[Q] Trying to downgrade to 4.2.2 from 4.4.2 - Galaxy S 4 Q&A, Help & Troubleshooting

SPH-L720
MF9
Ok, you must be wondering why the heck anyone would want to downgrade from 4.4.2. Well I had one noob moment and a couple of unfortunate coincidences. I haphazardly flashed a rom for an I9505g onto my phone. Luckly I can still boot up and connect to my wifi. If I turn the airplane mode off then the phone goes haywire. Im sure that isnt fixable.
My difficulty is finding a stock 4.2.2 ROM to flash.
I would just flash the recovery i have, but, it somehow is corrupt and sends my phone into a bootloop so i have to reflash the 4.4.2 again to get anything to work. Really, i think all i need is a link to get me going in the right direction for the files i need. If anyone could hook me up i'd really appreciate it.

misterican said:
SPH-L720
MF9
Ok, you must be wondering why the heck anyone would want to downgrade from 4.4.2. Well I had one noob moment and a couple of unfortunate coincidences. I haphazardly flashed a rom for an I9505g onto my phone. Luckly I can still boot up and connect to my wifi. If I turn the airplane mode off then the phone goes haywire. Im sure that isnt fixable.
My difficulty is finding a stock 4.2.2 ROM to flash.
I would just flash the recovery i have, but, it somehow is corrupt and sends my phone into a bootloop so i have to reflash the 4.4.2 again to get anything to work. Really, i think all i need is a link to get me going in the right direction for the files i need. If anyone could hook me up i'd really appreciate it.
Click to expand...
Click to collapse
You are looking for 4.2.2?
When I was looking I found in
androidhilfe de
4pda
and Filecrop search
but my phone is I9505 I'm not sure whether your model but try

s4lte100 said:
You are looking for 4.2.2?
When I was looking I found in
androidhilfe de
4pda
and Filecrop search
but my phone is I9505 I'm not sure whether your model but try
Click to expand...
Click to collapse
Unfortunately, my phone is an sph-l720. It being a german site they dont even mention my model anywhere on that site.

misterican said:
Unfortunately, my phone is an sph-l720. It being a german site they dont even mention my model anywhere on that site.
Click to expand...
Click to collapse
here in xda will not?
Google it has everything - you just have to browse

You can't downgrade from 4.4 to any lower versions. Read forums...
[email protected]

misterican said:
SPH-L720
MF9
Ok, you must be wondering why the heck anyone would want to downgrade from 4.4.2. Well I had one noob moment and a couple of unfortunate coincidences. I haphazardly flashed a rom for an I9505g onto my phone. Luckly I can still boot up and connect to my wifi. If I turn the airplane mode off then the phone goes haywire. Im sure that isnt fixable.
My difficulty is finding a stock 4.2.2 ROM to flash.
I would just flash the recovery i have, but, it somehow is corrupt and sends my phone into a bootloop so i have to reflash the 4.4.2 again to get anything to work. Really, i think all i need is a link to get me going in the right direction for the files i need. If anyone could hook me up i'd really appreciate it.
Click to expand...
Click to collapse
Wipe all and flash again android 4.4.2 for ur phone -> HERE. Dont play with fire....

radkor said:
You can't downgrade from 4.4 to any lower versions. Read forums...
[email protected]
Click to expand...
Click to collapse
But I've Downgraded Many time from kitkat to JB4.3 without any problem

Aaah, I see. You're on stock 4.2.2 and you've flashed 4.4.2 without flashing bootloader?
I thought you were on full stoc 4.4.2 with Knoxed BL.
[email protected]

