How to downgrade from 4.4.2 to 4.3? - Nexus 4 Q&A, Help & Troubleshooting

I would like to downgrade from KitKat to Jelly Bean. How can I do so? I have tried flashing CM 10.2, but I didn't have service. Has Google done something with 4.4, like change something with the radio/baseband? If so, how can I revert it so I can go back to 4.3?

Does anybody know?

no. i have gone back and forth between jellybean and kitkat without issue, but i stay as far as i can from cm. i just flashed a different aosp jellybean and aosp kitkat roms without issue. for you, wipe data and flash a jellybean cm and gapps.

simms22 said:
no. i have gone back and forth between jellybean and kitkat without issue, but i stay as far as i can from cm. i just flashed a different aosp jellybean and aosp kitkat roms without issue. for you, wipe data and flash a jellybean cm and gapps.
Click to expand...
Click to collapse
That's what I tried before, but I guess I'll try it again. I'll report the results asap.

So I have it flashed. I booted, and I do indeed have service, but now the WiFi won't turn on... how do I fix this?

OrbitGum22 said:
So I have it flashed. I booted, and I do indeed have service, but now the WiFi won't turn on... how do I fix this?
Click to expand...
Click to collapse
weird. have you rebooted? what did you flash? and maybe it had a wifi issue? try flashing an older radio. im using an older radio, the hacked/modified .33 radio.

simms22 said:
weird. have you rebooted? what did you flash? and maybe it had a wifi issue? try flashing an older radio. im using an older radio, the hacked/modified .33 radio.
Click to expand...
Click to collapse
I rebooted twice, and I flashed cm-10.2.1-mako. I have no idea where to find an older radio.. could you link me to it?
EDIT: I found a .03/.33/.03 hybrid radio, flashed it, and WiFi works now thanks for your help!

OrbitGum22 said:
I rebooted twice, and I flashed cm-10.2.1-mako. I have no idea where to find an older radio.. could you link me to it?
EDIT: I found a .03/.33/.03 hybrid radio, flashed it, and WiFi works now thanks for your help!
Click to expand...
Click to collapse
sweet

