[Q] Going back to stock - Xperia Z1 Q&A, Help & Troubleshooting

Hey guys,
Have a quick question here. When it was possible to (properly) unlock bootloader. I backed up my TA partition, root, unlock and custom ROM e.t.c.
Now, I wanted to test out stock 4.4 from Sony. Do I simply download the FTF and flash it via Flashtool? Will BIONZ e.t.c. work? Or do I have to go back to 4.2 stock, restore TA then it will work?
Or simply flash something like RomAur 4.4.2, and need not worry about TA (and BIONZ e.t.c. will work)?

Juzman said:
Hey guys,
Have a quick question here. When it was possible to (properly) unlock bootloader.
Click to expand...
Click to collapse
when has it not been possible and what do you mean by properly?
Now, I wanted to test out stock 4.4 from Sony. Do I simply download the FTF and flash it via Flashtool?
Click to expand...
Click to collapse
Yes

Juzman said:
Hey guys,
Have a quick question here. When it was possible to (properly) unlock bootloader. I backed up my TA partition, root, unlock and custom ROM e.t.c.
Now, I wanted to test out stock 4.4 from Sony. Do I simply download the FTF and flash it via Flashtool? Will BIONZ e.t.c. work? Or do I have to go back to 4.2 stock, restore TA then it will work?
Or simply flash something like RomAur 4.4.2, and need not worry about TA (and BIONZ e.t.c. will work)?
Click to expand...
Click to collapse
Bionz is gone after you unlocked your bootloader. You'd have to restore your ta backup to get it back

gregbradley said:
when has it not been possible and what do you mean by properly? Yes
Click to expand...
Click to collapse
It's always been possible, but there was an issue regarding unlocking bootloader at first with the camera bug.
Ahki767 said:
Bionz is gone after you unlocked your bootloader. You'd have to restore your ta backup to get it back
Click to expand...
Click to collapse
This is what I meant. So, to have bionz, I would have to restore TA, relock bootloader and not have custom kernel (like Doomlords). And just flash something like RomAur.

Juzman said:
It's always been possible, but there was an issue regarding unlocking bootloader at first. Cannot remember what it was though.
Click to expand...
Click to collapse
There was an issue with focus on the camera
This is what I meant. So, to have bionz, I would have to restore TA, relock bootloader and not have custom kernel (like Doomlords). And just flash something like RomAur.
Click to expand...
Click to collapse
Justt resotre the TA, that relocks your bootloader anyway
RomAur is not a stock rom, flash a FTF after retoring your TA, it will also install the stock kernel you will need on a LB

gregbradley said:
There was an issue with focus on the camera Justt resotre the TA, that relocks your bootloader anyway
RomAur is not a stock rom, flash a FTF after retoring your TA, it will also install the stock kernel you will need on a LB
Click to expand...
Click to collapse
Yep, from what I was reading, I have to flash the same version of the stock that I backed up TA with, then restore TA (which will re-lock bootloader), then I can flash the LB version of RomAur.
However if I want to use DoomKernel, I will need an unlocked boot loader. Since I am currently running SlimKat, it would make more sense to just download RomAur and flash it and DoomKernel via CWM and not worry about TA restore (since I lose it when unlocking).

Juzman said:
Yep, from what I was reading, I have to flash the same version of the stock that I backed up TA with, then restore TA (which will re-lock bootloader), then I can flash the LB version of RomAur.
However if I want to use DoomKernel, I will need an unlocked boot loader. Since I am currently running SlimKat, it would make more sense to just download RomAur and flash it and DoomKernel via CWM and not worry about TA restore (since I lose it when unlocking).
Click to expand...
Click to collapse
Yes, but you said you wanted a stock rom, and RomAur is not stock (It is stock based, but it is not stock)
If you want RomAur just flash it.

gregbradley said:
Yes, but you said you wanted a stock rom, and RomAur is not stock (It is stock based, but it is not stock)
If you want RomAur just flash it.
Click to expand...
Click to collapse
Yeah sorry. RomAur (stock based). Just flash it. Simple. If I want TA/BIONZ though, will need to go completely stock + locked BL.

