Hi everybody,
I'd like to ask what i have to backup before unlocking bootloader and flashing custom ROM.
I am Xperia-newbie so I rather ask before doing it. For eg. on Samsung Galaxy S was recommended to backup "EFS" folder and make ROM backup via CWM before flashing.
Is on Xperia SP something like "EFS" folder which I have to backup?
And can I somewhere download "original ROM" for Flashtool (Non-Branded GERMAN phone) if i want to revert my phone back to original (...warranty...).
Thanks for your replies...
Hi, before unlocking you need to backup TA here:
http://forum.xda-developers.com/showthread.php?t=2292598
And if you want to revert back your phone to original you need to follow this tutorial:
http://forum.xda-developers.com/showthread.php?t=2188129
Thanks, that helps me a lot!
Related
So I installed CM10.2 on my phone. For that I had to root and unlock my bootloader. I didn't really like it to be honest so I decided that I wanted to go back to stock rom, the problem however, is that i'm not sure how I should do this. I made a backup of my TA Partition so I also could get my DRM keys (Bravia Engine, etc) back. I don't know what I should do first and I was wondering if there is someone who could help me through this process. Do I first need to flash stock kernel, then flash stock ftf, and then install that TA backup in order to relock my bootloader? But I thought I needed root for this, if I flash a stock ftf then root will be gone right? So many questions
Thank you in advance
parfa10 said:
So I installed CM10.2 on my phone. For that I had to root and unlock my bootloader. I didn't really like it to be honest so I decided that I wanted to go back to stock rom, the problem however, is that i'm not sure how I should do this. I made a backup of my TA Partition so I also could get my DRM keys (Bravia Engine, etc) back. I don't know what I should do first and I was wondering if there is someone who could help me through this process. Do I first need to flash stock kernel, then flash stock ftf, and then install that TA backup in order to relock my bootloader? But I thought I needed root for this, if I flash a stock ftf then root will be gone right? So many questions
Thank you in advance
Click to expand...
Click to collapse
[Tutorial] Xperia Z & ZL Bootloader Unlocking/Relocking
:good:
hit thanks
x102x96x said:
[Tutorial] Xperia Z & ZL Bootloader Unlocking/Relocking
:good:
hit thanks
Click to expand...
Click to collapse
Thank you for your response but this is only relocking etc. My problem is that I don't know in what order I should do things. So far I think I should do it like this (but i'm not sure, so i'm asking for someone to tell me if it's wrong) : 1. Simply flash a stock ftf (with the ftf the stock kernel will be installed too, right?) 2. Relock bootloader 3. Then apply the TA Backup to get the DRM Keys back.
Is this the right order to do things? Will I make an expensive brick out of it if I do it like that?
Flash a stock FTF and root it (or flash a pre-rooted stock based ROM through recovery ). Then restore TA, which will automatcally lock bootloader and restore DRM keys
Sent from my C6603 using xda app-developers app
shoey63 said:
Flash a stock FTF and root it (or flash a pre-rooted stock based ROM through recovery ). Then restore TA, which will automatcally lock bootloader and restore DRM keys
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
Thank you very much, I tried this and it worked.
Hi
Please some one tellme step by Step Guide to relock My Xperia Z Boot Loader. I already backup my TA Partition. Its very confusing. Please help
sriszone said:
Hi
Please some one tellme step by Step Guide to relock My Xperia Z Boot Loader. I already backup my TA Partition. Its very confusing. Please help
Click to expand...
Click to collapse
Install STOCK rom and root it, then restore your TA. It is very important that you flash stock rom. Do not use custom rom or custom kernel. If you have 10.3.1.A.2.67 or 10.3.1.A.0.244(more easy to root) firmware, install it and root it. What tool did you use to make your TA backup?
To root 10.3.1.A.2.67/74 firmware read http://forum.xda-developers.com/showthread.php?t=2386405
CiscoX said:
Install STOCK rom and root it, then restore your TA. It is very important that you flash stock rom. Do not use custom rom or custom kernel. If you have 10.3.1.A.2.67 or 10.3.1.A.0.244(more easy to root) firmware, install it and root it. What tool did you use to make your TA backup?