Related

Could not install ROM on safestrap ROM slot

I installed safestrap 3.6 as explained in http://forum.xda-developers.com/showthread.php?t=2448942
Everything worked fine, created a new slot with 3Gbyte size. However, I could ntot get custom ROM installed there. I copied ROM .zip file (CARBON-JB-1.8-jflteatt.zip) to internal SD card + gapps -jb-20130813-signed.zip. Got "installation completed" message for both ZIPs, and then :
Updating partition details...
E: Unable to mount internal storage. Got green "Successful" message under the window where all log messages were running.
Then when rebooting with newly-flashed ROM slot, the phone does not boot, it is stuck with back screen and the only way to get it back to life is to power-cycle it and boot into stock ROM slot.
Any idea what went wrong?
Phone details:
Model: SAMSUNG-SGH-I337
Android 4.2.2
Baseband version - I337UCUAMF3
Kernel version 3.4.0-812098
Thanks,
Carbon is not tw based. Only touch wiz based roms will work.
I think the only aosp ROM that works is GPE 4.2.2 try that. But check its compatibility first
Sent from my Samsung Galaxy S4 (SGH-i337) via Tapatalk 4
all the google edition roms work with safestrap as far as I know, I've tested most of them. if it's one from another carrier the most you have to change are the apn settings. I'll be testing VirginROM later.
http://forum.xda-developers.com/showthread.php?t=2341376
http://forum.xda-developers.com/showthread.php?t=2356276
Just to be clear for OP
Google Edition (GE) roms are Touch Wiz---
Did not manage to turn WiFi on
deadenz said:
all the google edition roms work with safestrap as far as I know, I've tested most of them. if it's one from another carrier the most you have to change are the apn settings. I'll be testing VirginROM later.
http://forum.xda-developers.com/showthread.php?t=2341376
http://forum.xda-developers.com/showthread.php?t=2356276
Click to expand...
Click to collapse
thanks for the reply.
Tried ge4.2.2clean-20130907.zip, but it did not manage to turn WiFi during sign-in process.
Tried ge4.3clean-20130907.zip, this one did not boot at all.
Any tip? thanks
michaelkagan said:
thanks for the reply.
Tried ge4.2.2clean-20130907.zip, but it did not manage to turn WiFi during sign-in process.
Tried ge4.3clean-20130907.zip, this one did not boot at all.
Any tip? thanks
Click to expand...
Click to collapse
on the first boot of installing any rom, I always skip the initial setup. wait until the rom has booted first then add your google account and setup wifi and 4.3 roms are not compatible with safestrap
If you want a good GE 4.3 ROM, try this one:
http://forum.xda-developers.com/showthread.php?t=2395030
That's what I use as my daily driver. It works great, and is an untouched 4.3 GE ROM, except for the kernel. You can customize it yourself if you want before you install it.
chocodough said:
If you want a good GE 4.3 ROM, try this one:
http://forum.xda-developers.com/showthread.php?t=2395030
That's what I use as my daily driver. It works great, and is an untouched 4.3 GE ROM, except for the kernel. You can customize it yourself if you want before you install it.
Click to expand...
Click to collapse
4.3 roms don't work with safestrap.
It's been my understanding GE ones are TW based--
Got that from playing with KT's kernels
Maybe I am wrong--
rugmankc said:
It's been my understanding GE ones are TW based--
Got that from playing with KT's kernels
Maybe I am wrong--
Click to expand...
Click to collapse
Pretty sure you are right, I haven't installed a GE rom that hasn't worked yet
deadenz said:
Pretty sure you are right, I haven't installed a GE rom that hasn't worked yet
Click to expand...
Click to collapse
Currently only TouchWiz and GE 4.2.2 roms work. I tried GE 4.3 and it wouldn't turn on. Hopefully within the next week at&t treats us with a cookie and release 4.3 update.
DrXTC said:
Currently only TouchWiz and GE 4.2.2 roms work. I tried GE 4.3 and it wouldn't turn on. Hopefully within the next week at&t treats us with a cookie and release 4.3 update.
Click to expand...
Click to collapse
That's good info, didn't think about it stopping with 4.2.2--
chocodough said:
If you want a good GE 4.3 ROM, try this one:
http://forum.xda-developers.com/showthread.php?t=2395030
That's what I use as my daily driver. It works great, and is an untouched 4.3 GE ROM, except for the kernel. You can customize it yourself if you want before you install it.
Click to expand...
Click to collapse
It seems like this is ROM for i9505, my phone is i9500. WIll it work?
thanks,
Still could not make wifi work
deadenz said:
on the first boot of installing any rom, I always skip the initial setup. wait until the rom has booted first then add your google account and setup wifi and 4.3 roms are not compatible with safestrap
Click to expand...
Click to collapse
Tried to skip initial setup, but still WiFi would not turn on. Tried with ge4.2.2clean-20130907.zip
Any hint?
michaelkagan said:
Tried to skip initial setup, but still WiFi would not turn on. Tried with ge4.2.2clean-20130907.zip
Any hint?
Click to expand...
Click to collapse
did you flash the mf3 kernel module after you installed the rom?
You might get a lot more help here
Official AT&T S4 Safestrap Discussion Q/A
deadenz said:
did you flash the mf3 kernel module after you installed the rom?
Click to expand...
Click to collapse
No, I did not flash kernel, just installed ROM. SHould I flash kernel?
michaelkagan said:
No, I did not flash kernel, just installed ROM. SHould I flash kernel?
Click to expand...
Click to collapse
no. you should stop everything that you're doing and READ before you do anything else
http://forum.xda-developers.com/showthread.php?t=2428254
http://forum.xda-developers.com/showthread.php?t=2448925
http://blog.hash-of-codes.com/how-to-safestrap/
deadenz said:
no. you should stop everything that you're doing and READ before you do anything else
http://forum.xda-developers.com/showthread.php?t=2428254
http://forum.xda-developers.com/showthread.php?t=2448925
http://blog.hash-of-codes.com/how-to-safestrap/
Click to expand...
Click to collapse
thanks for the pointers.

[Q] Installing PA 3+ get Baseband Unknown. No service.

