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
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Before you unlock Bootloader
Backup your TA partionHERE
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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
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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!
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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.
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There is always chance to void your warranty...
alvinhochun said:
There is always chance to void your warranty...
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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.
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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.
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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
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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:
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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
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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?
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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
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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
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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
Hi!
I have unlocked the bootloader of my Xperia M DUAL C2004.
Now I want to relock it. I have tried the flashtool method but it fails. Some loader.sin file missing error.
How to relock it?
I have taken Backup of Ta Partition.
Will flashing that relock my bootloader?
Please Do Reply If You Know The solution or if you know some1 who can help then suggest there name.
Its Urgent.
Anyone who wants to unlock his/her device's boot-loader first take a backup of TA Partition using this tool : Backup TA
Now Use This Thread to Unlock The Boot-loader : GUIDE
To Re-lock Follow These Steps:
1. Flash The Stock Kernel[Flashing the Stock Rom Completely and Full Data Wipe is recommended]
2. Now Use Your Desired Full Root Method.
3. Enable USB Debugging and connect to PC.
4. Use The Same TA Partition Backup Tool to restore the backup.
4. Once Done, Restart and Congratulation Your Boot-loader is relocked and ready for Warranty usage.
If This Helped You Then Please Press The Thank-you button. It really helps.
MODS If You think that this is helpful then please make it sticky so that other new comers can get help easily.
Hi All
When I bought my XM the fw version was .17.
Before unlock booltloader i was made a backup on TA partition.Then i was made ftf file with my stock firmware but yesterday i lost it
My Q is ,if i flash another firmware version .17 ,then can i restore the TA partition and relock BL again,or this can be make only for FW from who i'm bakced up TA partition?
I may be wrong, but you can relock your bootloader in any firmware, but if isn't the same version from when you did the backup then your phone will stuck in a bootloop after relocking, but if this happens, just use Sony Update Service to restore the correct firmware and get the phone working again after relocking...
Mhm only must be on stock kernel,thats right?No matter the fw version(.17 or .8)?
Spellbound_91 said:
Mhm only must be on stock kernel,thats right?No matter the fw version(.17 or .8)?
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Yes, I think
Today I successfully restored TA partition and relock BL without bootloop Thank you mbc07 You have BIG Thanks from me! :good:
Hi, I believe that I have returned my phone back to stock.
But I'm frankly not sure if the phone is still rooted, and if the boot loader has been relocked.
I did use the TA Backup program to restore my DRM keys.
Then I simply used Flashtool to flash the latest ROM .108 onto my Z1C.
Will my phone be accepted for warranty repair?
lamenramen said:
I did use the TA Backup program to restore my DRM keys.
Then I simply used Flashtool to flash the latest ROM .108 onto my Z1C.
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Click to collapse
If you did this you are ok for warranty.No need to worry...
Thanks! I appreciate the reassurance.
so the TA isn't related to stock rom version? or in other words, it isn't important if you backed up the TA while running 757 rom, it's okay to restore TA and flash 108 for exanole?
Sent from my D5503 using Tapatalk
just to be sure,.. restore TA on the version you made it from..
my 2 cents
HI guys, i am interested into installing CM11 on my Xperia S , and i have backed up my TA and stored them on my PC.This procedure though, requires unlocked bootloader. In case i want to revert my phone back to locked( stock ) status, what do i have to do? I mean, how will i flash this TA backup? in a locked or an unlocked status? and via fastboot with Flashtool?
kwstas 13 said:
HI guys, i am interested into installing CM11 on my Xperia S , and i have backed up my TA and stored them on my PC.This procedure though, requires unlocked bootloader. In case i want to revert my phone back to locked( stock ) status, what do i have to do? I mean, how will i flash this TA backup? in a locked or an unlocked status? and via fastboot with Flashtool?
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Click to collapse
You save your TA via? Flashtool or some script? Use the same program as you use to backup. If ftool - probably flash it via ft.
mamama07 said:
You save your TA via? Flashtool or some script? Use the same program as you use to backup. If ftool - probably flash it via ft.
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Click to collapse
Before i flash the restore file i have to be on stock Sony Fireware? And what must my bootlader status be like? Locked or unlocked?
Best idea its be on stock.
but why u ask about bootl? Now You have unlocked ;p So You must have unlocked? For restoring = re-lock it?