Galaxy S6 Edge G925W8 New Stock Build Not letting back to previous Stock Build - Galaxy S6 Edge Q&A, Help & Troubleshooting

Hi all,
the new build for G925W8 is out MM. G925W8VLU5CPI4 and it messed up the bootloader and modem/radio. its working fine but i want to downgrade back to MM. G925W8VLU4CPG5 which the new build replaced. but now when i odin the old build baesband goes missing and no network signal. then i flashed the modem from new build and baseband and network came back........my question is why modem/radio from pg5 build is not working anymore? how can I make it work? i flashed it and also other older modems many times with clean installs and none is working no baseband. your help would be greatly appreciated. thanks

kma221 said:
Hi all,
the new build for G925W8 is out MM. G925W8VLU5CPI4 and it messed up the bootloader and modem/radio. its working fine but i want to downgrade back to MM. G925W8VLU4CPG5 which the new build replaced. but now when i odin the old build baesband goes missing and no network signal. then i flashed the modem from new build and baseband and network came back........my question is why modem/radio from pg5 build is not working anymore? how can I make it work? i flashed it and also other older modems many times with clean installs and none is working no baseband. your help would be greatly appreciated. thanks
Click to expand...
Click to collapse
Because once you upgrade your firmware you can no longer downgrade. So when you flashed 5CPI4 you can only flash firmware that is 5xxxx. You can not downgrade to 4xxxx firmware. They have different modems and bootloaders.

Related

[Q]Baseband issues? How to flash different baseband?

Since I flashed my phone with the new version of Lightning which is a modified version of the stock ROM XXKH3, it came with the matching new Baseband version I9100XXKH3.
Since I installed the new version, my packet switching mode on the phone (ie internet only, phone function works) keeps dropping on me at random and only a full restart of the phone fixes it.
A friend suggested that my phone may not like the new Baseband version and I should flash it to a older version.
Might this resolve the issue? and if so, where can I get just baseband files to flash instead of full stock roms?
My original stock firmware was MUGKG2
Please advise, thanks in advance.
Modems
http://forum.xda-developers.com/showthread.php?t=1131950
jje
Thanks for the info
From that post I also found http://forum.xda-developers.com/showthread.php?t=1193695&highlight=modem which is the exact modem my phone originally came with.
Seems the key is knowing the right terminology for some things. I was searching for baseband and radio when I should have searched for 'modem'.
I'll try flashing the old modem back and see if it fixes my issues.

New baseband no signal problem

I just updated to new baseband, I flashed several NewBB roms, and there is no signal for any of them. When I first finished updating my new baseband, I had signal and data on the stock t-mobile rom. I checked settings, and the android version is 2.3.7 but the baseband version is unknown. If I can't find a solution to this, can someone give me a flashable zip version of t-mobile stock rom, (or any other stock rom) Please help, because I was so excited to explore newbb roms.
shadow6600 said:
I just updated to new baseband, I flashed several NewBB roms, and there is no signal for any of them. When I first finished updating my new baseband, I had signal and data on the stock t-mobile rom. I checked settings, and the android version is 2.3.7 but the baseband version is unknown. If I can't find a solution to this, can someone give me a flashable zip version of t-mobile stock rom, (or any other stock rom) Please help, because I was so excited to explore newbb roms.
Click to expand...
Click to collapse
Refer to http://forum.xda-developers.com/showthread.php?t=1149530 post for all your answer.
Regards,
(Press thanks if i helped)

Need help flashing a ROM

I have a rooted Verizon Galaxy S4 with a T-Mobile SIM card and running on baseband version MI1.
I want to flash a ROM on it that works perfectly with T-Mobile, so I could get full 4g and everything.
What I'm confused about is what I would have to do first. Update to the latest version first then flash a ROM? Or can I just flash a ROM on the current version.
Any help is appreciated, thanks.

How to update At&t s6 edge?

Hi guys, i am a new member and i hope i am in the right section.
I need some help on how to update my device , i am currently on 5.1.1 (rooted).
Model number : SM-G925A
Baseband version : G925AUCU3BOI2
On my device it says that i have the latest version but i want to update to marshmallow or nougat.
Thanks
P.S Some detailed help would be appreciated because i have little knowledge about android.
lunaso said:
Hi guys, i am a new member and i hope i am in the right section.
I need some help on how to update my device , i am currently on 5.1.1 (rooted).
Model number : SM-G925A
Baseband version : G925AUCU3BOI2
On my device it says that i have the latest version but i want to update to marshmallow or nougat.
Thanks
P.S Some detailed help would be appreciated because i have little knowledge about android.
Click to expand...
Click to collapse
The reason it says your on the latest firmware is because you are rooted. At&t firmware is hard to come by as they lock the bootloader and device down. If you are not bothered about root flash stock firmware and you can uodate OTA.
I have the same problem except that my phone is not rooted, im on stock AT&T Android 5, but it still says i have the latest firmware.
Someone told me that it has to be connected to AT&T cell towers to find the update but even that didn't work for me.
alireza_simkesh said:
I have the same problem except that my phone is not rooted, im on stock AT&T Android 5, but it still says i have the latest firmware.
Someone told me that it has to be connected to AT&T cell towers to find the update but even that didn't work for me.
Click to expand...
Click to collapse
I will give it a shot but first i need to find the stock firmware because its hard to find for my device specifications, and i will let you know if it worked for me
Edit: flashing the stock firmware locks phone to only at&t network since i use different network i will not try to update it

[HELP] 925I updated to 7.0... no network connectivity

Hello!
I just updated my 925I (Mexico-Telcel) from MM to N and found out that after that I get no carrier connectivity, wifi works fine. Update was done through smart switch and noticed that imei doesn't match with the one on the back of the phone.
I've always tinkered with my phones and the one time I didn't, it bit me in the ass.
Anyway,
Baseband version is G925IDVU3FQF3
Build Number is NRD90M.G925IDVU3FQF7
I've been reading and reading but so far, I don't know if I can flash an unbloated version (925F) or not or if I can flash only the MM modem in hopes for the problem to be solved.
Any advice will be appreciated.

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