bin --APNHLOS NON-HLOS.bin
Sound Issues?
xda23 said:
I used mobile odin it took me 1 minute.
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Click to expand...
Click to collapse
Did you have sound issues after flash? I currently have no sound and I have re-wiped as well. Is there a special partition for sound as well. If so which is it?
nmccready said:
Did you have sound issues after flash? I currently have no sound and I have re-wiped as well. Is there a special partition for sound as well. If so which is it?
Click to expand...
Click to collapse
Flash ONLY the modem.bin and you shouldn't have sound issue.
☞ Sent from here☜???
Sound BS
nmccready said:
Did you have sound issues after flash? I currently have no sound and I have re-wiped as well. Is there a special partition for sound as well. If so which is it?
Click to expand...
Click to collapse
Yes, found answer here in detail.
http://forum.xda-developers.com/showthread.php?t=2544612
Where can I find the new modem file?
On the first page of this thread: http://forum.xda-developers.com/showthread.php?t=2544612
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Isn't the MK2 modem the new one? If so, then I was looking for the MK2 modem.
nmccready said:
What about heimdall? I did,
sudo heimdall flash --MDM modem.bin
but it did not work even though it completed.
---------- Post added at 10:46 PM ---------- Previous post was at 10:33 PM ----------
This is the only combo that worked. (THEY HAD TO BE done at the SAMETIME!)
heimdall flash --MDM modem.bin --APNHLOS NON-HLOS.bin
Click to expand...
Click to collapse
There's a super hackish way I discovered that works for flashing everything on the M919 but I haven't tried scripting it yet. It totally works though -- I've updated S4 to latest MDL firmware in heimdall without use of Odin at all.
I might just write up a script to guide the process as it requires human intervention at several steps and is a pain.
EDIT: Oh, it's simple. I was already on MDL. Just heimdall flash --MDM modem.bin --no-reboot, hard reboot the phone after flash, run heimdall again to flash but without --no-reboot, and voila.
4.4.2 modem switch
Just want to make sure here. I'm on CM-11-20140210-Snapshot-M3-jfltetmo (T-Mo phone with ATT service) and have the M919UVUFNB4. Im getting network drops and "no service" at home, and intermittently other places.
Rooted, unlocked, don't care about the warranty etc. It's corporate service, so this rom (after lots of testing ROMS) finally was one i can install Lync mobile 2013 and encrypt for my corp email access. Flawlessly operating so far other than that network issue.
I'm seeing that people are flashing modem.bin for the M919 on 4.4.2 but also seeing not to use it unless you are on 4.3 here. So, am curious what modem they flashed and if there was any specific addendum to the instructions they had to follow on a 4.4.2 ROM.
I did try to flash the MK2_NON-HLOS.zip but it didnt change my baseband the first time, so I figured Id rather ask a stupid or already answered q, than have to wipe, flash my ROM yet again.
So if someone could just confirm for me what modem/process they have working with the 4.4.2 I would greatly appreciate it.
Im at work tonight, so if i missed it and the info is already out there, please drop me the link so I can read while I face-palm.
Are you on the new baseband and bootloader? Or just the new baseband?
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I'd update to the latest cm nightly. And I'm hoping you didn't update to the 4.4.2 bootloader just the baseband. This is what mine looks like. No data drops, etc.
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Android_Monsters said:
Are you on the new baseband and bootloader? Or just the new baseband?
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Click to expand...
Click to collapse
I havent updated the bootloader purposely since I was on 4.3 And only flashed a handful of custom roms like CM. So I believe i should still be on the 4.3
Android_Monsters said:
I'd update to the latest cm nightly. And I'm hoping you didn't update to the 4.4.2 bootloader just the baseband. This is what mine looks like. No data drops, etc.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I stuck with this build because it didnt have any problems encrypting which i needed for mobileiron to report device compliance etc for corp email. Without being sure that the new builds will encrypt without issue, Ill just wait a while and leave it alone so long as I am not getting drops in service at home.
