Develop Bugs

[TUTORIAL] Xperia M Bootloader Unlocking

Quick tutorial for unlocking & relocking the bootloader of the Xperia M
Warning!
This procedure will wipe the /data partition of your phone, so you will loose all ur stored data, settings. INTERNAL SDCARD will BE WIPED!!!
DRM keys WILL be lost forever SO TAKE BACKUP OF IT
Click to expand...
Click to collapse
Before you unlock Bootloader
Backup your TA partionHERE
Click to expand...
Click to collapse
STEPS TO UNLOCK BOOTLOADER
1) Get the IMEI code for ur device: type *#06# in phone dialer to find it out, note only the digits (no dashes)
2) download the fastboot package with usb drivers(GOOGLE IT)
3) Now Get the UNLOCK KEY FROM SONY from HERE
4 ) After u have verified that u can unlock bootloader, scroll to the bottom of the page and click "Continue"
you will get numerous prompts, read all info and if u agree click on "Accept"/"OK"/"Proceed"
finally u will get a "Create Unlock request" page, enter your IMEI (sometimes the last digit needs to be removed for this to work), name and email address
5) Extract fastboot_with_Android_USB_file.rar and open fastboot folder
6) Hold SHIFT and right click on the background of the folder Select 'Open command window here'
7) Connect your phone in fastboot mode (turn phone off, hold Volume UP button and plug in USB Cable) [make sure drivers are installed as explained above)
8) In the cmd windows type in fastboot.exe -i 0x0fce getvar version
If a value is returned (it will return 0.5), it means the phone is correctly connected
9) Type in fastboot.exe -i 0x0fce oem unlock 0xKEY and replace KEY with the key which u received earlier.
You're device should now be bootloader unlocked
Click to expand...
Click to collapse
NOTE:-
When i unlocked my bootloader from above steps i first got a bootloop but after flashing My kernel ELIxER i recovered from bootloop and phone started well.
My apps and Data on internal SD were been WIPED so Do a backup first!
Click to expand...
Click to collapse
Credits Doomlord

:good:
good job bro!
I just wanted to ask if we could unock the bootloader using flashtool so there's no chance of voiding warranty. As backing up TA would save DRM keys.

Yes u can unlock it using flashtool. I am windows 8 so i find unlocking with fastboot is easier and it just just cause 6 mb of data.
Sent from my Xperia Keyboard

aweosomeabhijeet said:
:good:
good job bro!
I just wanted to ask if we could unock the bootloader using flashtool so there's no chance of voiding warranty. As backing up TA would save DRM keys.
Click to expand...
Click to collapse
There is always chance to void your warranty...

alvinhochun said:
There is always chance to void your warranty...
Click to expand...
Click to collapse
I see.
Well I tried with flashtool it denied unlocking :silly:
I think it would be better to go with the official unlocking.
Thanks.

u should add the TA Backup guide also

WARNING :-
When i tried to restore my DRM keys my mobile went dead so be very careful with it.

icoolguy1995 said:
WARNING :-
When i tried to restore my DRM keys my mobile went dead so be very careful with it.
Click to expand...
Click to collapse
You need to restore the stock boot partition because restoring TA partition will relock the device or else you will soft-brick it. If you have a dump of it you can restore it before restoring TA partition, otherwise you need to reflash with flashtool or SUS.
This is what I learnt from other Xperia devices in general.

alvinhochun said:
You need to restore the stock boot partition because restoring TA partition will relock the device or else you will soft-brick it. If you have a dump of it you can restore it before restoring TA partition, otherwise you need to reflash with flashtool or SUS.
This is what I learnt from other Xperia devices in general.
Click to expand...
Click to collapse
Can you still use SEUS when you have unlocked the bootloader to restore the original firmware prior to re-locking bootloader?
I thought it would be via flashtool only, because as soon as you unlock the bootloader you lose access to PC companion and SEUS.
The reason I ask is I have an XPERIA X10i and you can use anything at any time and it doesn't care.(brilliant olde device)
With my XPERIA S, I only have flashtool, as SEUS and PC Companion (and Sony OTA upgrade) are 'lost' after the bootloader is unlocked.