Related

[Q] Galaxy S4 Root

I rooted my AT&T Galaxy S4 i337 a while back using Motochopper and it worked absolutely fine. After installing Cyanogenmod, I decided to go back to stock. I used triangle away and Odin to return myself back to stock, however, I always had issues. When I would recovery boot, I got an error and I couldn't wipe my cache partition. I tried to re-root my phone today using Motochopper and then Odin, but neither of them worked. I got a fail on both of them. Motochopper installed Supersu on my device, but didn't actually give me root access, and Odin just gave me a fail. Now, my phone is working with stock, but I still get errors in recovery mode and I can't root. Can someone please help!?
What is your baseband and build number on settings, more, about phone?
jd1639 said:
What is your baseband and build number on settings, more, about phone?
Click to expand...
Click to collapse
Baseband - I337UCUAMF3
Build Number - JDQ39.I337UCUAMF3
I
cfoughty7 said:
Baseband - I337UCUAMF3
Build Number - JDQ39.I337UCUAMF3
Click to expand...
Click to collapse
That's what i was afraid of. With mf3 you can't root with motorchopper or flash roms like you could on mdl. You also can't put on a custom recovery. Give me a second and I'll give you some links.
http://forum.xda-developers.com/showthread.php?p=44165374
http://forum.xda-developers.com/showthread.php?p=42478710
http://forum.xda-developers.com/showthread.php?p=45186518
http://forum.xda-developers.com/showthread.php?p=45971194
Read these before you do anything else and get familiar with them.
cfoughty7 said:
Baseband - I337UCUAMF3
Build Number - JDQ39.I337UCUAMF3
Click to expand...
Click to collapse
MF3 has a completely different root and recovery method now. Search the threads and you'll find them. Unfortunately it's pretty risky as you won't be able to flash back to stock using ODIN on MF3.
Sent from my Samsung Galaxy S4 (SGH-i337) via Tapatalk 4
jd1639 said:
I
That's what i was afraid of. With mf3 you can't root with motorchopper or flash roms like you could on mdl. You also can't put on a custom recovery. Give me a second and I'll give you some links.
http://forum.xda-developers.com/showthread.php?p=44165374
http://forum.xda-developers.com/showthread.php?p=42478710
http://forum.xda-developers.com/showthread.php?p=45186518
http://forum.xda-developers.com/showthread.php?p=45971194
Read these before you do anything else and get familiar with them.
Click to expand...
Click to collapse
I'm just confused as to why I was able to do it perfectly before?
cfoughty7 said:
I'm just confused as to why I was able to do it perfectly before?
Click to expand...
Click to collapse
Because you were on mdl firmware. After you Odin'd it had to have taken the ota update to mf3.
shall plyinuf
jd1639 said:
Because you were on mdl firmware. After you Odin'd it had to have taken the ota update to mf3.
Click to expand...
Click to collapse
Ohhh, ok. I understand! There's no way to get it back? Is that what I should read those links for?
cfoughty7 said:
Ohhh, ok. I understand! There's no way to get it back? Is that what I should read those links for?
Click to expand...
Click to collapse
Ok, so I read the links. Now, I'm not so much interested in rooting as I am getting my phone straight. Is there any way to get back to mdl? Will the rumored 4.3 update this month fix that? When I tried to update or recover with Samsung Kies, it said my phone wasn't compatible to recover. Does that mean I won't be able to get the update?
jd1639 said:
Because you were on mdl firmware. After you Odin'd it had to have taken the ota update to mf3.
Click to expand...
Click to collapse
Ok, so I read the links. Now, I'm not so much interested in rooting as I am getting my phone straight. Is there any way to get back to mdl? Will the rumored 4.3 update this month fix that? When I tried to update or recover with Samsung Kies, it said my phone wasn't compatible to recover. Does that mean I won't be able to get the update?
cfoughty7 said:
Ok, so I read the links. Now, I'm not so much interested in rooting as I am getting my phone straight. Is there any way to get back to mdl? Will the rumored 4.3 update this month fix that? When I tried to update or recover with Samsung Kies, it said my phone wasn't compatible to recover. Does that mean I won't be able to get the update?
Click to expand...
Click to collapse
First, there is no way to go back to mdl. Idk if you'll be able to get the 4.3 update but I would assume so since you are on the stick firmware now. But, each new update is going to make it harder to root your phone or run custom roms. So you probably need to choose whether you want to keep your phone stock and take updates if and when they come out. Or have some snooty to run custom roms and root your device and put safestrap on.
jd1639 said:
First, there is no way to go back to mdl. Idk if you'll be able to get the 4.3 update but I would assume so since you are on the stick firmware now. But, each new update is going to make it harder to root your phone or run custom roms. So you probably need to choose whether you want to keep your phone stock and take updates if and when they come out. Or have some snooty to run custom roms and root your device and put safestrap on.
Click to expand...
Click to collapse
I'm going to stay with stock. Will the mdl thing effect anything if I have an issue with warranty sterf?
Shouldn't, your stock mf3 right now.

