Develop Bugs

[Q] baseband unknown, trying to downgrade rom

Hey guys, so I finally decided to go back to a stock rom for the t989 (4.1.2)
i downloaded tiberus for the kernel
uvmc6 stock for the rom via this thread <<is that even a legitimate stock? i'm not sure because that's the only one i could find that doesn't seem to be tampered with.
and uvmc6 for the radio
for some reason, after flashing, everything works great but i have no signal. the baseband in the "about phone" reads "unknown"
I don't know what i did wrong because it seems like I did everything right by getting the same version, kernel and radio for it but it's still not working.
even tried going to an earlier radio but still no success.
can someone tell me if i'm missing a step? did i do something wrong? can i even downgrade (specifically coming from this ROM and i want to go back to stock)

I am facing the exact same issue. Can anyone please share any pointers. Thanks so much.
umchriswho said:
Hey guys, so I finally decided to go back to a stock rom for the t989 (4.1.2)
i downloaded tiberus for the kernel
uvmc6 stock for the rom via this thread <<is that even a legitimate stock? i'm not sure because that's the only one i could find that doesn't seem to be tampered with.
and uvmc6 for the radio
for some reason, after flashing, everything works great but i have no signal. the baseband in the "about phone" reads "unknown"
I don't know what i did wrong because it seems like I did everything right by getting the same version, kernel and radio for it but it's still not working.
even tried going to an earlier radio but still no success.
can someone tell me if i'm missing a step? did i do something wrong? can i even downgrade (specifically coming from this ROM and i want to go back to stock)
Click to expand...
Click to collapse

umchriswho said:
Hey guys, so I finally decided to go back to a stock rom for the t989 (4.1.2)
i downloaded tiberus for the kernel
uvmc6 stock for the rom via this thread <<is that even a legitimate stock? i'm not sure because that's the only one i could find that doesn't seem to be tampered with.
and uvmc6 for the radio
for some reason, after flashing, everything works great but i have no signal. the baseband in the "about phone" reads "unknown"
I don't know what i did wrong because it seems like I did everything right by getting the same version, kernel and radio for it but it's still not working.
even tried going to an earlier radio but still no success.
can someone tell me if i'm missing a step? did i do something wrong? can i even downgrade (specifically coming from this ROM and i want to go back to stock)
Click to expand...
Click to collapse
Not sure about the rom you linked, it's not official stock is about all I can see just from the filename.
If you really want to go back to official stock 4.1.2 ROM, then you need to download either one of these, this is for T-mobile/T989 or this is for Telus/Koodo/T989D
Either of those I linked are flashed through Odin in Download mode. unpack and flash in Odin, If you need a re-fresher on how to use Odin check here, at Step 9 just replace that with the rom you downloaded/unzipped.

[Q] HELP!!

Hello everyone i have an galaxy s3 at&t version and i was trying to install a rom and the rom said it needed a certain bootloader so i download it and flash it and now my phone won reconize my sim or network state nor imei and i need help please !!!
!!!!!
ive tried odin and try reflashing back to stock but odin failed

ImJusDatGuy said:
Hello everyone i have an galaxy s3 at&t version and i was trying to install a rom and the rom said it needed a certain bootloader so i download it and flash it and now my phone won reconize my sim or network state nor imei and i need help please !!!
!!!!!
Click to expand...
Click to collapse
Definitely more info needed.
What ROM is on your device?
What bootloader did you install?
What modem/baseband/radio is on your device?
What method did you use to try to install the bootloader?
Is your phone still showing the correct IMEI in settings or 0 ? (Compare between that shown in settings and under the battery.)
It may be as simple as updating your modem, but I/we can't tell yet.

dawgdoc said:
Definitely more info needed.
What ROM is on your device?
What bootloader did you install?
What modem/baseband/radio is on your device?
What method did you use to try to install the bootloader?
Is your phone still showing the correct IMEI in settings or 0 ? (Compare between that shown in settings and under the battery.)
It may be as simple as updating your modem, but I/we can't tell yet.
Click to expand...
Click to collapse
the rom i have at the moment is the restored verison of the rooted rom i have which is stock 4.1.1 with root
the bootloader i install is I747UCUEMJB
my phone says baseband verison is unknown
i install the bootloader through cwm
the imei is unknown also my phone number to and network and roaming says not roaming mobile network state is disconnected.
everything is messed up thanks for the quick reply man i need help.