Juzman said:
Yeah sorry. RomAur (stock based). Just flash it. Simple. If I want TA/BIONZ though, will need to go completely stock + locked BL.
Click to expand...
Click to collapse
No, just restore your TA, ensure you have a stock kernel. You can still flash stock based custom roms on a locked bootloader.

Related

[Q] Help with Reverting/Relocking

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.

how to root zr 4.3?

is it possible to root zr with 4.3 updates?
im on locked bootloader. should i unlocked my bootloader? if so, how?
please help me this is urgent. i need to root my zr asap to be able to restore my app data. really important
w1040 said:
is it possible to root zr with 4.3 updates?
im on locked bootloader. should i unlocked my bootloader? if so, how?
please help me this is urgent. i need to root my zr asap to be able to restore my app data. really important
Click to expand...
Click to collapse
i don't recommend you to unlock bootloader as there's many steps to do which takes time.
so you will just need to downgrade to 4.2.2 firmware by flashing the ftf,then root it & install custom recovery,after that flash a pre-rooted 4.3 rom.
Ben Ling said:
i don't recommend you to unlock bootloader as there's many steps to do which takes time.
so you will just need to downgrade to 4.2.2 firmware by flashing the ftf,then root it & install custom recovery,after that flash a pre-rooted 4.3 rom.
Click to expand...
Click to collapse
too late. i already unlocked my bootloader. but after i unlocked it, my phone on bootloop but i managed to enter cwm. the 'free xperia' and 'xperia' logo keeps coming out if i try to boot my phone. looks like im on a wrong firmware to unlock my bootloader.
now im downloading (C5502) 10.4.B.0.569 tft files and flash it via flashtool, then im gonna try to again if my phone will boot or not.
@Ben Ling
I am new this rooting to. And I want to install a custom rom on my Xperia ZR. How do I downgrade to the previous ROM? Do I just use the flash tool? Is it necessary to backup my TA partition during this process or can I do it when I am about to root the device?Thanks!
samavedam_vijay said:
@Ben Ling
I am new this rooting to. And I want to install a custom rom on my Xperia ZR. How do I downgrade to the previous ROM? Do I just use the flash tool? Is it necessary to backup my TA partition during this process or can I do it when I am about to root the device?Thanks!
Click to expand...
Click to collapse
download the 4.2.2 ftf,flash it then root it & install recovery
then flash custom rom (only based on 4.3 & stock firmware)
Thank you
So basically these are the steps which I need to perform
1)Download and run flash tool
2)Download the correct ftf and flash it via flash tool
3)Root the phone using doomlord's vroot kit
4)Backup the TA partition
5)Unlock the bootloader
6)Install custom rom
Please confirm if these are the steps to be followed
Thanks!
If you only want root you dont need to unlock bootloader and backup TA.
Sent from my C5503 using XDA Premium 4 mobile app
hans3103 said:
If you only want root you dont need to unlock bootloader and backup TA.
Sent from my C5503 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I live in India so would there be an India specific rom(Stock) for my phone?
@Ben Ling I rooted my zr by flashing 4.1.2 . I have also backed up the TA partition. Can you please suggest any good ROMS now? What should I choose stock based ROMS or AOSP roms like Carbon?
Also, If I want to come back to stock ROM(4.3) again what should I do?
Thanks!
samavedam_vijay said:
@Ben Ling I rooted my zr by flashing 4.1.2 . I have also backed up the TA partition. Can you please suggest any good ROMS now? What should I choose stock based ROMS or AOSP roms like Carbon?
Also, If I want to come back to stock ROM(4.3) again what should I do?
Thanks!
Click to expand...
Click to collapse
if you want 4.4,then just try the carbon rom
for 4.3,try this.. http://forum.xda-developers.com/showthread.php?t=2726463
for back to stock,you will just need to backup your current 4.3 rom,then if you want to restore,just restore
but the backup will only restore by using the same recovery that you backup.
@Ben Ling Thankyou! One more question before I installed the 4.3 ROM which you mentioned, do I need to unclock the bootloader to install the ROM?
samavedam_vijay said:
@Ben Ling Thankyou! One more question before I installed the 4.3 ROM which you mentioned, do I need to unclock the bootloader to install the ROM?
Click to expand...
Click to collapse
no

[Q] Relock the bootloader and then unlock it again ?