Is it possible to flash MJ6 modem on Canadian SGH-i337m?

Hi, I was wondering if there is a way to install this Modem on my Canadian S4. Without it, turning off the screen when Running any 4.3 TW ROM will make the phone too loose signal. When using Odin, it fails and nothing get installed.
Thanks!
crzykiller said:
Hi, I was wondering if there is a way to install this Modem on my Canadian S4. Without it, turning off the screen when Running any 4.3 TW ROM will make the phone too loose signal. When using Odin, it fails and nothing get installed.
Thanks!
Click to expand...
Click to collapse
First, this question should be asked in either the Q&A section or the specific thread. Second, from what I read someone already tried and even posted in the thread and it didn't work.

[Q] Noob here, Help Needed (what's new)

Hello,
First off I am very new to this. I always try to be as careful as possible and do as much research as I can. I follow all the steps as directed and ask questions ahead of time before screwing things up.
My problem now is I accepted an OTA update to 4.3 from what I thought was a stock 4.2.2. Apparently I was wrong and the superUSER app was still installed on my phone. I no longer have the ability to use my WiFi- (I switch the toggle and it just stays off) I have tried to reset and restore. I have tried to delete all data and re-install. I have tried everything I'm comfortable with at this point. I dont know if I should try using ODIN to flash stock since I probably have a knox bootlocker and dont want to do more damage. I am posting photos because I noticed my naseband and my build number don't match up. I am afraid im stuck in between 4.2.2 and 4.3. I would greatly appreciate any advice or even a push in the right direction. I have been searching trying to find a solution for over a month and the most I can get is... "your an idiot, dont update OTA while rooted, etc etc" Hindsight is 20/20. Thank you again for your time.
[/ATTACH]
Try flashing a 4.3 rom.
beerbq said:
Try flashing a 4.3 rom.
Click to expand...
Click to collapse
Stock 4.3? Just usin ODIN or what? Sorry I know that this is probably a lot simpler than I am making it.
bumblingfool said:
Stock 4.3? Just usin ODIN or what? Sorry I know that this is probably a lot simpler than I am making it.
Click to expand...
Click to collapse
I am not an expert but from what Im seeing your on a 4.3 rom but the modem did not update. Your modem is still mf9. I would flash a 4.2 rom and go from there. I don't want to give the wrong info hopefully someone can chime in that knows more than me.
beerbq said:
I am not an expert but from what Im seeing your on a 4.3 rom but the modem did not update. Your modem is still mf9. I would flash a 4.2 rom and go from there. I don't want to give the wrong info hopefully someone can chime in that knows more than me.
Click to expand...
Click to collapse
Yeah that is what I was noticing as well. I have soft bricked my phone twice now trying to use odin and going back to a stock 4.2. The flash says fail everytime. I am wondering if KNOX is blocking ODIN from flashing the new ROM. Thanks for your quick response and I guess this means I am on the right path. Now I just need to find a way to flash a stock 4.2 on my fluster clucked half 4.2 half 4.3 phone.
I do know that once you're on MJA there's no going backwards. Try odining the modem. Make sure you turn your phone off...then boot to DL mode. Don't just boot to DL mode seems to work better that way.
Sent from my SPH-L720 using XDA Premium 4 mobile app
If all fails go here and download the latest MK2 4.3:
http://samsung-updates.com/device/?id=SPH-L720&details=Galaxy_S_4_Sprint
GS4 Stock Rooted MJA 4.3,Philz Touch CWM,HotSpot Mod,Transparent Weather Widget...
bumblingfool said:
Yeah that is what I was noticing as well. I have soft bricked my phone twice now trying to use odin and going back to a stock 4.2. The flash says fail everytime. I am wondering if KNOX is blocking ODIN from flashing the new ROM. Thanks for your quick response and I guess this means I am on the right path. Now I just need to find a way to flash a stock 4.2 on my fluster clucked half 4.2 half 4.3 phone.
Click to expand...
Click to collapse
I would suggest first trying to reinstall your mf9 modem via odin , if that doesn't work I'd try to install the mja modem via odin. You can find the links to files here http://forum.xda-developers.com/showpost.php?p=42954149&postcount=2
And a thread about a similar issue so you can get a better idea of what you need to do.
http://forums.androidcentral.com/sp.../342205-mk2-ota-update-today-killed-wifi.html
Sent from my Nexus 7 using XDA Premium 4 mobile app