Click to expand...
Click to collapse
Here bro i use this method to backup my TA Partition
http://forum.xda-developers.com/showthread.php?t=2292598.
All i have to install Stock rom and root it , then i have to restore the TA Partition? This will relock my Bootloader?
sriszone said:
Here bro i use this method to backup my TA Partition
http://forum.xda-developers.com/showthread.php?t=2292598.
All i have to install Stock rom and root it , then i have to restore the TA Partition? This will relock my Bootloader?
Click to expand...
Click to collapse
Yes, install stock rom and then root it and make sure you have root before you restore your TA. In the Backup-TA tool you have one option called, Restore dry-run... use that one to test your TA before you restore it, to make sure you don't get any errors
Alrighty some background info and where I'm at. I've got some dev (Android XML layout fixes) experience on a custom ROM on i9300 and I finally decided to upgrade my phone onto the beasty Xperia Z1.
My phone came factory shipped with .290. It's the C6903 model. I've been looking up videos and trying to find info about where to begin with getting my root, bootloader, cwm, and custom ROM install going. Then I found out about the TA partition and that even though my phone allows me to unlock the bootloader, it's a smart idea to first backup the TA partition before I unlock my bootloader via the $ony website. With the TA backed up I can revert my phone back to stock at some point and restore the TA so that my phone looks basically factory fresh. So I realised that I probably ought to back up my TA in case of any warranty issues. Which means I need to get my phone rooted before anything else. (I hope my assessment has been correct so far, it would be awesome if someone can verify the above paragraph)
Now this is where I am completely confused. I've attempted to use VRoot - and of course it does not support the .290 firmware.
Then I found out that it is possible to downgrade the firmware so that I can root and TA backup before bootloader unlock. This is the knowledge level I am up to. I have no idea which firmware to downgrade to or how to even actually perform a successful downgrade. (I've kinda gotten frustrated at the huge slab of info and I need some specific info from some users more experienced at this than I am at this point..)
I read how some people have flashed down to .534 and others have flashed down to .257. I would like to know exactly what steps I should take and which is the best firmware to downgrade to, just to do a root crack and TA backup. Can you even downgrade firmware without bootloader involved?
Basically the flow of what I need to do right now is this (I think):
1) Downgrade firmware to probably .534 from my current .290 (I need to flash the FTF using Flashtool, correct?)
2) Install Root with VRoot
3) TA Backup (http://forum.xda-developers.com/showthread.php?t=2292598&highlight=ta)
4) Upgrade back to .290 (Do I do this via OTA? I hope it is not difficult to do it via some command line tools if it comes to that..)
--- Above step also gets rid of most of Root access provided to the older firmware (this is what I've read.. Is this correct?)
5) Unlock bootloader (must do this in version .290 to avoid the camera bug), via guide on Sony website
6) Go crazy with all the custom things I want to install - CWMRecovery, CM11, etc
7) ???
8) Profit
Can someone please tell me if the above list is the order I need to proceed with?
:good: Thanks for any help you guys can give me. I am truly frustrated by this 290 firmware version! And reading all the topics about people who bricked after attempting similar things without knowing exactly what they needed to do and which order to do it in..
tl;dr - On .290 firmware, I want to backup TA before I unlock bootloader, which firmware version do I downgrade to?
SleepinDevil said:
Alrighty some background info and where I'm at. I've got some dev (Android XML layout fixes) experience on a custom ROM on i9300 and I finally decided to upgrade my phone onto the beasty Xperia Z1.