Hello.
I searched some but i could not find the answers so hopefully i can get them in this post.
Well what i was wondering about is: I have unlocked my bootloader the official way. Let´s say i wanna relock it again, flashing a stock kernel.sin and using flashtool to relock it.
What method is then used to Unlock it again if you would wanna do that ? And i dont want guesses here i want solid facts of what works and not.
/Jonas740
I just use FlashTool to unlock and relock after officially unlocking it the Sony way. I haven't experienced anything odd or harmful doing it this way. Seems to be nice and safe. Currently my Z1 is rooted, stock kernel, dual recovery installed and bootloader locked and it's working great!
dual `?
GR00VY GH0ULIE said:
I just use FlashTool to unlock and relock after officially unlocking it the Sony way. I haven't experienced anything odd or harmful doing it this way. Seems to be nice and safe. Currently my Z1 is rooted, stock kernel, dual recovery installed and bootloader locked and it's working great!
Click to expand...
Click to collapse
Dual installer recovery ?
Im kinda newb but wont root go away if you apply stock kernel ? what kernel are you using. had a hard time finding stock ones. Unless you mean to just extract from a ftf file.
Jonas740 said:
Dual installer recovery ?
Im kinda newb but wont root go away if you apply stock kernel ? what kernel are you using. had a hard time finding stock ones. Unless you mean to just extract from a ftf file.
Click to expand...
Click to collapse
On Locked Bootloader you can use Custom Roms with Stock Kernels as it is the only one kernel what you can use on Locked Bootlader.
Ye
eclyptos said:
On Locked Bootloader you can use Custom Roms with Stock Kernels as it is the only one kernel what you can use on Locked Bootlader.
Click to expand...
Click to collapse
Ye but do you extract stock kernels from the ftf´s available or will it just wipe the kernel if you flash a ftf from the big ftf list ?
Before flashing JUST the kernel from the Global Generic FTF posted here I flashed (in recovery from ADV Stock Kernel) NUT's dual recovery for Z1 from here: http://nut.xperia-files.com/
Then after stock kernel flashed I relocked bootloader in FlashTool and still have access to recovery if I need it (say I lose root) and can always reflash Update SuperSU from recovery and booyah!! Root restored though I never lost root but if I do I can get it back super easy!!
Jonas740 said:
Ye but do you extract stock kernels from the ftf´s available or will it just wipe the kernel if you flash a ftf from the big ftf list ?
Click to expand...
Click to collapse
I don't know what exactly you mean. If you want to keep your kernel you can flash any Stock FTF and exclude Kernel in Flashtool, that will wipe the system but the kernel will remain the one you have, it's called Dirty Installation.
If you have Custom Rom with Custom Kernel and you want, for example, relock your bootloader then with Flashtool flash the Stock Kernel only, how? Just use any Stock FTF, put it in Flashtool folder, select the FTF and exclude everything and leave just kernel clicked, it will flash just the Stock Kernel from the whole Stock FTF.
Done.

[Q]Just to be sure about rooting.