ImJusDatGuy said:
the rom i have at the moment is the restored verison of the rooted rom i have which is stock 4.1.1 with root
the bootloader i install is I747UCUEMJB
my phone says baseband verison is unknown
i install the bootloader through cwm
the imei is unknown also my phone number to and network and roaming says not roaming mobile network state is disconnected.
everything is messed up thanks for the quick reply man i need help.
Click to expand...
Click to collapse
I'm new at this, in fact I have flashed by old Captivate several times but yet to flash my SGS3. Anyhow, I have spent many hours reading. Before doing anything I suggest, read, and read some more.
Don't flash back to 4.1.1 or 4.1.2 at this point. They will install an older bootloader than is currently on your phone. From what I have read, you narrowly escaped bricking your phone. You might want to read some of the threads regarding the 4.3 stock ROM and unbricking before making any changes in restoring your device.
You can probably fix this by flashing the modem that goes with the 4.3 series ROMs. It would also be the MJB flavor, although the MJ2 would probably work. Several of the 4.3 TouchWiz ROMs in the development forum have download links for the MJB modem. I would guess you were probably going to install one of them. I would recommend flashing the modem to see if that solves your issues before going ahead with the ROM flash.

dawgdoc said:
Definitely more info needed.
What ROM is on your device?
What bootloader did you install?
What modem/baseband/radio is on your device?
What method did you use to try to install the bootloader?
Is your phone still showing the correct IMEI in settings or 0 ? (Compare between that shown in settings and under the battery.)
It may be as simple as updating your modem, but I/we can't tell yet.
Click to expand...
Click to collapse
dawgdoc said:
I'm new at this, in fact I have flashed by old Captivate several times but yet to flash my SGS3. Anyhow, I have spent many hours reading. Before doing anything I suggest, read, and read some more.
Don't flash back to 4.1.1 or 4.1.2 at this point. They will install an older bootloader than is currently on your phone. From what I have read, you narrowly escaped bricking your phone. You might want to read some of the threads regarding the 4.3 stock ROM and unbricking before making any changes in restoring your device.
You can probably fix this by flashing the modem that goes with the 4.3 series ROMs. It would also be the MJB flavor, although the MJ2 would probably work. Several of the 4.3 TouchWiz ROMs in the development forum have download links for the MJB modem. I would guess you were probably going to install one of them. I would recommend flashing the modem to see if that solves your issues before going ahead with the ROM flash.
Click to expand...
Click to collapse
Could you provide an link by any chance please i dont want to install anything wrong and btw im on jb 4.1.1 do i need to install a 4.3 rom also ? or ?

ImJusDatGuy said:
Could you provide an link by any chance please i dont want to install anything wrong and btw im on jb 4.1.1 do i need to install a 4.3 rom also ? or ?
Click to expand...
Click to collapse
The reason I didn't put a link in the previous posts was to get you to read about what you were doing as you searched for the modem. I am offering advice on things I have yet to experience on this device and only speaking second hand. My advice is only based on what I have read not on anything I have had to correct myself.
In truth I think you just stopped too soon in the process of what you were doing earlier. You said you installed the 4.3 bootloader in preparation to installing a 4.3 or later ROM that required the up to date bootloader. You didn't mention installing the current modem/baseband. You didn't mention trying to flash whatever ROM you had been considering.
You may be able to correct your device simply by installing the 4.3 modem. HERE is the modem thread, it is in the General Forum for our device. Make sure you pick the correct one. I don't know if your device will work well on the MJB bootloader and modem with a 4.1.1 ROM, from something I seem to recall reading I suspect it will.
Take this in steps. Install the correct modem, the one that matches your bootloader. See if that corrects you sim, data, and IMEI problems. If it does correct the issues, the next step is to decide if you want to stay on the 4.1.1 ROM or change to whatever ROM you had been considering. If you decide to change, make backups first. If it doesn't fix the problem while on 4.1.1 you may want to flash the version of the official 4.3 ROM enewman17 has provided on the development thread.
Take it one step at a time. Read about what you are about to do until you understand it well, all before doing anything. Make backups sequentially as you make each corrective step.
HTH.