[Q] I337UCUFNJ4 AT&T Galaxy S4 4.4.4 only download mode

i root my gs4 with odin, everything went fine but I wanted to get my gs faster so i downloaded kernel for gs4 and flashed it. mistake here. i didnt check if it supports 4.4.4. it only support devices under 4.3 so.. no wifi. that was the problem i had other than that, all was good. than I downloaded some OTA file for my gs4 and when i tried to flash it with safestrap, it kept said fail. so i thought it's maybe because i already have OS installed... so i wiped system,data and i tried to flash that OTA file, fail again. now im screwd. there is no OS on my gs4. when i trun it on, it vibrates, than reboots and than goes into Odinmode and say something like "nornal boot not possible" in red.
so i spent couple days searching how to get my phone work again but everything i tried didnt work. and for galaxy s4 sgh i337 nj4 version 4.4.4 it even made me think it was made just for me.
i tried kies, failed it told me to do emergency recovery but my phone does not show on list.
can anyone please help me.. Im new to Samsung Galaxy..
im thinking about following this guide since there are no options
http://www.androidrootz.com/2014/03/how-to-unrootunbrick-at-galaxy-s4-sgh.html
is this okay?
JustinBushke said:
im thinking about following this guide since there are no options
http://www.androidrootz.com/2014/03/how-to-unrootunbrick-at-galaxy-s4-sgh.html
is this okay?
Click to expand...
Click to collapse
You'll have to use the ODIN file from this thread: http://forum.xda-developers.com/showthread.php?t=2674223
Flash that in ODIN, use the rootable version if you want to root it using towelroot.
Besides that, you can't flash any custom kernels on the S4 unless you're on the 4.2.2 MDL bootloader, and there's no way to get back to that from 4.4.
DeadlySin9 said:
You'll have to use the ODIN file from this thread: http://forum.xda-developers.com/showthread.php?t=2674223
Flash that in ODIN, use the rootable version if you want to root it using towelroot.
Besides that, you can't flash any custom kernels on the S4 unless you're on the 4.2.2 MDL bootloader, and there's no way to get back to that from 4.4.
Click to expand...
Click to collapse
Thank you so much for your reply. i will try that after couple hours.
but I am curious if i can use I337UCUFNB on NJ4 bootloader. i have nj4 bootloader
JustinBushke said:
Thank you so much for your reply. i will try that after couple hours.
but I am curious if i can use I337UCUFNB on NJ4 bootloader. i have nj4 bootloader
Click to expand...
Click to collapse
Yes, it will work.
DeadlySin9 said:
Yes, it will work.
Click to expand...
Click to collapse
Thank you so much! You saved my life!
I want to be just like you helping other people
Sent from my SAMSUNG-SGH-I337 using XDA Free mobile app

