[Tutorial][Xperia M2] Bootloader Unlocking

Search This thread

umeshxda

Senior Member
Apr 16, 2014
604
188
I can make a kernel for you guys but I will need testers for that. Interested guys can PM me.
But first wait for Sony to release kernel source for this device.

Hey, sony released open source kernel files for m2 and m2 dual
single sim
http://developer.sonymobile.com/dow...es/open-source-archive-for-build-18-0-c-1-13/

dual
http://developer.sonymobile.com/dow...rchive-for-build-18-0-a-1-30-and-18-0-b-1-23/


start your work bro:highfive::good:
 

reaper7md

Member
Jun 19, 2012
21
5
Tutorial for quick unlock

First things first :-

1. What is bootloader?
> Bootloader is a piece of code that runs before android loads up. Bootloaders usually contain several ways to boot the OS kernel and also contain commands for debugging and/or modifying the kernel environment.

2. Benefits of unlocking bootloader?
> You can flash custom kernels/ROMs.
> You can ALWAYS root your device. (compelling, eh?)
> You can flash alpha builds of newer firmware ( generally newer android version ) which is under testing and not meant for end consumers.

3. Disadvantages of unlocking bootloader?
> You may void your warranty.
> You may loose some proprietary vendor software such as Bravia Engine, Download Music info etc. due to removal of DRM security keys.
> OTA updater may refuse to update your device and pop up a 'Device's software modified' message.

4. Can i unlock my bootloader?
> Go to dialer
> Type *#*#7378423#*#*
> Service info > Configuration
> Rooting status :
"Bootloader unlock allowed" - You can unlock your bootloader
"Bootloader unlock not allowed" - You cannot unlock your bootloader

Unlocking bootloader:

You can unlock bootloader in two ways:
1. Official way(Instructions Included)
2. Flashtool(Recommended)

1. Generate your unlock key by entering your IMEI. (To check your IMEI - *#06# )
2. After you have the key, use flashtool or cmd prompt to unlock. (easy?)
3. To verify, check rooting status :
"Bootloader unlock done" - Congrats, you've successfully unlocked your bootloader.
@Shivam Kuchhal

"Bootloader unlock allowed" - You can unlock your bootloader
"Bootloader unlock not allowed" - You cannot unlock your bootloader

I get info "Bootloader unlock allowed: No", so - I can or not unlock bootloader? because my message isn't "Bootloader unlock not allowed".
 

Kuato

Senior Member
Sep 30, 2012
877
402
nowhere
I Got bootloop after unlock bootloader and flash this,,,, HEEELP!!!!!!!!!!!!!!!!!!!!!!!!!


EDITED

I found the solutuon for bootloop after unlock bootloader,
First unlock the bootloader using Official or else, it will bootloop, then Flash the Stock firmware but JUST FLASH SYSTEM ONLY, after that flash the kernel and continue follow this tutorial, Regards :)
 
Last edited:

ishakcez

Senior Member
May 8, 2014
235
99
kayseri
Tutorial for quick unlock

First things first :-

1. What is bootloader?
> Bootloader is a piece of code that runs before android loads up. Bootloaders usually contain several ways to boot the OS kernel and also contain commands for debugging and/or modifying the kernel environment.

2. Benefits of unlocking bootloader?
> You can flash custom kernels/ROMs.
> You can ALWAYS root your device. (compelling, eh?)
> You can flash alpha builds of newer firmware ( generally newer android version ) which is under testing and not meant for end consumers.

3. Disadvantages of unlocking bootloader?
> You may void your warranty.
> You may loose some proprietary vendor software such as Bravia Engine, Download Music info etc. due to removal of DRM security keys.
> OTA updater may refuse to update your device and pop up a 'Device's software modified' message.

4. Can i unlock my bootloader?
> Go to dialer
> Type *#*#7378423#*#*
> Service info > Configuration
> Rooting status :
"Bootloader unlock allowed" - You can unlock your bootloader
"Bootloader unlock not allowed" - You cannot unlock your bootloader

Unlocking bootloader:

You can unlock bootloader in two ways:
1. Official way(Instructions Included)
2. Flashtool(Recommended)

1. Generate your unlock key by entering your IMEI. (To check your IMEI - *#06# )
2. After you have the key, use flashtool or cmd prompt to unlock. (easy?)
3. To verify, check rooting status :
"Bootloader unlock done" - Congrats, you've successfully unlocked your bootloader.
How to relock bootloader?
 