Which ironically after i posted, it didnt do last night. Ill have to test again tonight and see if it does drop again or if it was a fluke. If so, ill be checking bootloader version, (not sure how to yet but research is my friend) and doing some flashing again. YAY TRIAL AND ERROR!!
thanks btw for the response.

HELP!!!!! major issues

hi i just upgraded my phone to android 4.3 last night and it screwed up my phone i lost data and wifi i ended up flashing the modem and it fixed my data but not my wifi. i had to root and flash a custom rom to get my wifi but now i have noticed no matter what rom i try my phone will not make or receive calls. all it does is lag out and when using google edition it vibrates several times but then nothing else happens on touchwiz roms the screen stays white and nothing else happens. please help im a noob and i have been having so many problems and i just need some good news
I'd Odin to the stock 4.3 image.
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Android_Monsters said:
I'd Odin to the stock 4.3 image.
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Click to expand...
Click to collapse
do you think that would help? because samsung told me to root to get my phone functional again
Android_Monsters said:
I'd Odin to the stock 4.3 image.
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Click to expand...
Click to collapse
and where can i find the stock image? and kies doesnt read my phone either
I would odin flash back to 4.2 to avoid Knox if you don't have it already. Sounds like you were already flashing custom Roms.
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[email protected] said:
I would odin flash back to 4.2 to avoid Knox if you don't have it already. Sounds like you were already flashing custom Roms.
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Click to collapse
the problem is my dad updated his to 4.3 with no issues so i did the same thing the day after and i lost data and wifi and calling. i was on samsung support call for over 2 hours they said try anything you can to get it to work so i was told to root and flash a custom software so i did because i have the mk2 modem i flashed the aosp google edition rom and wifi and data worked but not calling but i didnt notice that it was my phone until i flashed wicked v9.
You can get the stock firmware here: http://www.sammobile.com/firmwares/1/?model=SGH-M919V&pcode=0#firmware
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Android_Monsters said:
You can get the stock firmware here: http://www.sammobile.com/firmwares/1/?model=SGH-M919V&pcode=0#firmware
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Click to expand...
Click to collapse
thanks for software but where do i place it? phone, pda, or csc or all 3?
Let's start over for a minute. Give us a few more details. Are you on official 4.3 or a or a custom rom? Are you rooted? Can you get into download mode?
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Wow. Samsung told you to root? To bad you don't have that in writing.
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Android_Monsters said:
Let's start over for a minute. Give us a few more details. Are you on official 4.3 or a or a custom rom? Are you rooted? Can you get into download mode?
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Click to expand...
Click to collapse
i was on stock software and that is when everything went wrong i ended up flashing google play edition 4.4 and my wifi and data started to working but this was late at night when this finally happened i went to make a call this morning and it didnt do anything. i flashed wicked v9 figuring that would fix it and i went to make a call and it did not work. so i came on here to see if i could find a solution and your have been the most help oh and i checked my pda phone and csc and they are i believe pda: me7 phone: mk2 and csc: me7 with that link you gave in odin do i have to put it in the phone the pda or the csc?
Android_Monsters said:
I'd Odin to the stock 4.3 image.
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Click to collapse
thank you very much this fixed all my problems
Android_Monsters said:
Let's start over for a minute. Give us a few more details. Are you on official 4.3 or a or a custom rom? Are you rooted? Can you get into download mode?
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Click to expand...
Click to collapse
such questions and comments makes me learn some stuff as I hiccup along learning Android

I'm on 4.2.2 can flash 4.3 roms

So I'm stock rooted if I flash 4.3 ROM well can I still go back to 4.2.2 and do I need to flash mk2 modem?
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As long as you DON'T update the bootloader to 4.3 you can go back to 4.2. Just flash with recovery. You'll need to update the modem to mk2.
☞ Sent from here ☜
Thanks
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tcuwolf said:
So I'm stock rooted if I flash 4.3 ROM well can I still go back to 4.2.2 and do I need to flash mk2 modem?
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Click to expand...
Click to collapse
I actually just did mine too a few days ago.
Since you're already rooted, and you havent updated to 4.3, go to this link,
http://forum.xda-developers.com/showthread.php?t=2544612
Flash the modem onto your phone.