dawgdoc said:
The reason I didn't put a link in the previous posts was to get you to read about what you were doing as you searched for the modem. I am offering advice on things I have yet to experience on this device and only speaking second hand. My advice is only based on what I have read not on anything I have had to correct myself.
In truth I think you just stopped too soon in the process of what you were doing earlier. You said you installed the 4.3 bootloader in preparation to installing a 4.3 or later ROM that required the up to date bootloader. You didn't mention installing the current modem/baseband. You didn't mention trying to flash whatever ROM you had been considering.
You may be able to correct your device simply by installing the 4.3 modem. HERE is the modem thread, it is in the General Forum for our device. Make sure you pick the correct one. I don't know if your device will work well on the MJB bootloader and modem with a 4.1.1 ROM, from something I seem to recall reading I suspect it will.
Take this in steps. Install the correct modem, the one that matches your bootloader. See if that corrects you sim, data, and IMEI problems. If it does correct the issues, the next step is to decide if you want to stay on the 4.1.1 ROM or change to whatever ROM you had been considering. If you decide to change, make backups first. If it doesn't fix the problem while on 4.1.1 you may want to flash the version of the official 4.3 ROM enewman17 has provided on the development thread.
Take it one step at a time. Read about what you are about to do until you understand it well, all before doing anything. Make backups sequentially as you make each corrective step.
HTH.
Click to expand...
Click to collapse
i've read this one thread and ive downloaded the modem and the rom ive tried to instal was a kitkat version of quatom v3.3 and it say get prop bootloader and i looked up the error everyone said to update your bootloader and thats how i got into this mess. :'( but thank you bro i really appreciate you took the time out of your day to help me.

ImJusDatGuy said:
i've read this one thread and ive downloaded the modem and the rom ive tried to instal was a kitkat version of quatom v3.3 and it say get prop bootloader and i looked up the error everyone said to update your bootloader and thats how i got into this mess. :'( but thank you bro i really appreciate you took the time out of your day to help me.
Click to expand...
Click to collapse
thanks man for telling me what was wrong your an amazing human being and i love you (no homo) and thanks again a million thanks bro.

Did that modem fix some of the problems?

If your on 4.1.1 shouldn't you flash the DKL3 version or can't you just flash thru Odin the DLK3 stock ROM thru Odin Amd start all over again
I've been on 4.3 with that bootloader Amd have flashed back to 4.1 back to the baseband version DLK3 firmware. I would think being on 4.1 you should be able to reflash using Odin to fix the issue or flash the modem for 4.1 .

Confused as to how to install CWM on Rogers Note 2

Firstly, I am not new to flashing or searching on XDA! I have installed custom roms/recoveries on at least 10 different android devices and have been a member here for some time. I'd like to think that I have helped more people out than I've asked for help....
but my new (to me) Note 2 has me stumped!!!
I have recently traded in my much loved Note 1 (running a rock solid AOKP KIT KAT rom) for a SGHi1317m (I believe originally from Rogers). It was unlocked and I am able to get full LTE service from my carrier (Bell Mobility) after setting the APN.
I originally upgraded in order to get greater functionality out of my Gear 1 smartwatch (better battery life with BT 4.0, among other benefits)
24 hours in and I am dieing to get back to some form of KitKat! The question is How?
I have searched this forum and have come away with the impression that because of the different variations on this phone, Knox, differing bootloaders with differing recoveries, there are many ways to brick this phone!!
I have already found out that one cannot easily update the recovery via the simple solutions offered on the playstore for CWM or TWRP. I am familiar with ODIN and have multiple versions of it running on different laptops in my house ready to try. The question is which package will give me a recovery that will allow me to flash roms and persist through a reboot?
According to my phone info, I am on bootloader i317MVLUCMK5 ( a version I have not seen in any of the tutorials) My KNOX counter reads 0x0 but when I try to search for updates ( I am presently on stock android 4.3 rogers), it says that I will not receive any as my phone has been modified (i suspect it can tell that the phone is unlocked as I am using a Bell sim in a Rogers phone).
As I have no warranty, and don't really care if my Knox counter is tripped, I am hoping someone can help me get started in flashing this phone.

