Hey,
Xperia M dual user here. Recently got the update to 4.3 Jelly Bean. I updated and of course lost the root. Now, I took a backup TA when I was rooted in 4.2.2. I am going to install CWM and try some custom roms. So can I still use the same BackupTA or do I have to create a new one after I upgraded to 4.3?
Thanks!
zoozoo243 said:
Hey,
Xperia M dual user here. Recently got the update to 4.3 Jelly Bean. I updated and of course lost the root. Now, I took a backup TA when I was rooted in 4.2.2. I am going to install CWM and try some custom roms. So can I still use the same BackupTA or do I have to create a new one after I upgraded to 4.3?
Thanks!
Click to expand...
Click to collapse
If you have taken a backup in 4.2.2 then restore it in 4.2.2 only to relock the bootloader and then upgrade to 4.3. Then take backup of ta again then do whatever you to do with your mobile.
SArnab©® said:
If you have taken a backup in 4.2.2 then restore it in 4.2.2 only to relock the bootloader and then upgrade to 4.3. Then take backup of ta again then do whatever you to do with your mobile.
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Click to collapse
Just for clarification, so I can only relock my bootloader in 4.2.2 because I took my BackupTA on 4.2.2. I will not be able to relock my bootloader in 4.3 with the BackupTA took in 4.2.2. Did I get it right?
Also, the problem is 4.3 doesn't have any rooting method without unlocking bootloader. I have to take a backupTA before unlocking for which I need root. So kind of in a catch 22 situation here.
zoozoo243 said:
Just for clarification, so I can only relock my bootloader in 4.2.2 because I took my BackupTA on 4.2.2. I will not be able to relock my bootloader in 4.3 with the BackupTA took in 4.2.2. Did I get it right?
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Click to collapse
Well that's what I had read somewhere. Not sure where exactly. Its always preferable to restore TA Backup on the same version which it was backed up.
zoozoo243 said:
Also, the problem is 4.3 doesn't have any rooting method without unlocking bootloader. I have to take a backupTA before unlocking for which I need root. So kind of in a catch 22 situation here.
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Click to collapse
You are wrong mate. There is a working method to root 4.3 without unlocking Bootloader but that requires you to be in 4.2.2 + Fully rooted + locked Bootloader + Access to Windows PC along with USB Cables and Drivers.
Search In Android Development Section. The current version for the mod is v1.2
Although not recommended, you can restore your TA backup in any firmware version. Sometimes when you restore a backup taken in an old firmware version you get a bootloop that can be easily fixed by flashing the stock kernel again with FlashTool...
I'm saying that because I did something similar: before developing Nicki Root, I took a TA backup in rooted 4.2.2, unlocked bootloader, flashed 4.3 and rooted it by using CWM and then I restored TA backup I took in 4.2.2 and everything worked fine. I already did this procedure at least 5 times and it worked all of them, the only attempt I got a bootloop was after restoring TA backup while running a custom kernel, fixed by flashing stock kernel again
Another tip: create a TA backup with bootloader already unlocked too, if you ever need to unlock it again you can simply restore that backup, without needing to use fastboot and without wiping data partition
mbc07 said:
Although not recommended, you can restore your TA backup in any firmware version. Sometimes when you restore a backup taken in an old firmware version you get a bootloop that can be easily fixed by flashing the stock kernel again with FlashTool...
I'm saying that because I did something similar: before developing Nicki Root, I took a TA backup in rooted 4.2.2, unlocked bootloader, flashed 4.3 and rooted it by using CWM and then I restored TA backup I took in 4.2.2 and everything worked fine. I already did this procedure at least 5 times and it worked all of them, the only attempt I got a bootloop was after restoring TA backup while running a custom kernel, fixed by flashing stock kernel again
Another tip: create a TA backup with bootloader already unlocked too, if you ever need to unlock it again you can simply restore that backup, without needing to use fastboot and without wiping data partition
Click to expand...
Click to collapse
Thank you for pointing this out. I wrote what I head read before. Got new thing to learn today.
mbc07 said:
Although not recommended, you can restore your TA backup in any firmware version. Sometimes when you restore a backup taken in an old firmware version you get a bootloop that can be easily fixed by flashing the stock kernel again with FlashTool...
I'm saying that because I did something similar: before developing Nicki Root, I took a TA backup in rooted 4.2.2, unlocked bootloader, flashed 4.3 and rooted it by using CWM and then I restored TA backup I took in 4.2.2 and everything worked fine. I already did this procedure at least 5 times and it worked all of them, the only attempt I got a bootloop was after restoring TA backup while running a custom kernel, fixed by flashing stock kernel again
Another tip: create a TA backup with bootloader already unlocked too, if you ever need to unlock it again you can simply restore that backup, without needing to use fastboot and without wiping data partition
Click to expand...