After you've installed it, you can flash any rom you want from 4.2 to 4.3 and 4.4.
Its as simple as that. I had a hard time figuring out what I had to do, but all you need to do is root, install that modem, and then you can flash all you want.
No good
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So I try to use mobile Odin pro and I get an write protection and tells me to use triangle away do I have to be on stock rooted rom
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Use a computer instead.
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[Q] using t-mobile custom roms with att phone.

Hi I just unlocked the note 2 att version to work for t-mobile by downgrading to firmware 4.1.1. Now I can use the phone for t-mobile. I now want to root and have an updated t-mobile based custom rom installed.
To achieve this must I first odin flash t-mobile's official 4.1.3 (or 4.1.2) firmware and
then root and then install a t-mobile 4.1.3 (or 4.1.2) based custom rom?
Or can I simple root and just install a 4.1.3 (or 4.1.2) t-mobile custom rom?
Thanks!
h1a8 said:
Hi I just unlocked the note 2 att version to work for t-mobile by downgrading to firmware 4.1.1. Now I can use the phone for t-mobile. I now want to root and have an updated t-mobile based custom rom installed.
To achieve this must I first odin flash t-mobile's official 4.1.3 (or 4.1.2) firmware and
then root and then install a t-mobile 4.1.3 (or 4.1.2) based custom rom?
Or can I simple root and just install a 4.1.3 (or 4.1.2) t-mobile custom rom?
Thanks!
Click to expand...
Click to collapse
you should be able to root 4.1.1 and I think you should be able to root it with the exynos abuse apk. if not cf auto root should handle it. then you can add recovery and flash any rom you wanted
I've done this too. I was wondering if international ROMs would work on the att note2 unlocked and on T-Mobile. I've searched around but I found it tough to get a strait answer. I will probably just try it and see but wanted to ask first.
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epicnoob66 said:
I've done this too. I was wondering if international ROMs would work on the att note2 unlocked and on T-Mobile. I've searched around but I found it tough to get a strait answer. I will probably just try it and see but wanted to ask first.
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Click to expand...
Click to collapse
n7105 = yes
n7100 = no
epicnoob66 said:
I've done this too. I was wondering if international ROMs would work on the att note2 unlocked and on T-Mobile. I've searched around but I found it tough to get a strait answer. I will probably just try it and see but wanted to ask first.
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Click to expand...
Click to collapse
Make sure you stick with your device's native modems. Don't try a T889 modem on an I317. You will be sad.
Hastily spouted for your befuddlement
I've been reading and searching and reading for days, trying to get LTE working. I should have just waited and found a T-Mobile note2.
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epicnoob66 said:
I've been reading and searching and reading for days, trying to get LTE working. I should have just waited and found a T-Mobile note2.
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Click to expand...
Click to collapse
I trust you have read this then...
http://forum.xda-developers.com/sh...(3g/4g Tmobile) on ATT Note 2 stock baseband
If not, stick with your I317 modems and follow the OP process.
Hastily spouted for your befuddlement
I have read all of that thread. The only thing I have not tried from it was changing the imei to 0, which one or two people said worked. I'm beginning to think the guy that sim unlocked my note2 didn't do it correctly. If I Odin back to 4.1.1 will it allow me to unlock again?
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epicnoob66 said:
I have read all of that thread. The only thing I have not tried from it was changing the imei to 0, which one or two people said worked. I'm beginning to think the guy that sim unlocked my note2 didn't do it correctly. If I Odin back to 4.1.1 will it allow me to unlock again?
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Click to expand...
Click to collapse
If you can get any tmo service at all, it is unlocked. If you really want to try the unlock again, just flash a 4.1.1 modem appropriate for your device's model number. Don't flash modems across device models.
Are you certain you are in an area that has tmobile LTE service?
What baseband are you on?
Hastily spouted for your befuddlement
Do I need both a tmo and att sim card to unlock?
Yes we have LTE. I've been able to connect to LTE with nexus 4, HTC one and note3.