Hi All,
First post ever on xda Hope this thread is where it should and nobody posted something similar (I checked)
I'm running 4.3 JWR66Y and everytime I try to install Paranoid Android 3+ (pa_mako-3.99-RC2-20130920 or pa_mako-3.93-20130805)I get a NO SERVICE and UNKNOWN BASEBAND.
I do a factory reset, I have the latest radio and bootloader, install ROM and GAPPS, wipe cache, dalvik, reboot and the result is always the same. Wifi works, but there's no baseband and no network.
I backed up and I restored back to stock 4.3, rooted, and everything works fine without the PA.
Does anyone have/had the same problem, or know how to fix this ?
Should I downgrade to 4.2.2 ? (I get annoyed with the "there's a new system update bla bla")
thank you and hopefully someone can help me out.
thanks!
Fede from Argentina.
flavista said:
Hi All,
First post ever on xda Hope this thread is where it should and nobody posted something similar (I checked)
I'm running 4.3 JWR66Y and everytime I try to install Paranoid Android 3+ (pa_mako-3.99-RC2-20130920 or pa_mako-3.93-20130805)I get a NO SERVICE and UNKNOWN BASEBAND.
I do a factory reset, I have the latest radio and bootloader, install ROM and GAPPS, wipe cache, dalvik, reboot and the result is always the same. Wifi works, but there's no baseband and no network.
I backed up and I restored back to stock 4.3, rooted, and everything works fine without the PA.
Does anyone have/had the same problem, or know how to fix this ?
Should I downgrade to 4.2.2 ? (I get annoyed with the "there's a new system update bla bla")
thank you and hopefully someone can help me out.
thanks!
Fede from Argentina.
Click to expand...
Click to collapse
Did u try to flash the baseband AFTER flashing PA rom?
luiseteyo said:
Did u try to flash the baseband AFTER flashing PA rom?
Click to expand...
Click to collapse
Yeap, already tried that. I think I tried every combination... I still don't know how I didn't brick the phone already...haha
flavista said:
Yeap, already tried that. I think I tried every combination... I still don't know how I didn't brick the phone already...haha
Click to expand...
Click to collapse
i saw somewhere that lastest cwm / twrp are causing issues , try with different versions(like if not on lastest update it or vice versa) or use philz cwm or multi rom twrp.

[HELP] i9505 data dropping

Hello guys.
I have a i9505 and it was running perfectly coolboy 4.3 GPE rom in old bootloader.
Then, I wanted to flash the brand new Jamal`s 4.4 GPE. And for that it was needed to upgrade my firmware to the last ML6 BL (Knox 0x1, but i dont really care about warranty). I flashed a MKE full package using odin, after I flashed ML6 modem using odin too, then Philz touch CWM and in the last the zip 4.4 rom.
It was fine, but i wanted to revert to 4.3 Rom because i didnt really like kitkat. and now my problem starts......
i flashed MKE stock package again, philz touch and then 4.3 GPE zip that was previously installed. After all this.. Everything works wonderfully, but the data.... it keeps dropping all the time! I tried everything... flashed ML6 firmware, ML6 modem, 4.4 Rom again, MKE stock again... nothing fixed.
To use data, i need to turn airplane on and off, but after sometime it drops again. When I select "only 2G network" it works fine too... but when 3G or LTE, it drops constantly...
Please, anyone have a suggestion... I really apreciate.!
Thanks in advance.
I had similar problems with coolboy's 4.3 GPE, the data just would not stick to "on", even on 2G. So I decided to flash Jamal's 4.3, and everything was great, on the very same modem! So I would suggest you to try that! Though it doesn't really explain anything! :silly:
Nawfil Nibir Neel said:
I had similar problems with coolboy's 4.3 GPE, the data just would not stick to "on", even on 2G. So I decided to flash Jamal's 4.3, and everything was great, on the very same modem! So I would suggest you to try that! Though it doesn't really explain anything! :silly:
Click to expand...
Click to collapse
thank you... but i can observe the problem running all kind of rom. I tried stock frimware, 4.3 coolboy rom, 4.4 jamals rom, CM11 rom, AOSP...
i dont think its related to any of them. maybe it is because of flashing modems and firmwares using odin.
Did you ever try to downgrade your modem? If not, then I don't see why installing latest stock ROM+Modem should not fix this!
Nawfil Nibir Neel said:
Did you ever try to downgrade your modem? If not, then I don't see why installing latest stock ROM+Modem should not fix this!
Click to expand...
Click to collapse
Nope. ... I did not try this....
I dont see that either. Im used to do these flashing stuff. This is my fourth samsung phone, and i had never seen something that even a pure firmware flash didnt solved.
I looked for something related to knox triggered. But i didnt find anything that could blame knox for this.
Enviado de meu GT-I9505 usando Tapatalk

