[Q] Flash From 4.4.4 to 4.2-4.3 Troubles - Nexus 4 Q&A, Help & Troubleshooting

When I attempt to flash back from a rooted stock 4.4.4 to 4.3 it takes a longer period of time for the phone to boot up, when it does I'm unable to get phone or wifi signal. I've tried 4.2.2 and the phone signal works but can't enable wifi. What else should I include doing after flashing the stock roms?
Current phone info if necessary:
Android version 4.4.4
Baseband Version M9615A-CEFWMAZM-2.0.1700.98
Kernel Version 3.4.0-perf-ga6edd5e
[email protected] #1
Build number KTU84P

For wifi/network activity you need to flash the corresponding radio of that android version aswell.
Newer radio's dont seem to work on older versions of android (eg. 4.4.4 radio on 4.3)

mumaster20 said:
For wifi/network activity you need to flash the corresponding radio of that android version aswell.
Newer radio's dont seem to work on older versions of android (eg. 4.4.4 radio on 4.3)
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Click to collapse
I've tried flashing radio .83 & .84, the wifi will work but no mobile signal and when I check the phone info it reads unknown under the baseband version.

Related

[Q] Difference between "Baseband Version" and "Build Number"

I have Froyo (motafoca's custom rom) installed on Galaxy 3 (I5801).
In Settings > About Phone following information is shown:
Baseband version: I5800xxJP4
Build Noumber: FROYO.XXJPF
What is the difference between both of these things?
Can Baseband Version be upgraded?
Baseband version means Radio version in the phone
anly11 said:
Baseband version means Radio version in the phone
Click to expand...
Click to collapse
So is it possible to update it?
When we update the ROM, or when we install a custom ROM, does this baseband version get updated?
baseband should updated if you will flash image in PHONE part in odin. if you are flashing custom rom then you do not flash this part. you flash PDA only. so radio and bootloader you usually dont flash.
flashing radio is allegedly only thing that can brick your phone.
in our galaxy 3 jpf rom we have baseband version I5800XXJP4. i think this is newest version. if not, somebody can correct me.
anly11 said:
baseband should updated if you will flash image in PHONE part in odin. if you are flashing custom rom then you do not flash this part. you flash PDA only. so radio and bootloader you usually dont flash.
flashing radio is allegedly only thing that can brick your phone.
in our galaxy 3 jpf rom we have baseband version I5800XXJP4. i think this is newest version. if not, somebody can correct me.
Click to expand...
Click to collapse
Its the bootloader that can brick your phone. Not the radio.
Sent from my Lestatious v1.2 Galaxy 3 FROYO
The Dark Lestat said:
Its the bootloader that can brick your phone. Not the radio.
Sent from my Lestatious v1.2 Galaxy 3 FROYO
Click to expand...
Click to collapse
But the changes in baseband version would improve/decrease radio preformance? what will happen if you replace new baseband version with an old one?

[Q] [Problem] Nexus 4 No audio Call

So i just receive my brand new Nexus 4, stock Android 4.2.2, baseband .48.
Everything works great except on calls i don't have any sound
What i already tried:
- reflash baseband .48
- flash stock rom 4.2.1 with baseband .33
- flash baseband .54
- apply this patch on 4.2.1 with baseband .33:
Code:
http://forum.xda-developers.com/showthread.php?t=2233319
Anyone was a suggestion of what to try to fix this before i send it back?
Edit: i don't care about LTE
tuning_xx said:
So i just receive my brand new Nexus 4, stock Android 4.2.2, baseband .48.
Everything works great except on calls i don't have any sound
What i already tried:
- reflash baseband .48
- flash stock rom 4.2.1 with baseband .33
- flash baseband .54
- apply this patch on 4.2.1 with baseband .33:
Code:
http://forum.xda-developers.com/showthread.php?t=2233319
Anyone was a suggestion of what to try to fix this before i send it back?
Edit: i don't care about LTE
Click to expand...
Click to collapse
Are you on a 4.2.2 rom or 4.2.1 rom? Because if your bootloader is from 4.2.2 image and your on 4.2.1, then theres your problem. You cant have a 4.2.1 rom with a 4.2.2 bootloader
I haved:
Firmware Version: 4.2.1
Firmware Build: JOP40D
Bootloader Version: MAKOZ10l
Before I was with 4.2.2 with the same issue.
I have the exact same issue, tried flashing radio 48 didnt work. Tried flashed google stock factory, didnt work.
I'm at 4.2.2
baseband 48
bootloader MAKOZ10o
Maybe i should just lock it and return it. Getting sick of this..
Go to the 4.2.2 boot loader. and try the .54 radio. If nothing I guess its rma....
Sent from my Nexus 4 using xda premium

I want to flash a rom, but my phone is from singapore

it is unlocked and current software:
I9505
4.2.2
baseband I9505DXUBMF8
build JDQ39.I9505XXUBMF8
if I flash android revolution rom, will i have any radio problems, and will it be able to work in the UK? do I need to flash a radio? or RIL??
mox123 said:
it is unlocked and current software:
I9505
4.2.2
baseband I9505DXUBMF8
build JDQ39.I9505XXUBMF8
if I flash android revolution rom, will i have any radio problems, and will it be able to work in the UK? do I need to flash a radio? or RIL??
Click to expand...
Click to collapse
I think as long as the ROMs you flashed is meant for the international version of S4, it should not be a problem.

[Q] Baseband downgrade

hi,
currently running a 4.4 based purity rom.
while flashing miui v5 and older 4.3 based custom roms, was unable to get wifi, blue tooth and sound working.
understand this is a problem due to the radio/ baseband and i need to have a 4.2/4.3 baseband for this to work without problem.
is it possible to directly flash only the .84 baseband image in 4.4 via twrp?
if suppose i face problems after downgrading the baseband, can i upgrade back to the original radio/baseband by directly flashing only the newer baseband?
or would i need to go all the way back to install 4.3 factory image to get the .84 radio?
thanks in advance for your help.
Flash what you want in recovery and be done. There is no special process to do this.
Yes you can go ahead flash .84 image. If you encounter any problem; flashing back 4.4 baseband will fix the problem. You can flash back and forth with no problem.
Sent from my Nexus 4 using Tapatalk
many thanks!!
Nexus 4 Baseband collection : http://forum.xda-developers.com/showthread.php?t=2087227

[Q] TMO using AT&T I337

What I have:
Model number: Samsung SGH-I337
Baseband Version: I337UCUFNC1
Build Number: KOT49H.I337UCUFNC1
Android Version: 4.4.2 at&t
Security software version: MDF v1.0 Release 2
Safestrap loaded and working, Rooted and busybox installed. SIM umlocked using tmo sim now. Safestrap backed up.
What I need help with:
Be able to flash a tmo rom that has working wifi calling either 4.4.2 or 4.4.4, Rooted stock type rom ok. Tried flashing a few roms but got boot loops or no wifi, had to restore at&t rom from safestrap backup. Need help to find out if flashing new baseband will keep tmo bands. What basebands can be used or modified for tmo bands. What Rom can I use with what baseband? No problem using odin also if needed. Tried searching for 2 +days. many answers alluded to but not clearly, thanks for looking.
http://forum.xda-developers.com/galaxy-s4-att/general/convert-i337-to-m919-wifi-caling-t2896719
thank you i will try and solve
bill g.
worked solved

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