Click to collapse
Hey that's a great idea! The phone will not reset at all.
You can restore your TA backup in any firmware as long as it is stock rom
Sent from my LT25i using XDA Free mobile app
Ah, I see. Thanks a lot guys!
You can restore it in any stock rom with stock kernel. I have restore ta 4.1 to 4.3 many times without problems
Sent from my C1905 using Tapatalk
Related
Hi all, I seriously consider to flash a 4.3 ROM (most likely Hurricane) even though I'm still happy with my 4.1.2 - however finally curiousness wins...
I have a simple question, just want a "yes or no". If the answer is no I will not ask for any further advice - will find it by myself.
Q: In case I do not want to stay with 4.3 can I simply go back to my previous 4.1.2 by just recovering a backup (NAND)?
My question is primarily related to the Bootloader since I'm wondering if a recover would restore previous BL as well. I don't want to go for the wifi-fix, therefore I will flash MJ5 BL prior to flashing 4.3 ROM.
Many thanks in advance!
no
sweetsmoke69 said:
Hi all, I seriously consider to flash a 4.3 ROM (most likely Hurricane) even though I'm still happy with my 4.1.2 - however finally curiousness wins...
I have a simple question, just want a "yes or no". If the answer is no I will not ask for any further advice - will find it by myself.
Q: In case I do not want to stay with 4.3 can I simply go back to my previous 4.1.2 by just recovering a backup (NAND)?
My question is primarily related to the Bootloader since I'm wondering if a recover would restore previous BL as well. I don't want to go for the wifi-fix, therefore I will flash MJ5 BL prior to flashing 4.3 ROM.
Many thanks in advance!
Click to expand...
Click to collapse
I did something similar before and it didn´t go well
I installed amnix rom because of the walkman player, but in the process that rom changed my modem so I was on G1 from thunderlite v7 and changed to L4.
there were some issues with the rom (mainly on walkman graphic glitches) and decided to go back to thunderlite v7 using a nandroid backup....
the thing is everything "seemed fine" but the modem was not restored ...
also my proximity sensor stopped working,
after a couple of days trying to fix it. I decided to install an old ROM from my carrier (telcel mexico) and lose the IMEI which I got back using an EFS back up I have (the first one I created)
then I updated again to 4.3 on hurricane everything seems to be working ok with the EFS folder and the sensor.,,
so I dont think your bootloader will get restored either.
be cautious.
I was asking myself the same question. I had a 4.1.2 backup of ARHD v19, and then i flashed the 4.3 ARHD v20.1, along with the MJ5 bootloader.
I was dissatisfied with the performance of 4.3, so i decided to revert through recovery. I made a 4.3 backup just in case i brick the phone.
Then i restored the 4.1.2 and everything went well, the 1st boot was about 10 seconds longer.
Now i am not sure did it restore the old bootloader or not, but the device is running pretty fast now on 4.1.2
So yes, it's possible
Mashed_Potatoes said:
I was asking myself the same question. I had a 4.1.2 backup of ARHD v19, and then i flashed the 4.3 ARHD v20.1, along with the MJ5 bootloader.
I was dissatisfied with the performance of 4.3, so i decided to revert through recovery. I made a 4.3 backup just in case i brick the phone.
Then i restored the 4.1.2 and everything went well, the 1st boot was about 10 seconds longer.
Now i am not sure did it restore the old bootloader or not, but the device is running pretty fast now on 4.1.2
So yes, it's possible
Click to expand...
Click to collapse
A nand backup does not contain the bootloader.
But to be sure you can install "android system info" from play store.
Then check buildinfos and the post boot loader version.
Sent from my GT-N7100 using xda app-developers app
Why dont you go in download and see if the bootloader has the knox bit or not.
Sent from my GT-N7100 using Tapatalk
mezo91 said:
Why dont you go in download and see if the bootloader has the knox bit or not.
Sent from my GT-N7100 using Tapatalk
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Click to collapse
+1 would be interesting to know. If Knox is there it would mean that 4.1.2 runs on mj5 bootloader...
I read some worrisome posts that once you upgrade the bootloader to 4.4.2 you cannot go back. I'm currently running fully functional 4.3 rom and have nandroid backup of it, where everything is working. I'd like to try to upgrade to KitKat rom, but if things don't go well for whatever reason - I'd like to have the security of knowing I can restore the nandroid of my working 4.3 rom. Based on what I read it may not be possible. My nandroid backup has all partitions in it, including boot and recovery (twrp 2.6.3.8). Can anyone confirm or deny if I'm on 4.4 rom with 4.4.2 bootloader, running twrp 2.7 - will I be able to restore my 4.3 nandroid, if needed?