[Q] c11 roms baseband unknown

I recently flashed the temasek and official CM11 roms, but the baseband has been unknown since.
So I had flash back to the original rom that I was using, my QUESTION is that I like cm11 alot, so how can i fix this problem?
Which Note model? -- N9005 or N9005 variant? -
T/w8 ?
Which recovery do you use?
radicalisto said:
Which Note model? -- N9005 or N9005 variant? -
T/w8 ?
Which recovery do you use?
Click to expand...
Click to collapse
It is actually N9006 but temasek's v45 for n9005 and earlier worked fine, I am using CWM rec.
Until recently, temasek's v46 and 47, the baseband becomes unknown
Last time a user had that issue, he fixed it by flashing stock via odin and then CM but he was using a n9005 so I am not sure if that will work for you as well...However no harm in trying.
Sent From My SM-N9005 To All You Wonder Nobodies!!
Khizar said:
Last time a user had that issue, he fixed it by flashing stock via odin and then CM but he was using a n9005 so I am not sure if that will work for you as well...However no harm in trying.
Sent From My SM-N9005 To All You Wonder Nobodies!!
Click to expand...
Click to collapse
I'm sorry but I speak poor English. What is a Stock? I've tried flashing kernel and baseband but it did not work.
When I use Temasek's v45, it shows that my baseband is ML1, but when I use further version, it becomes unknown.
Stock is your original Samsung ROM
Sent from my CM11 Kitkat powered N9005
radicalisto said:
Stock is your original Samsung ROM
Sent from my CM11 Kitkat powered N9005
Click to expand...
Click to collapse
ok i see, i tought it was sth like baseband or kernel or sth else.
I just flashed a n9006 rom made by chinese romers to get my note mp4 into a note3, or i could just use temasek's v45.
I just wanna use the latest cm11 rom but it seems that it's not quite possible for now, so i'll just stick to my original rom...
radicalisto said:
Stock is your original Samsung ROM
Sent from my CM11 Kitkat powered N9005
Click to expand...
Click to collapse
are there kernels and basebands that don't match, i mean they just don't work when put together?
I actually got to a similar problem, after some cyanogenmod update I suddenly got no cellular service at all signal strength stuck on -120db and its stuck on searching for service, flashing older versions, wipes, all did nothing
qlum said:
I actually got to a similar problem, after some cyanogenmod update I suddenly got no cellular service at all signal strength stuck on -120db and its stuck on searching for service, flashing older versions, wipes, all did nothing
Click to expand...
Click to collapse
We have probably same issue
Aditmac1 said:
We have probably same issue
Click to expand...
Click to collapse
I am going to try flashing back to stock tonight, I will report back if it works.
qlum said:
I am going to try flashing back to stock tonight, I will report back if it works.
Click to expand...
Click to collapse
it worked for me though
It also worked for me although sadly I could not use my backup again after flashing back to cyanogenemod so its time to start downloading. At least my phone is fully functional now, even if I lost a bit of data.
I had the same issue move than once, i would lose imei number etc.
Found out that it wasn't prompting for pin unlock on boot.
Since removing this I've had no problems
Yea it also wasn't prompting for ping with mine.
Though starting again fresh does work, I am currently again on the latest nightlies. however if this happens again I will probably wait for a stable release because having to reinstall everything is not really desirable.
qlum said:
Yea it also wasn't prompting for ping with mine.
Though starting again fresh does work, I am currently again on the latest nightlies. however if this happens again I will probably wait for a stable release because having to reinstall everything is not really desirable.
Click to expand...
Click to collapse
it is rather annoying to reinstall everything,even with kies
I didn't even use kies nor any other tool like that.

