[UnBrick Guide] T2 Ultra or Any Xperia Device

[rrajesh]

I have seen many thread of bricked devices on XDA, so I decided to write a guide to avoid brick and how recover.
Reasons

1. Locked bootloader
2. Flashing a incomptible kernel
3. Flashing a incompatible ROM
4. Interruption during flashing
   

Safety Tips

1. Unlock your device's boot loader before flashing any item.
2. Cross check kernel compatibility for target device.
3. Ensure your device and laptop battery is fully charged, it may prevent interruption during flashing session.
4. Keep a valid stock firmware file [FTF], download before modification with XperiaFirm Tool.

How to recover bricked device

1. Power off the device : Remove battery or press hard power off button(Not general power button). You can see this button under SIM panel(T2U case) or under back panel.
2. Plug device in charger and charge it about 1 hour,don't worry about notification led.
3. Now connect your device in flash mode and flash a stock FTF via flashtool.

Feel free to ask any question ..

Your one thanks HIT maybe encourage to write me more.... So

 

[HD2FORNICK]

Ummm, this device does not have a removable battery man!

 

[Chena_22]

Ummm, this device does not have a removable battery man!

He said for T2 ultra is on the sim panel dude

 

[jokenkil]

I have seen many thread of bricked devices on XDA, so I decided to write a guide to avoid brick and how recover.
Reasons

1. Locked bootloader
2. Flashing a incomptible kernel
3. Flashing a incompatible ROM
4. Interruption during flashing
   

Safety Tips

1. Unlock your device's boot loader before flashing any item.
2. Cross check kernel compatibility for target device.
3. Ensure your device and laptop battery is fully charged, it may prevent interruption during flashing session.
4. Keep a valid stock firmware file [FTF], download before modification with XperiaFirm Tool.

How to recover bricked device

1. Power off the device : Remove battery or press hard power off button(Not general power button). You can see this button under SIM panel(T2U case) or under back panel.
2. Plug device in charger and charge it about 1 hour,don't worry about notification led.
3. Now connect your device in flash mode and flash a stock FTF via flashtool.

Feel free to ask any question ..

Your one thanks HIT maybe encourage to write me more.... So

Is there anyway to fastboot the ftf file. The flashtool doesn't work for me

Sent from my Xperia T2 Ultra using XDA Free mobile app

 

[rrajesh]

Please keep thread clean, don't quote Complete post.

Have you checked drivers updated?
ftf files are suitable for flashing, not for fast boot.

Thanks