  • Like
Reactions: riyandroidz

kaktus283

Senior Member
Aug 15, 2011
93
37
Warsaw
I don't know why, but i can't unlock bootloader with Flashtool method because it stay's on "Connected in fastboot mode". Whatever, common method work perfectly with instruction from Sony site :)
 

OguzhanVarsak

Senior Member
Oct 19, 2012
831
108
Guys sorry for that but i cant do "use flashtool promt to unlock" part. Can someone explain me it? Thnx.


Sent from my iPhone using Tapatalk
 

Top Liked Posts

  • There are no posts matching your filters.
  • 8
    Tutorial for quick unlock

    First things first :-

    1. What is bootloader?
    > Bootloader is a piece of code that runs before android loads up. Bootloaders usually contain several ways to boot the OS kernel and also contain commands for debugging and/or modifying the kernel environment.

    2. Benefits of unlocking bootloader?
    > You can flash custom kernels/ROMs.
    > You can ALWAYS root your device. (compelling, eh?)
    > You can flash alpha builds of newer firmware ( generally newer android version ) which is under testing and not meant for end consumers.

    3. Disadvantages of unlocking bootloader?
    > You may void your warranty.
    > You may loose some proprietary vendor software such as Bravia Engine, Download Music info etc. due to removal of DRM security keys.
    > OTA updater may refuse to update your device and pop up a 'Device's software modified' message.

    4. Can i unlock my bootloader?
    > Go to dialer
    > Type *#*#7378423#*#*
    > Service info > Configuration
    > Rooting status :
    "Bootloader unlock allowed" - You can unlock your bootloader
    "Bootloader unlock not allowed" - You cannot unlock your bootloader

    Unlocking bootloader:

    You can unlock bootloader in two ways:
    1. Official way(Instructions Included)
    2. Flashtool(Recommended)

    1. Generate your unlock key by entering your IMEI. (To check your IMEI - *#06# )
    2. After you have the key, use flashtool or cmd prompt to unlock. (easy?)
    3. To verify, check rooting status :
    "Bootloader unlock done" - Congrats, you've successfully unlocked your bootloader.
    2
    I was going to ask this too, like blocking the bootloader again







    How to relock bootloader?
    If you backed up TA then just restore it, it will lock your TA.
    If didn't go to flashtool select UBL and relock!!
    1
    It seems you already have a recovery
    http://xdaforums.com/showthread.php?t=2746407:D;):p:)

    Sent from my GT-I8730 using XDA Premium 4 mobile app
    1
    Tutorial for quick unlock

    First things first :-

    1. What is bootloader?
    > Bootloader is a piece of code that runs before android loads up. Bootloaders usually contain several ways to boot the OS kernel and also contain commands for debugging and/or modifying the kernel environment.

    2. Benefits of unlocking bootloader?
    > You can flash custom kernels/ROMs.
    > You can ALWAYS root your device. (compelling, eh?)
    > You can flash alpha builds of newer firmware ( generally newer android version ) which is under testing and not meant for end consumers.

    3. Disadvantages of unlocking bootloader?
    > You may void your warranty.
    > You may loose some proprietary vendor software such as Bravia Engine, Download Music info etc. due to removal of DRM security keys.
    > OTA updater may refuse to update your device and pop up a 'Device's software modified' message.

    4. Can i unlock my bootloader?
    > Go to dialer
    > Type *#*#7378423#*#*
    > Service info > Configuration
    > Rooting status :
    "Bootloader unlock allowed" - You can unlock your bootloader
    "Bootloader unlock not allowed" - You cannot unlock your bootloader

    Unlocking bootloader:

    You can unlock bootloader in two ways:
    1. Official way(Instructions Included)
    2. Flashtool(Recommended)

    1. Generate your unlock key by entering your IMEI. (To check your IMEI - *#06# )
    2. After you have the key, use flashtool or cmd prompt to unlock. (easy?)
    3. To verify, check rooting status :
    "Bootloader unlock done" - Congrats, you've successfully unlocked your bootloader.
    How to relock bootloader?
    1
    @bravobs

    Install PC Companion, from Flashtool you need Flashmode and Fastboot drivers. You need to disable driver signature verification if you are on Windows 8.1 +.

    Good Luck.

    Sent from my D2303