No IMEI, Baseband,and Signal after Downgrading to Stock KK

So I had DarkLord N5 on my N9005 before, which was awesome, but it had performance issues (especially when gaming). Then i downgraded to Stock KitKat using Odin and after boot up It showed No Signal, and everything was freezing and force closing. I somehow went to settings and found that i also have issues with IMEI and Baseband version, it was all unknown. The worst part is i did not backup my EFS. Any help guys please :crying:
I also have no audio playback
Im no pro here, but as i found in my research it is hard to downgrade from lolipop to kitkat as in 5.0 new architecture has been presented which they called art. I think. So it gives lots of incompatibilities. I tried the same as you but i ended up going stock lolipop for a while.
Yesterday i flashed Ressurrection remix 6.0.1 Marshmallow based off Slim roms and CM and i admit this is so far best rom i have tested. (Unless you need all fancy spen features)
I'd try to stick to anything that is 5.1 or above since great battery life.
Sorry for not much info, but i couldn't get past your post unanswered.
oxoconstantineoxo said:
Im no pro here, but as i found in my research it is hard to downgrade from lolipop to kitkat as in 5.0 new architecture has been presented which they called art. I think. So it gives lots of incompatibilities. I tried the same as you but i ended up going stock lolipop for a while.
Yesterday i flashed Ressurrection remix 6.0.1 Marshmallow based off Slim roms and CM and i admit this is so far best rom i have tested. (Unless you need all fancy spen features)
I'd try to stick to anything that is 5.1 or above since great battery life.
Sorry for not much info, but i couldn't get past your post unanswered.
Click to expand...
Click to collapse
I had many experiences with downgrading from new version to old version with my S3 and my Note, but never had this issue. Something is causing this...
founded a old backup of CM11.. Flashed CWM and restored to CM. Works flawlessly, but still no sound and those stuff
Honix5962 said:
I had many experiences with downgrading from new version to old version with my S3 and my Note, but never had this issue. Something is causing this...
Click to expand...
Click to collapse
So i had problems with my either s2 or note 4.
But afaik if u have updated your bootloader there may be no way to get back. And lack of IMEI on reverted KitKat isn't anything new. I bet going simply to anything art. Based will do.
People here are arguing on same issues as yours. Just don't listen to these "flash with odin" guys.. This doesn't work. Even if u flash the stock one.
http://forum.xda-developers.com/gal...o-downgrade-lollipop-to-kitkat-t2990262/page2
Hope you will dig up something.
You could try this. It worked for me.
http://forum.xda-developers.com/showthread.php?t=2507403
Have you tried flashing to the latest stock rom for the phone using Odin?
audit13 said:
Have you tried flashing to the latest stock rom for the phone using Odin?
Click to expand...
Click to collapse
Nope, I downloaded the KitKat firmware from Sammobile, and I'm downloading the Lollipop one now.
deejhay14 said:
You could try this. It worked for me.
http://forum.xda-developers.com/showthread.php?t=2507403
Click to expand...
Click to collapse
I tried it, but still no use :c
I would not try any other ROMs before trying to flash the latest stock rom from sammobile.com. Hopefully, this will resolve the baseband and imei issue. Sometimes, the missing or wrong imei is caused by a mismatch between the bootloader and modem firmware.
audit13 said:
I would not try any other ROMs before trying to flash the latest stock rom from sammobile.com. Hopefully, this will resolve the baseband and imei issue. Sometimes, the missing or wrong imei is caused by a mismatch between the bootloader and modem firmware.
Click to expand...
Click to collapse
I hope so.
I have seen this sort of problem on the Samsung s3 and note 3 phones.
audit13 said:
I have seen this sort of problem on the Samsung s3 and note 3 phones.
Click to expand...
Click to collapse
I did downgrading from 5.0 (CM12) to Stock 4.4 KitKat in my S3, but never had issues like this.
Downgrading from a cm rom to a stock rom via Odin can be fine because installing a cm rom does NOT alter the phone's bootloader or modem. Trying to downgrade from stock 4.4.2 to stock 4.3 with Odin on an s3 cannot be done.
audit13 said:
Downgrading from a cm rom to a stock rom via Odin can be fine because installing a cm rom does alter the phone's bootloader or modem. Trying to downgrade from stock 4.4.2 to stock 4.3 with Odin on an s3 cannot be done.
Click to expand...
Click to collapse
Oh, never knew about this, thanks for the info
Sorry, I meant to say that installing a cm rom DOES NOT change the bootloader or modem. When you flash back to stock via Odin, you are simply writing over the existing modem and bootloader with the same bootloader and modem if you are flashing the same stock rom that was on the phone before installing cm.
I flashed between KitKat and LP official just fine.
audit13 said:
Have you tried flashing to the latest stock rom for the phone using Odin?
Click to expand...
Click to collapse
Never mind, It works. Thanks for the help.
Which method worked? Thanks.
Use gsii repair

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