My phone came factory shipped with .290. It's the C6903 model. I've been looking up videos and trying to find info about where to begin with getting my root, bootloader, cwm, and custom ROM install going. Then I found out about the TA partition and that even though my phone allows me to unlock the bootloader, it's a smart idea to first backup the TA partition before I unlock my bootloader via the $ony website. With the TA backed up I can revert my phone back to stock at some point and restore the TA so that my phone looks basically factory fresh. So I realised that I probably ought to back up my TA in case of any warranty issues. Which means I need to get my phone rooted before anything else. (I hope my assessment has been correct so far, it would be awesome if someone can verify the above paragraph)
Now this is where I am completely confused. I've attempted to use VRoot - and of course it does not support the .290 firmware.
Then I found out that it is possible to downgrade the firmware so that I can root and TA backup before bootloader unlock. This is the knowledge level I am up to. I have no idea which firmware to downgrade to or how to even actually perform a successful downgrade. (I've kinda gotten frustrated at the huge slab of info and I need some specific info from some users more experienced at this than I am at this point..)
I read how some people have flashed down to .534 and others have flashed down to .257. I would like to know exactly what steps I should take and which is the best firmware to downgrade to, just to do a root crack and TA backup. Can you even downgrade firmware without bootloader involved?
Basically the flow of what I need to do right now is this (I think):
1) Downgrade firmware to probably .534 from my current .290 (I need to flash the FTF using Flashtool, correct?)
2) Install Root with VRoot
3) TA Backup (http://forum.xda-developers.com/showthread.php?t=2292598&highlight=ta)
4) Upgrade back to .290 (Do I do this via OTA? I hope it is not difficult to do it via some command line tools if it comes to that..)
--- Above step also gets rid of most of Root access provided to the older firmware (this is what I've read.. Is this correct?)
5) Unlock bootloader (must do this in version .290 to avoid the camera bug), via guide on Sony website
6) Go crazy with all the custom things I want to install - CWMRecovery, CM11, etc
7) ???
8) Profit
Can someone please tell me if the above list is the order I need to proceed with?
:good: Thanks for any help you guys can give me. I am truly frustrated by this 290 firmware version! And reading all the topics about people who bricked after attempting similar things without knowing exactly what they needed to do and which order to do it in..
tl;dr - On .290 firmware, I want to backup TA before I unlock bootloader, which firmware version do I downgrade to?
Click to expand...
Click to collapse
Yes, you need to downgrade to .534 and root before you can backup your TA
Here is a guide on how to achieve that
If you follow the video guide you will end up with rooted .290
Then backup you TA:
and go to Sony's website to unlock the bootloader. An unlocked bootloader will let you flash custom kernels to your phone and thus you will be able to use roms such as CM, AOSP etc.
NEXT TIME PLEASE READ BEFORE CREATING A NEW THREAD. THIS HAS BEEN COVERED 100's OF TIMES
in general you have to do these steps:
downgrade to an early firmware that can be rooted and root it.
then install dual recovery.
in dual recovery wipe your phone, flash rom, flash again superuser and again dual recovery.
power off phone.
power on and direct flash kernel,baseband, bootbundle. for this i would recommend using NUTs stripped FTF files. also from his site you get recovery and superuser/supersu.
you only loose TA when you unlock your bootloader. unlocking is only neccessary if you plan to flash a custom kernel too.
when you are on rooted firmware backup TA, you never know if you need it later.
a good step by step tutorial is iHackers 2.1 thread.
also be prepared that actually there is a chance to brick your device. many can be restored using Sony Update Service or by flashing a full stock FTF, but some devices need a new mainboard. things are a litte bit tricky at the moment
shem2409 said:
Yes, you need to downgrade to .534 and root before you can backup your TA
Here is a guide on how to achieve that
If you follow the video guide you will end up with rooted .290
Then backup you TA:
and go to Sony's website to unlock the bootloader. An unlocked bootloader will let you flash custom kernels to your phone and thus you will be able to use roms such as CM, AOSP etc.
NEXT TIME PLEASE READ BEFORE CREATING A NEW THREAD. THIS HAS BEEN COVERED 100's OF TIMES
Click to expand...
Click to collapse
When on 4.3 and I tried many time still can't downgraded to 534. How to do it? Thank!