To get my device on a 4.4 rom with root i need to take the following steps:
- Downgrade to .534 with flashtool (I got [nut]version)
- Install latest Dual Recovery (z1 beta .123)
- Flash Prerooted firmware through recovery (Monx for example)
- Flash Stripped Kernel with flashtool (Nut .757 for example)
No need to backup TA then?
It look so simple, but it seems very complicated to me on the other hand.
Thanks for answering.
saintgein said:
To get my device on a 4.4 rom with root i need to take the following steps:
- Downgrade to .534 with flashtool (I got [nut]version)
- Install latest Dual Recovery (z1 beta .123)
- Flash Prerooted firmware through recovery (Monx for example)
- Flash Stripped Kernel with flashtool (Nut .757 for example)
Click to expand...
Click to collapse
Correct.
saintgein said:
No need to backup TA then?
Click to expand...
Click to collapse
No, If you will not Unlock Bootloader. ..but after get Root with Locked Bootloader you can do a Backup TA just in case you will Unlock Your Bootloader leater.
eclyptos said:
Correct.
No, If you will not Unlock Bootloader. ..but after get Root with Locked Bootloader you can do a Backup TA just in case you will Unlock Your Bootloader leater.
Click to expand...
Click to collapse
Thanks for the quick answer!
I'm not going to unlock the bootloader, thats why i asked about the TA backup. If i'm doing that in a few months, i can still do that then right?
And can i put the flashable firmware onto the sd card before downgrading? Or will the sd card be wiped?
saintgein said:
I'm not going to unlock the bootloader, thats why i asked about the TA backup. If i'm doing that in a few months, i can still do that then right?
Click to expand...
Click to collapse
Yes.
saintgein said:
And can i put the flashable firmware onto the sd card before downgrading? Or will the sd card be wiped?
Click to expand...
Click to collapse
Yes, you can. The SD will not be wiped.
I fixed it! Thanks for your help.

[Q] Relocking Bootloader, kernel, updating and more!

So, I'm on Central Europe 1 4.4.2, with doomlord kernel and root. I have a backup of my TA partition before unlocking bootloader.
I want to update to Central Europe 1 4.4.4, using the flashable zip that was posted and the stripped ftf.
Should I flash the stock kernel from FTF 4.4.2, restore my TA partition backup and update? Or update to 4.4.4, and after that restore my TA?
What are the bricking risks? Should I wipe everything? :crying: SO MANY DOUBTS
Why relock?
Just update by flashing the file
gregbradley said:
Why relock?
Just update by flashing the file
Click to expand...
Click to collapse
Word is x-reality and possible BIONZ are not working on 4.4.4....
dedei said:
Word is x-reality and possible BIONZ are not working on 4.4.4....
Click to expand...
Click to collapse
I have never noticed a difference.
Just update and then restore TA
dedei said:
So, I'm on Central Europe 1 4.4.2, with doomlord kernel and root. I have a backup of my TA partition before unlocking bootloader.
I want to update to Central Europe 1 4.4.4, using the flashable zip that was posted and the stripped ftf.
Should I flash the stock kernel from FTF 4.4.2, restore my TA partition backup and update? Or update to 4.4.4, and after that restore my TA?
What are the bricking risks? Should I wipe everything? :crying: SO MANY DOUBTS
Click to expand...
Click to collapse
If you want to go to totally "out of the box" device and have OTA update info and few other things you just said then yeah...
First flash ftf and stick kernel and then relock bootloader...
If you restore TA and leave custom kernel you could have serious problems...
Sent from my D6503 using Tapatalk
Just finished flashing 4.4.4 and stripped ftf without wipe or anything. omg I'm trembling lmao
funky0308 said:
If you restore TA and leave custom kernel you could have serious problems...
Sent from my D6503 using Tapatalk
Click to expand...
Click to collapse
No, there is no serious problem at all, you just need to flash a stock kernel via flashtool (In a stripped FTF or a full FTF) or via fastboot if you have the kernel.elf
So everything went smooth! Now i'm on 4.4.4 with root and locked bootloader BUT x-reality is not working LMAO. I'll try to install it now.
Edit: yep, it's definitely not working. I relocked bootloader for nothing! haha
gregbradley said:
No, there is no serious problem at all, you just need to flash a stock kernel via flashtool (In a stripped FTF or a full FTF) or via fastboot if you have the kernel.elf
Click to expand...
Click to collapse
Exactly what I said..
You have to flash stock kernel - there are many guys who relock bootloader on custom kernel - xda us full of stories like that..
They have toy now instead of expensive device..
Sent from my D6503 using Tapatalk
No, it's very easy to fix, just flash a stock kernel after relocking the bootloader, it does not brick the phone relocking in a custom kernel, it just gives you a boot loop which is easily fixable
Sent from my C6903 using XDA Premium 4 mobile app

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