Dr Goodvibes said:
Can you still use SEUS when you have unlocked the bootloader to restore the original firmware prior to re-locking bootloader?
I thought it would be via flashtool only, because as soon as you unlock the bootloader you lose access to PC companion and SEUS.
The reason I ask is I have an XPERIA X10i and you can use anything at any time and it doesn't care.(brilliant olde device)
With my XPERIA S, I only have flashtool, as SEUS and PC Companion (and Sony OTA upgrade) are 'lost' after the bootloader is unlocked.
Click to expand...
Click to collapse
Really? PC Companion can recognize my Xperia M. Haven't tried SUS restore but it should work, shouldn't it? FOTA updates are known to brick unlocked Xperia devices so I strongly advice you not to try it.
But anyway if you've already restored the TA partition you already have a locked bootloader

alvinhochun said:
Really? PC Companion can recognize my Xperia M. Haven't tried SUS restore but it should work, shouldn't it? FOTA updates are known to brick unlocked Xperia devices so I strongly advice you not to try it.
But anyway if you've already restored the TA partition you already have a locked bootloader
Click to expand...
Click to collapse
PC companion still can recognize your phone even you've unlocked your bootloader, but updating your phone with SUS / PCC will surely brick your phone.
The only way to restore to the original firmware is using Flashtool or EMMA :fingers-crossed:

underd0g said:
PC companion still can recognize your phone even you've unlocked your bootloader, but updating your phone with SUS / PCC will surely brick your phone.
The only way to restore to the original firmware is using Flashtool or EMMA :fingers-crossed:
Click to expand...
Click to collapse
I dont think Pc companion will brick your phone! I never heard of this things and yes updating through FOTA can definitely brick your phone. Although i recommend not to unlock bootloader unless you are an advance user or a developer.
Sony xperia M gives very good performance over stock so noo need of scripts and other stuff, and i hope someone will develop CWM for locked bootloader too.
Sent from my C1904 using Tapatalk 4

Guys where is the relocking guide?? I can only see the unlocking one.
||""Playing Asphalt™ 8 Airborne on my sgy. LoLz.
Joke of the year. Gameloft devs will die if they hear this. ""||

Here are device files for Flashtool with loader.sin file for success bootloader unlock/relock through Flashtool
C190X C200X
1. Unpack it to '/Flashtool/devices/' folder
2. Run Flashtool and select in 'Devices/Manage/Import' M or/and M Dual
3. Now your can use BLU button

Shkerzy said:
Here are device files for Flashtool with loader.sin file for success bootloader unlock/relock through Flashtool
C190X C200X
1. Unpack it to '/Flashtool/devices/' folder
2. Run Flashtool and select in 'Devices/Manage/Import' M or/and M Dual
3. Now your can use BLU button
Click to expand...
Click to collapse
I have NOT backed up my DRM keys.. and I have an unlocked bootloader...
I connected my XM SS to Sony PCC..
It did recognize my phone.. However it did not update it stating that I am using a modified software..
Flashtool (EMMA) also recognized my phone.. but dint allow me to update my phone..
And my phone is not BRICKED..
Can you be more descriptive on the exact instructions on how you can relock XM whose DRM keys are not backed up?
Has anyone tried this?
Please quote and reply and share the method if you have tried this on a C1904 XM SS and if it is working !!!!
Thanks

I have a question...
How will I be able to backup my TA partition if root is required? I have not yet rooted my phone. I only rely on official procedures because I have bricked my two other phones previously. Have you had root installed on your phone when backing up TA partition?

.vonpatrick. said:
I have a question...
How will I be able to backup my TA partition if root is required? I have not yet rooted my phone. I only rely on official procedures because I have bricked my two other phones previously. Have you had root installed on your phone when backing up TA partition?
Click to expand...
Click to collapse
To backup your TA partition you dont need root and this current thread has not mentioned anywhere that you need root
Please refer the FAQ section of this link for more clarification
http://forum.xda-developers.com/showthread.php?t=2292598

How to backup DRM keys guys? Is it enough backup TA Partition? I've already backup TA Partition, it contains 6 files.
Sent from my C2004 using Tapatalk

SK:) said:
How to backup DRM keys guys? Is it enough backup TA Partition? I've already backup TA Partition, it contains 6 files.
Sent from my C2004 using Tapatalk
Click to expand...
Click to collapse
Yes, You are set !

durveshthorve433 said:
To backup your TA partition you dont need root and this current thread has not mentioned anywhere that you need root
Please refer the FAQ section of this link for more clarification
http://forum.xda-developers.com/showthread.php?t=2292598
Click to expand...
Click to collapse
Well, the link says that in order to backup TA partition, root is required. That's where it got me confused.
Sent from my C1904 using XDA Premium 4 mobile app

[Read] Before Unlocking your Bootloader

It has been confirmed that unlocking the bootloader will infect and damage TA partition of Xperia M and you will lose your DRM keys forever and loose warranty too..
So it is necessary to backup your TA partition before unlocking the bootloader. After that we can always restore the TA partition and get the warranty back.
For this purpose DevShaft has created a tool that will help you backup the TA partition.So give him a thanks for his awesome work.
For more info you can check out his thread his thread
http://forum.xda-developers.com/showthread.php?t=2292598
How to??
1.Download Backup TA tool (https://github.com/DevShaft/Backup-TA/tags) thank to DevShaft after you download!!
2.Extract it and connect your device to pc normally
3.Double click and run Backup-TA.bat
4.Follow on screen procedure.
5.Do what you want backup or restore from it.
When you want to restore your TA partition make sure you are on stock kernel and rom to avoid further problems.
Good Luck
Note:Never restore TA partition from another similar or even a same model device cause it will hard brick yours.:good: Every device has its own TA partition!!!

