[How-To] Unlock the bootloader of xperia devices

[mihahn]

actually i have WT19_4.1.B.0.587_Kernel that is in .ftf (extension) and for fastboot flash mode i'll need boot .img extension so should i make ftf into .img format via nero image burner ?

No, you can flash the kernel using flashtool in flashmode. Click on the flash -> flashmode -> select the kernel -> hit okay -> turn off your phone, hold volume down and connect the device -> it will flash the kernel.ftf and then you're done

To flash a custom kernel, use fastboot tools or flashtool. In flashtool click the flash -> fastboot mode -> connect phone in fastboot mode (volume up) -> select kernel to flash -> select the boot.img -> wait a few seconds -> boot in cwm and install the rom

It's really easy, but you may get more information if you read my guide :good:

 

[giri.sahu94]

yeah thanks i am gonna unlock bootloader via SE unlock bootloader wish me luck

 

[mihahn]

actually i have WT19_4.1.B.0.587_Kernel that is in .ftf (extension) and for fastboot flash mode i'll need boot .img extension so should i make ftf into .img format via nero image burner ?

Okay tell me if it's unlocked and working then

Sent from my Nexus 7 running Android 4.2.2

 

[giri.sahu94]

i guess i have done it ....here's log of SE Bootloader_Unlocking_Relocking
...
(bootloader) Unlock phone requested
(bootloader) Erasing block 0x00000a00
(bootloader) Erasing block 0x00000b00
(bootloader) Erasing block 0x00000c00
(bootloader) Erasing block 0x00000d00
(bootloader) Erasing block 0x00000e00
(bootloader) Erasing block 0x00000f00
OKAY [ 4.581s]
finished. total time: 4.581s

then is restart my device it was stuck after animation of walkman ....then i pulled battery then again i tried to start it was successfully started...
now have i unlocked bootloader ?

 

[Vatsal]

i guess i have done it ....here's log of SE Bootloader_Unlocking_Relocking
...
(bootloader) Unlock phone requested
(bootloader) Erasing block 0x00000a00
(bootloader) Erasing block 0x00000b00
(bootloader) Erasing block 0x00000c00
(bootloader) Erasing block 0x00000d00
(bootloader) Erasing block 0x00000e00
(bootloader) Erasing block 0x00000f00
OKAY [ 4.581s]
finished. total time: 4.581s

then is restart my device it was stuck after animation of walkman ....then i pulled battery then again i tried to start it was successfully started...
now have i unlocked bootloader ?

Its a wrong kernel wrong rom combo. Did you use tool? If yes
Flash custom kernel of ur respective rom
Ics kernel-ics rom
Gb kernel- gb rom
Jb kernel- jb rom
And yes ur bootloader is unlocked jst flash kernel of ur rom. And reboot it will boot

Sent from my MT11i using Tapatalk 2

 

[giri.sahu94]

so can i use this stock kernel ( WT19_4.1.B.0.587_Kernel ) for installing this ROM http://forum.xda-developers.com/showthread.php?t=2196841

 

[mihahn]

so can i use this stock kernel ( WT19_4.1.B.0.587_Kernel ) for installing this ROM http://forum.xda-developers.com/showthread.php?t=2196841

It could work as it's told in the thread it should work, but I'd use one of the custom kernels recommended there

Sent from my Nexus 4 running Android 4.2.2

 

[giri.sahu94]

now again i did Wipe data, cache, format system, data, cache, dalvik cache etc. then i restart into recovery mode >install ZIP from SD-Card>select ROM click home button for installation but it shows installation aborted...why

 

[mihahn]

now again i did Wipe data, cache, format system, data, cache, dalvik cache etc. then i restart into recovery mode >install ZIP from SD-Card>select ROM click home button for installation but it shows installation aborted...why

I don't know why, if there was no error code. Search or ask in the thread of the rom

Sent from my Nexus 4 running Android 4.2.2

 

[giri.sahu94]

can i use ROM http://forum.xda-developers.com/showthread.php?t=2277199 in wt19i

 

[mihahn]

can i use ROM http://forum.xda-developers.com/showthread.php?t=2277199 in wt19i

Of course, but remember flashing a jelly bean kernel before. It will work

Sent from my Nexus 4 running Android 4.2.2

 

[giri.sahu94]

i am unable to find jelly bean kernel help

 

[mihahn]

i am unable to find jelly bean kernel help

Just search in development section there are many jelly bean kernels

Sent from my Nexus 4 running Android 4.2.2

 

[giri.sahu94]

hey i have downloaded xKernel v9.587-D - from http://forum.xda-developers.com/show....php?t=1544513 should i try this kernel for your Super Jelly Bean 5.5 coconut ?

 

[mihahn]

hey i have downloaded xKernel v9.587-D - from http://forum.xda-developers.com/show....php?t=1544513 should i try this kernel for your Super Jelly Bean 5.5 coconut ?

No because as far as I know it's an ics kernel. Search for a jelly bean kernel, for Android 4.1.2

Sent from my Nexus 4 running Android 4.2.2

 

[tranmere]

Thank god track id keeps working after unlocked it with second method

Sent from my ST18i using xda premium

 

[anandrd]

xperia mini st15i not switching on

friendz i have xperia mini st15i updated to ics4.0.4
my mobile is not starting up friend this problem began when i tried to turn on bluetooth and after that my mobile started rebooting continuously
after that i unlocked my bootloader by test point method then my mobile started working finely then same problem arised again
after that i tried flashing my mobile using the same unlock BL s/w and also using s1 flashing tool after that no signs light glowing in display my led also glows for few seconds and then turn off
Help me please

 

[giri.sahu94]

rply

have you unlocked bootloader and rooted your device...?

 

[anandrd]

yes

have you unlocked bootloader and rooted your device...?

yes dude i've unlocked bootloader and rooted using this kit ->DooMLoRD_v1_Xperia-2011-ICS-ROOT-emu-busybox-su

 

[giri.sahu94]

reply

then try to flash your device with any supportable custom kernel using fastboot mode in flashtool ...