I was on 4.1.2 modem and I flashed the newest one Monday.
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epicnoob66 said:
Do I need both a tmo and att sim card to unlock?
Yes we have LTE. I've been able to connect to LTE with nexus 4, HTC one and note3.
I was on 4.1.2 modem and I flashed the newest one Monday.
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Click to expand...
Click to collapse
I don't think you need both sims.
What specific baseband are you on?
Have you put *#2263# and checked to ensure you are in automatic. Have you tried to allow all LTE bands via the same menu?
Hastily spouted for your befuddlement
I'll have to look later. Its my wife's phone. I've done the dialer code. When I set it to LTE only its gets nothing at all.
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---------- Post added at 12:17 PM ---------- Previous post was at 12:11 PM ----------
Its on the mk6 modem now.
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hey i have an att note 2 and have tmobile service. the phone is unlocked, rooted and on 4.1.2?
what would be the best thing to do? im thinking getting the tmobile software/ROM. once i have that will it work lik a regular t mobile note, (like i will be
able to update OTA when 4.4 for t mobile's note 2 comes out?)
but i dont know how to. i have odin installed n thats all lol. do i need to change kernels? im a total noob on this stuff. help me please
i want to update to the newest tmobile stock firmware, cuz on the att one i cant even turn on my wifi, i hear the best thing to do to fix that problem is to update the firmware or factory reset it, which is only a temporary fix. n i cant update it because im on t mobiles network.
Yes you can flash T-Mobile Roms.
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No data or cell signal

After flashing a Rom from the drippler app I lost my data and cellular signal. I also lost my imei info. Please help
Sent from my SGH-T889 using XDA Free mobile app
What Rom?
Is it compatible for the T889?
Need more info....
androidrook said:
After flashing a Rom from the drippler app I lost my data and cellular signal. I also lost my imei info. Please help
Sent from my SGH-T889 using XDA Free mobile app
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Click to collapse
Could be either an n7100 rom or if it was an n7105 rom just re flash your modem and you should get baseband back. If n7100 just odin back to a fully stock image to get baseband back.
Sent from my GT-N7105 using Tapatalk
The ROM is called DN3_v5+_by_E-team. I have tryed flashing radio and modem. I also tryed using Odin back to stock but it runs most of the flash but then Odin fails at the end. When I try to turn phone on I get bootloop
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androidrook said:
The ROM is called DN3_v5+_by_E-team. I have tryed flashing radio and modem. I also tryed using Odin back to stock but it runs most of the flash but then Odin fails at the end. When I try to turn phone on I get bootloop
Sent from my SGH-T889 using XDA Free mobile app
Click to expand...
Click to collapse
It's not for the t889 it's a n7100 rom which needs mostly this to be ported over. modem, kernel, bin files, lib files, csc files and build prop change. your better flashing the DN3 V4 in att forum as it's compatible with your phone. You may need to factory reset after flashing an odin image to stop boot looping.
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cnote74 said:
It's not for the t889 it's a n7100 rom which needs mostly this to be ported over. modem, kernel, bin files, lib files, csc files and build prop change. your better flashing the DN3 V4 in att forum as it's compatible with your phone. You may need to factory reset after flashing an odin image to stop boot looping.
Sent from my GT-N7105 using Tapatalk
Click to expand...
Click to collapse
Okay i used Odin to flah a stock rom and did the factory reset to stop bootloop. i still dont have cellular or data signal and my imei number and baseband still say unknown. any ideas?
androidrook said:
Okay i used Odin to flah a stock rom and did the factory reset to stop bootloop. i still dont have cellular or data signal and my imei number and baseband still say unknown. any ideas?
Click to expand...
Click to collapse
Try flashing the newest t-mobile modem in either recovery or download mode if that doesn't work, then download the firmware with bootloader in it like your mk7 and flash it with odin.
Sent from my GT-N7105 using Tapatalk
Where can I find the mk7 with bootloader?
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androidrook said:
Where can I find the mk7 with bootloader?
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Click to expand...
Click to collapse
sammobile.com/firmwares search for t889 and you will find it.
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