i think if you look in the cwm thread you'll find instructions. mostly everything i see is a soft brick meaning it just doesnt boot into rom. i suggest cwm as it seems more maintained than twrp, and twrp gave me issues.
download a stock modem because the international roms will overwrite your modem and you'll get no signal bars and need to reflash after a upgrade. check out the n7100 form, sub forum n7105 and look for roms there. this forum is really dead. i'm running international rom nc3 with my at&t mk6 modem. mj5 bootloader because its 4.3 but unlocked from downgrading.
i too didn't care about knox or warranty, but most of the good stock roms have it stripped. i can't find anything as good as 4.3 tw stock roms and the custom roms i've tried seem to have fc's and whatnot.
i also used devil kernel and got tons of fc's so i'm using the stock kernel for now. might try agni. but back on topic your best bet is to try and find cwm odin package for philz touch. really once you get past all the noobs here you find it works just like any other samsung. you can flash a recovery via odin, cf auto root, and you're done.

[Q&A] [Baseband] ALL T999, T999L, T999V, T999N Modems! w/ MAP and Data Tweaks!

Q&A for [Baseband] ALL T999, T999L, T999V, T999N Modems! w/ MAP and Data Tweaks!
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:

modem T999VVLUFNH2
Hi everybody,
I try to find the updated modem for my S3 (videotron SGH-T999v)
I have the modem T999VVLUFNF1 (ROM LS 3.1 stable KK 4.4.4, KT747 kernel)
When I unzip the official ROM of samsung (older like 4.1.2 and the last samsung update from september 2014) , I only find the file NON-HLOS.bin
According to sammobile the last videotron modem is T999VVLUFNH2, but I cannot find the file. This is the first time I try to update the modem because I have a poor reception in my house.
Thank you for your help

I haven't decided if I will post those or not. Too great a risk with the 4.4.2 modems. If you want to try the latest I can only recommend fully updating as a safe way to do so.
If you really want to be the one to test if it's safe, I'll get it uploaded for you, but understand there is a chance it could hard brick the phone beyond repair.
Reason for all of this is because we know if you flash a 4.4.2 modem on 4.3 it'll permanently brick it. I have no idea if flashing an older or newer 4.4.2 modem on 4.4.2 firmware (like you want to do) will result in the same. Normally, I would guess it wouldn't be the case, but it seems a lot has changed in these new builds that no one understands, and there have already been too many bricks for me to be comfortable trying something new like this without exercising great caution.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

Thank you for your reply and your advise.
As I don't have enought money to take the risk, I will keep my actual modem.
Thank again

Don't blame you a bit! But don't forget, you can still fully update and that may help. (From what I've seen, flashing older modems on 4.4.2 doesn't brick, so i think if you updated, it should be ok to flash the NF1 modem if the newer one doesn't help. It might not work, but I don't think it would cause any harm. Just food for thought, but again, I can't guarantee anything with these latest modems...)
If it's a bad signal issue that you did not have before, call your carrier and ask if there are any tower/network/account issues they are aware of.
Your carrier probably doesn't do this, but Tmobile will sometimes give customers a signal booster for home use only. You can buy them online too, but I'm not sure how my h they are these days. (Just make sure it boosts the frequencies used by your carrier if you look into this.)
Sent from my SAMSUNG-SGH-I747 using Tapatalk

Just noticed today that my phone is on T999VVLUFNF1 but that there is a newer 4.4.2 release for the T999V phone that is T99VVLUFNH2. Would it be good to update via Odin to this? Is it just a newer modem?

I have a T mobile T999 that is currently flashed with CyanogenMod 11-20141008-SNAPSHOT-M11-d2lte which is kitkat 4.4.4. The baseband version is T999UVDMD5. I have a Lebara sim card in it now, and I'm in France. I'm not getting any signal and I suspect it is because the baseband version mismatch. Is there anything I can do to make this setup work or do I have to downgrade to a different version of CM? Is there and updated modem I can flash on this device or any way to make it work?

abetterlie said:
I have a T mobile T999 that is currently flashed with CyanogenMod 11-20141008-SNAPSHOT-M11-d2lte which is kitkat 4.4.4. The baseband version is T999UVDMD5. I have a Lebara sim card in it now, and I'm in France. I'm not getting any signal and I suspect it is because the baseband version mismatch. Is there anything I can do to make this setup work or do I have to downgrade to a different version of CM? Is there and updated modem I can flash on this device or any way to make it work?
Click to expand...
Click to collapse
Latest baseband is NC2, flash it, and if the device still does not pick up service flash back to MD5 firmware and see if it will pick it up. If not then it might incompatible with your provider..