There was another thread like this. Anyway we need to get a mod to pin either one.
This message was brought to you by my Sony Xperia M (C1905), using the XDA app.

asidspa Sacred
Is the stock ROM available on SE site?

Woah.. Good thing I was looking around a little more... Just got my xperia m (my first xperia phone) yesterday and crossflashed 4.2.2 from dual firmware now planning to unlock the bl... This post deserves a ton of thanks for newbies planning to unlock their bl
Sent from my C2005 using xda app-developers app

[Q] How to lock bootloader and restore TA(mmcblk0p1)?

Hi, is it any tutorial about locking bootloader an restoring TA.img?As I know to restore TA i beed to do smthing like
dd if=/sdcard/TA.img of=/dev/block/mmcblk0p1
How to lock bootloader?

Did you use the backup tool by DevShaft? If yes you can restore TA with that tool again.
If not I don't know... Maybe you can search in the Z forum, there you will find many instructions that also work on ZL. Good luck!
Xperia ZL, 4.2.2 Stock (.67), rooted

Solved

suleymanovemil8 said:
Solved
Click to expand...
Click to collapse
How did you do that?

CokeJunkee said:
How did you do that?
Click to expand...
Click to collapse
I had backup of my TA and just restored it)

suleymanovemil8 said:
Hi, is it any tutorial about locking bootloader an restoring TA.img?As I know to restore TA i beed to do smthing like
dd if=/sdcard/TA.img of=/dev/block/mmcblk0p1
How to lock bootloader?
Click to expand...
Click to collapse
Yesterday I executed the same code and my Xperia XA (F3111) was bricked!
https://forum.xda-developers.com/xp...bootloader-t3423654/post71125186#post71125186
suleymanovemil8 said:
I had backup of my TA and just restored it)
Click to expand...
Click to collapse
How did you restore TA without bricking your device?

lebigmac said:
Yesterday I executed the same code and my Xperia XA (F3111) was bricked!
https://forum.xda-developers.com/xp...bootloader-t3423654/post71125186#post71125186
How did you restore TA without bricking your device?
Click to expand...
Click to collapse
Some backup utility or dd worked for me. I don't remember much of the details though.

relock bootloader E6883？

who can give me a guide to relock back My bootloader to My z5 premium E6883？
im not see flash tool have E6883 model to relock...tq

See:
https://forum.xda-developers.com/z5-premium/help/xperia-z5-premium-dual-e6883-help-t3353950

pandan80 said:
who can give me a guide to relock back My bootloader to My z5 premium E6883？
im not see flash tool have E6883 model to relock...tq
Click to expand...
Click to collapse
why do u want to relock? do u have DRM KEYS/TA.IMG backed up somewhere in your pc ? to restore?
anways
with flashtool you can relock it and then unlock it again!
keep the original unlock key with you (just in case) or you can always ask sony for the keys

YasuHamed said:
why do u want to relock? do u have DRM KEYS/TA.IMG backed up somewhere in your pc ? to restore?
anways
with flashtool you can relock it and then unlock it again!
keep the original unlock key with you (just in case) or you can always ask sony for the keys
Click to expand...
Click to collapse
Hey, I want to put my Sony Z5 premium back to all factory to sell it, can you give me the steps to do that?

EMJI79 said:
Hey, I want to put my Sony Z5 premium back to all factory to sell it, can you give me the steps to do that?
Click to expand...
Click to collapse
if the bootloader has been unlocked it can never be fully restored. you can never lock the bootloader the way sony did.
All you can do is to wipe and flash untouched stockrom and sell it
for flashing use flashtool / fastboot modes. you can do google for tutorial. its easy.

What about drm?

EMJI79 said:
What about drm?
Click to expand...
Click to collapse
if you never took backup of your DRM then they are lost too! if you have taken backup then restore them manual. but whenever the buyer flash the device the keys will be lost too.

I have backed them up with TA backup

EMJI79 said:
I have backed them up with TA backup
Click to expand...
Click to collapse
then relock your bootloader and sell it off. if the new owner don't change anything then the keys will stay intact.
however, if you could guide the new owner about it and email them the keys also , it will be fair deal
because you cannot use these keys on any other device.