Apo11on said:
I read some worrisome posts that once you upgrade the bootloader to 4.4.2 you cannot go back. I'm currently running fully functional 4.3 rom and have nandroid backup of it, where everything is working. I'd like to try to upgrade to KitKat rom, but if things don't go well for whatever reason - I'd like to have the security of knowing I can restore the nandroid of my working 4.3 rom. Based on what I read it may not be possible. My nandroid backup has all partitions in it, including boot and recovery (twrp 2.6.3.8). Can anyone confirm or deny if I'm on 4.4 rom with 4.4.2 bootloader, running twrp 2.7 - will I be able to restore my 4.3 nandroid, if needed?
Click to expand...
Click to collapse
From everything that I have read the answer is no. It does not matter that you have a backup of the 4.3 bootloader. When you flash the 4.4 bootloader it trips a qfuse (I am not to familiar with qfuse, but that is what everyone is saying) and at that point you cannot revert to the old bootloader.
SM-N900T: Powered by X-Note V13/CivZ-SnapKat 2.1
My searching seems to be giving me mixed answers about this. Is it possible to unlock my SIM while running Cyanogenmod? Currently on 4.4 and installed using the Cyanogenmod Installer months ago when I bought the phone. I'd prefer to not have to revert to stock. I'm traveling to Sweden in just over a week and I received a code from T-Mobile to unlock it. Has anyone had any luck in this situation?
You must be on stock
I figured. Is using Odin to flash back to NB4 the correct/best way to go? I really haven't followed any development/recovery methods for my phone since I installed with the CM installer almost a year ago.
EDIT: Can I make a nandroid backup with CWM of my current ROM (Cyanogenmod 4.4), use Odin to flash back to NB4 4.4.2, unlock my SIM, and then restore back to the Cyanogenmod backup?
Essem said:
EDIT: Can I make a nandroid backup with CWM of my current ROM (Cyanogenmod 4.4), use Odin to flash back to NB4 4.4.2, unlock my SIM, and then restore back to the Cyanogenmod backup?
Click to expand...
Click to collapse
Yes.. Or you can also flash a touchwiz ROM, unlock, and then restore your nandroid
Essem said:
I figured. Is using Odin to flash back to NB4 the correct/best way to go? I really haven't followed any development/recovery methods for my phone since I installed with the CM installer almost a year ago.
EDIT: Can I make a nandroid backup with CWM of my current ROM (Cyanogenmod 4.4), use Odin to flash back to NB4 4.4.2, unlock my SIM, and then restore back to the Cyanogenmod backup?
Click to expand...
Click to collapse
You mention that you haven't followed any development/recovery methods in almost a year after flashing the CM installer. If you've never updated either through Kies, Odin, or OTA... and have used nothing but custom ROMs, there is a chance you'd still be on the 4.2.2 (MDL) bootloader. It would be worth finding out before you go flashing 4.4.2 through Odin and giving yourself KNOX if you can avoid it.
Hello!
I've spent quite amount of time reading but i'm only getting partial answers, the big picture is still unclear since there is so many possibilities.
Currently: 14.4.A.0.108 Kitslim evo, rooted, unlocked bootloader (official method), custom kernel (Doom), TA keys are backed up with the TA 9.11 program.
Goal: Get 100% Stock on 14.4.A.0.108.
I can't use TA as first because i'm already on custom kernel which would result in bootloop.
If i flash stock rom i will loose recovery and i don't know which options i have to exclude since there is no info about that when flashing from unlocked bootloader.
How can i get out of this mess?
Thank you!
New Folder said:
Hello!
I've spent quite amount of time reading but i'm only getting partial answers, the big picture is still unclear since there is so many possibilities.
Currently: 14.4.A.0.108 Kitslim evo, rooted, unlocked bootloader (official method), custom kernel (Doom), TA keys are backed up with the TA 9.11 program.
Goal: Get 100% Stock on 14.4.A.0.108.
I can't use TA as first because i'm already on custom kernel which would result in bootloop.
If i flash stock rom i will loose recovery and i don't know which options i have to exclude since there is no info about that when flashing from unlocked bootloader.
How can i get out of this mess?
Thank you!
Click to expand...
Click to collapse
Question: what do you want?
Unrooted stock rom or another rooted stock rom or ....?
if you want a stock unrooted firmware, you must use Flashtool, download firmware first and then flash it with this tool.
Otherwise just download another stock rooted rom, copy to your device, boot into recovery and flash it
moonryder said:
Question: what do you want?
Unrooted stock rom or another rooted stock rom or ....?
if you want a stock unrooted firmware, you must use Flashtool, download firmware first and then flash it with this tool.
Otherwise just download another stock rooted rom, copy to your device, boot into recovery and flash it
Click to expand...
Click to collapse
Goal is to get into condition ready for warranty.
Do i have to exclude TA in flashtool options when flashing stock rom?
When relocking bootloder do i have to use BLU or TA 9.11 program method?
New Folder said:
Goal is to get into condition ready for warranty.
Do i have to exclude TA in flashtool options when flashing stock rom?