Thanks!!!! Also Those using T999 switched to ATT
Just wanted to say thank you!!!
Also just wanted to say for those who have a T999 that switched to AT&T this works (I wasn't sure if this would work since it didn't say anything about AT&T working with it. To be perfectly honest I didn't read everything but again THANKS!!!!!!

Hi Guys,
I got the OTA update ( T999UVUENC2 ) about a month back and since then, my Wifi has stopped working. It stays greyed out when I try to turn it on. Just won't turn on.
The logcat says that the "WiFi driver is unstable".
What I have tried so far (with no success):
1) Flash the same build again (T999UVUENC2).
2) Flash the root666_T999UVUENC2 build. (Currently, I am on this)
3) Flash Cyanogenmod 11.
4) Factory reset.
5) Pull the battery out when the phone is on and put it back again.
6) Modify/delete the wpa_supplicant.conf file.
Can someone please give any directions on how the "Wifi driver can be fixed"? I understand from going through the forums that downgrading from 4.3 to 4.2 can cause a brick. However, can I downgrade to the previous T-Mobile 4.3 build (T999UVUEMJC ) without causing a brick? Do you guys think that can help fix the Wifi?
Any help would be greatly appreciated.

Could you point me to what one exactly i need for T999LUVUBNF4

SGH-T999L Will Not Mount Ext Sd/No root or load file from .zip to root
I always get stuck at the boot screen where I am supposed to Update from Zip, but my phone NEVER lets me Mount the External SD card, I have a 64GB card, failed, 16 GB card, failed, what am I missing. All the good tutorials, ESPECIALLY yours, get me to that point but being unable to load that .zip file from sd just murders me. The Phone is on 4.3 and I believe I loaded your stock 4.3 firmware after failing to get this part done and then trying every single rom possible (didn't realize this had murdered me) until I managed to get back to this stock rom. Why does it not want to load from ext sd? Is it the file system? I've never had any issues with any of these sd cards, and they aren't generic cards, one is a samsung other a sandisk,

upgrade to NF9 baseband form custom rom?

hey all, im not quite as active as i used to be, and ive been with W03 slim rom for about a year now with no change. but its been acting up lately so ive decided to go to stock. thing is, when i upgraded to 4.4 i remember something about not being to downgrade back to 4.3, as updating the bootloader was irreversible. can't find that info anywhere now, so my question to you is:
can I upgrade to the NF9 baseband from NB4 baseband with W03 slim v25? its 4.4.4. Is it as simple as using this guide? http://forum.xda-developers.com/showthread.php?t=2765014 i would download the effortless prep file and odin to Full Stock NF9. That will put me at regular old stock right? i wont have to worry about bootloops or bricks? i use my phone for work and cant lose it, but also cant continue on with the random reboots and data drops. and from there i could root and install, say, hyperdrive RLS5? thanks.

gerbetta33 said:
hey all, im not quite as active as i used to be, and ive been with W03 slim rom for about a year now with no change. but its been acting up lately so ive decided to go to stock. thing is, when i upgraded to 4.4 i remember something about not being to downgrade back to 4.3, as updating the bootloader was irreversible. can't find that info anywhere now, so my question to you is:
can I upgrade to the NF9 baseband from NB4 baseband with W03 slim v25? its 4.4.4. Is it as simple as using this guide? http://forum.xda-developers.com/showthread.php?t=2765014 i would download the effortless prep file and odin to Full Stock NF9. That will put me at regular old stock right? i wont have to worry about bootloops or bricks? i use my phone for work and cant lose it, but also cant continue on with the random reboots and data drops. and from there i could root and install, say, hyperdrive RLS5? thanks.
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Click to collapse
Yes