Suspected Mismatched Kernel and ROM Causing issues

I have a GT-i9505 that I've been running the stock Jellybean Touchwiz 4.2.2 ROM on since forever (I9505XXUAMDD). I recently discovered compatibility issues with some updated apps and decided to give the latest Touchwiz a spin. Since my phone is rooted i couldn't get the update via OTA so I downloaded the latest Touchwiz ROM (I9505XXUHOL2) and flashed it manually. It went well but I didn't really like it and I didn't have the time to set everything up again so I restored my original setup using a nandroid backup but now things are all wonky. I can't mount my SD card and wifi won't turn on. I suspect this is because the kernel is still the one from the 5.0.1 flash while the ROM is back to the 4.2.2 one. Under the about device menu the android version shows 4.2.2 and the build number is the original I9505XXUAMDD but the baseband version shows I9505XXUHOL2 and the kernel version shows 3.4.0-431985. In addition when booting up the phone it shows the "SEAndroid...kernel" message in the top left corner; not sure what this is.
Is there a way to remedy this or am I SOL and forced to use a later version of Android? Thanks in advance!
Edit: So further research suggests it's actually the Baseband version that is causing the problem so flashing the correct modem should fix it. Could someone please show me which modem is correct for I9505XXUAMDD? Also, will this fix the kernel message I keep getting? Thanks!
You can't downgrade from lollipop that easily
There's threads in general relating to downgrading
Could be a mismatch between the phone bootloader and baseband. What bootloader version and baseband is on the phone? If they match, it could just be that the bootloader and modem are too new for the rom.
DSA said:
You can't downgrade from lollipop that easily
There's threads in general relating to downgrading
Click to expand...
Click to collapse
Yeah, I realize that now. I put too much faith in the nandroid restore. I had tried out the JFLTE-GPE ROM once before and a nandroid restore reverted the device without issue so I just assumed it would do the same in this situation. I will look into the downgrade process.
audit13 said:
Could be a mismatch between the phone bootloader and baseband. What bootloader version and baseband is on the phone? If they match, it could just be that the bootloader and modem are too new for the rom.
Click to expand...
Click to collapse
I was under the impression that a nandroid restore would flash the bootloader as well but my faith in nandroid backups isn't what it used to be
Guess I'll have to look for the appropriate bootloader and modem for the ROM.
You can install the Samsung Phone Info app from the Play store to confirm your bootloader and modem.
audit13 said:
You can install the Samsung Phone Info app from the Play store to confirm your bootloader and modem.
Click to expand...
Click to collapse
Wifi is out so I don't have access to the play store
I used the terminal emulator to check the bootloader version and it's indeed still on I9505XXUHOL2. I've read somewhere that once a newer version of the knox bootloader has been installed, attempting to flash back to the 4.2.2 bootloader will brick the phone. Is this true?
Thanks again!
I don't know about the 9505 but you can't downgrade on the s3, i337, and note 2.
Personally, I would flash back to stock to make sure everything still works.
audit13 said:
I don't know about the 9505 but you can't downgrade on the s3, i337, and note 2.
Personally, I would flash back to stock to make sure everything still works.
Click to expand...
Click to collapse
Will do. I'll pull up the I9505XXUAMDD from sammobile and give that flash when I get home this evening. Thanks again!
So I flashed to stock I9505XXUAMDD but the wifi and sd card issue remains and the bootloader still shows up as I9505XXUHOL2. Not sure how to proceed.
I'm starting to get the feeling that 4.2.2 is a lost cause...I guess downgrade on GT-i9505 is not possible.
Edit: Baseband version is now I9505XXUAMDD and wifi is still not working.
Update: Flashed to I9505XXUHOF2 and everything seems to be all peachy keen for now. Will update again once I restore all my apps and data.
aznpos531 said:
So I flashed to stock I9505XXUAMDD but the wifi and sd card issue remains and the bootloader still shows up as I9505XXUHOL2. Not sure how to proceed.
I'm starting to get the feeling that 4.2.2 is a lost cause...I guess downgrade on GT-i9505 is not possible.
Edit: Baseband version is now I9505XXUAMDD and wifi is still not working.
Update: Flashed to I9505XXUHOF2 and everything seems to be all peachy keen for now. Will update again once I restore all my apps and data.
Click to expand...
Click to collapse
No it's not. It's not possible because you cannot downgrade the bootloader.
Perhaps you can still go back with 4.2.2. custom rom but in my opinion it's really not worth it. It's not worth to stay on an outdated version with all the security vulnerabilities. I would recommend anyone to use CM because then you can run the latest software on your phone.
Lennyz1988 said:
No it's not. It's not possible because you cannot downgrade the bootloader.
Perhaps you can still go back with 4.2.2. custom rom but in my opinion it's really not worth it. It's not worth to stay on an outdated version with all the security vulnerabilities. I would recommend anyone to use CM because then you can run the latest software on your phone.
Click to expand...
Click to collapse
Thanks for confirming and thanks for your input :good:
I really did enjoy the Jellybean experience on the S4; going to Jellybean from ICS felt like an upgrade. I feel like that was the best match for the phone and it just went downhill from there (as far as the S4 is concerned). I suppose it's time to move on.
Update: All apps and data fully restored and it seems stable save for some small quirks. Not liking Lollipop though.

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