Should I lock the bootloader first or restore TA first?
Anyone?

Answer: restoring TA automatically locks Bootloader.
But it needs root, so first restoring TA then flashing stock ROM with Flashtool.

32.3.A.2.33 DRM Backup

With my last xperia cellphones (xperia Z1 and Xperia Z5) I didn´t mind about TA partition, but this time with the E6833 Dual, I´d like to have the chance of storing this partition. When I bought it it came with Marshmallow version but inmediatelly it began updating to 7.0.
I suppose I´m not the only one waiting for the new way of making a temporary root in order to save DRM.

Download flashtool and try to make a TA backup with that. If you cannot, you can always downgrade to MM again with it and then use the TA-backup at that time.

Hello downgrade to 5.1.1 with flasthool look my signature for link https://forum.xda-developers.com/crossdevice-dev/sony/iovyroot-temp-root-tool-t3349597

xrenoix said:
Hello downgrade to 5.1.1 with flasthool look my signature for link https://forum.xda-developers.com/crossdevice-dev/sony/iovyroot-temp-root-tool-t3349597
Click to expand...
Click to collapse
Hi there mate, just wanna ask....after i downgrade it then backup TA, unlock bl, then upgrade back to newest firmware,then root.after rooting,can i restore TA??? Sorry for the noob question,this is my 1st time doing this TA thing

@RyanVIII yes you can restore TA on 7.0 with root but if you restore stock firmware after the root not working for this moment on locked bootloader

Zur75 said:
With my last xperia cellphones (xperia Z1 and Xperia Z5) I didn´t mind about TA partition, but this time with the E6833 Dual, I´d like to have the chance of storing this partition. When I bought it it came with Marshmallow version but inmediatelly it began updating to 7.0.
I suppose I´m not the only one waiting for the new way of making a temporary root in order to save DRM.
Click to expand...
Click to collapse
Downgrade your device to Android 6.01 using CORRECT FIRMWARE
use FLASHTOOL
once your are on android 6.x.x
use DIRTYCOW SCRIPT to EXTRACT TA.IMG (drmkeys / TAimg)
https://forum.xda-developers.com/crossdevice-dev/sony/universal-dirtycow-based-ta-backup-t3514236

xrenoix said:
@RyanVIII yes you can restore TA on 7.0 with root but if you restore stock firmware after the root not working for this moment on locked bootloader
Click to expand...
Click to collapse
ooooo...ok thanks for the info...

YasuHamed said:
Downgrade your device to Android 6.01 using CORRECT FIRMWARE
use FLASHTOOL
once your are on android 6.x.x
use DIRTYCOW SCRIPT to EXTRACT TA.IMG (drmkeys / TAimg)
https://forum.xda-developers.com/crossdevice-dev/sony/universal-dirtycow-based-ta-backup-t3514236
Click to expand...
Click to collapse
How can I downgrade without loosing DRM keys? Thanks anyway!

Zur75 said:
How can I downgrade without loosing DRM keys? Thanks anyway!
Click to expand...
Click to collapse
only unlocking bootloader will make your keys lost,
use flashtool Xperifirm , select xperia X F512x, SUZU and select the android verison "store front" / this one is android 6.01 when the device left factory.
flash it
use dirtycow script to xtract TA.img
now can upgrade to 7.1.1 (again use xperifirm/flashtool)
NOW you can unlock your bootloader and flash kernel to have root access

YasuHamed said:
only unlocking bootloader will make your keys lost,
use flashtool Xperifirm , select xperia X F512x, SUZU and select the android verison "store front" / this one is android 6.01 when the device left factory.
flash it
use dirtycow script to xtract TA.img
now can upgrade to 7.1.1 (again use xperifirm/flashtool)
NOW you can unlock your bootloader and flash kernel to have root access
Click to expand...
Click to collapse
Thank you, YasuHamed, I'm sorry but I'm an ignorant about this topic, my question is: is it possible to downgrade my firmware without unlocking the bootloader, won't that brick the device?

Zur75 said:
Thank you, YasuHamed, I'm sorry but I'm an ignorant about this topic, my question is: is it possible to downgrade my firmware without unlocking the bootloader, won't that brick the device?
Click to expand...
Click to collapse
no it wont.
if you have CORRECT STOCK FIRMWARE of the device at hand (EVEN OUTDATED) and you flash it with FLASHTOOL
it wont brick!
but make sure to use FSC script for anytype of FLASHING , you can downgrade your SUZU to android 6 from 7 and then extract drm keys!