Lukily my TA had been backup.
Send from GT-I9506 using Tapatalk
Devices: Samsung GT-I9506 and Sony Z1 C6903
timberwolf60 said:
When on 4.3 and I tried many time still can't downgraded to 534. How to do it? Thank!
Lukily my TA had been backup.
Send from GT-I9506 using Tapatalk
Devices: Samsung GT-I9506 and Sony Z1 C6903
Click to expand...
Click to collapse
Here is a video on how to use flashtool
The previous video that I have sent you shows you step by step how to do everything
Hi everyone, recently , i downgraded back to 4.1.2 and flashed a custom rom. But, the drm keys i backed up was on 4.3. When i restored it the phone hard bricked and i need to flash the ftf, root , unlock bl and restore my cwm recovery backup. Anyone has a downloadable ta partition backup for this phone? Or is it only for one phone? Please help i really want back my bravia engine.
Sent from my C5303
creepycow said:
Hi everyone, recently , i downgraded back to 4.1.2 and flashed a custom rom. But, the drm keys i backed up was on 4.3. When i restored it the phone hard bricked and i need to flash the ftf, root , unlock bl and restore my cwm recovery backup. Anyone has a downloadable ta partition backup for this phone? Or is it only for one phone? Please help i really want back my bravia engine.
Sent from my C5303
Click to expand...
Click to collapse
It's only for one phone, if you flash other drm keys from another sp you will hard brick your phone.
Hello everybody!
I'm having a hard time to find out about how to root, make a TA backup, flash a custom recovery and then flash a custom rom.
Everywhere I looked I found only tools for android 4.3 or 4.2 - but not for android 5.x lollipop.
My question is - when my new Xperia Z1 (C6903) [honami] will finally arrive - what do I have to do to successfully flash a custom rom (even have the TA backup)? Do I have to downgrade? Or is it possible to do all these things while having android 5.x installed on the Z1? Or how?
I would really welcome a step by step guide (with some links providing tools..) if someone can do that for me?
I am not a beginner about flashing, etc (I have a samsung phone and there are not so many obstacles; or better said - things to re/solve before proceeding with flashing roms).
Thank you for your patience and answers.
Best regards.
God bless you.
goodluck
neisor said:
Hello everybody!
I'm having a hard time to find out about how to root, make a TA backup, flash a custom recovery and then flash a custom rom.
Everywhere I looked I found only tools for android 4.3 or 4.2 - but not for android 5.x lollipop.
My question is - when my new Xperia Z1 (C6903) [honami] will finally arrive - what do I have to do to successfully flash a custom rom (even have the TA backup)? Do I have to downgrade? Or is it possible to do all these things while having android 5.x installed on the Z1? Or how?
I would really welcome a step by step guide (with some links providing tools..) if someone can do that for me?
I am not a beginner about flashing, etc (I have a samsung phone and there are not so many obstacles; or better said - things to re/solve before proceeding with flashing roms).
Thank you for your patience and answers.
Best regards.
God bless you.
Click to expand...
Click to collapse
1st things to do b4 flashing/doing something on ur phone.
1. ROOTING stock lollipop
http://forum.xda-developers.com/xperia-z1/general/root-xperia-running-lollipop-lb-ubl-t3123893
2. INSTALLING RECOVERY [dl only for z1]
http://nut.xperia-files.com/
3. BACK UP TA partition [root required]
http://forum.xda-developers.com/showthread.php?t=2292598
mizukage said:
1st things to do b4 flashing/doing something on ur phone.
1. ROOTING stock lollipop
http://forum.xda-developers.com/xperia-z1/general/root-xperia-running-lollipop-lb-ubl-t3123893
2. INSTALLING RECOVERY [dl only for z1]
http://nut.xperia-files.com/
3. BACK UP TA partition [root required]
http://forum.xda-developers.com/showthread.php?t=2292598
Click to expand...
Click to collapse
Thank you very much!