When relocking bootloder do i have to use BLU or TA 9.11 program method?
Click to expand...
Click to collapse
all explained here
restoring TA partition will relock your bootloader and restore DRM keys, but only if you unlocked bootloader the official way by Sony.
same here i have rock z1 l, want to return to stock everything with that step i will return ??
So I'm planning to switch carriers and I'm wondering how I can unlock my i747M locked to Fido that's running OctOS L 5.1.1. If I have to downgrade, how do I transfer all my current app data and pic's. Also, is it possible to keep the unlock if you were to update you phone to a higher version or install a custom ROM or install the nandroid backup you made before unlocking? Please leave me with some important things to know about while unlocking your phone if possible!
If the phone is running a 4.3 or newer bootloader, you'll have to buy an unlock code.
In order to enter the unlock code, the phone should be running a stock samsung ROM from sammobile.
I suggest creating a nandroid backup with TWRP, copy the backup to your computer, flash the stock ROM, perform a factory reset after flashing stock, unlock, flash TWRP, restore nandroid.
audit13 said:
If the phone is running a 4.3 or newer bootloader, you'll have to buy an unlock code.
In order to enter the unlock code, the phone should be running a stock samsung ROM from sammobile.
I suggest creating a nandroid backup with TWRP, copy the backup to your computer, flash the stock ROM, perform a factory reset after flashing stock, unlock, flash TWRP, restore nandroid.
Click to expand...
Click to collapse
so, in a nutshell, i just need to downgrade my phone to a stock rom of 4.3 or below and just search up a video of how to unlock it using the keypad method?
than if i wanted to, i could use the nandroid backup i did before and flash it and still have an unlocked phone?
You cannot use the free method once the phone is running a 4.3 or newer bootloader because you cannot properly run the 4.1.1 modem on a 4.3 or 4.4.2 bootloader and the 4.3 or 4.4.2 bootloader cannot be downgraded to a 4.1.1 bootloader.
Before flashing anything, which bootloader is on the phone?
audit13 said:
You cannot use the free method once the phone is running a 4.3 or newer bootloader because you cannot properly run the 4.1.1 modem on a 4.3 or 4.4.2 bootloader and the 4.3 or 4.4.2 bootloader cannot be downgraded to a 4.1.1 bootloader.
Before flashing anything, which bootloader is on the phone?
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Click to collapse
Sorry for the noob question, but how do i found out my bootloader?
If this helps, my baseband is I747MVLUFOB3
I actually just logged on to get similar clarification. I have an unlock code, but it does not work when I enter it using OctOS-M. Do I need to be on a stock rom to unlock? Can I easily jump back to a stock rom, then back again to a marshmallow rom?
JoshMcMadMac said:
I actually just logged on to get similar clarification. I have an unlock code, but it does not work when I enter it using OctOS-M. Do I need to be on a stock rom to unlock? Can I easily jump back to a stock rom, then back again to a marshmallow rom?
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Click to collapse
From what ive heard, you have to be on a stock rom. As of google, even then, some users have problems or cant, which from what ive heard, can be fixed by downgrading to 4.3 (make sure ur bootloader is the same or your phone WILL be bricked).
Please note that this is from what ive heard and may not be accurate.
Install the Samsung phone info app from the play store as it will tell you a lot.
audit13 said:
Install the Samsung phone info app from the play store as it will tell you a lot.
Click to expand...
Click to collapse
My boot loader seems to be the same as my baseband.
What is the bootloader version?
GamingDevilsCC said:
From what ive heard, you have to be on a stock rom. As of google, even then, some users have problems or cant, which from what ive heard, can be fixed by downgrading to 4.3 (make sure ur bootloader is the same or your phone WILL be bricked).
Click to expand...
Click to collapse
That sounds problematic...I am on NJ2. I am not having any luck finding anything about getting back to stock on the newest bootloader.
audit13 said:
If the phone is running a 4.3 or newer bootloader, you'll have to buy an unlock code.
In order to enter the unlock code, the phone should be running a stock samsung ROM from sammobile.
I suggest creating a nandroid backup with TWRP, copy the backup to your computer, flash the stock ROM, perform a factory reset after flashing stock, unlock, flash TWRP, restore nandroid.
Click to expand...
Click to collapse
Do you think this one would work?
https://z3x-team.com/forum/topic.php?id=9505
Whats a CWM anyways?
CWM is Clockworkmod with is a custom recovery. CWM is outdated as it has not been updated for quite some time. Many recent custom ROMs now require TWRP.
You may be able to software unlock the phone but you'll probaby need a UART cable and Samsung Pro tools. I don't believe Pro Tools is free.
The linked thread is from 2014 and, in 2014, many phones were running 4.1.2 which meant the phone could be downgraded to 4.1.1 using and sim unlocked using the dialler's menu options.