By -

Unlocking the bootloader of your Android device increases your freedom on the device but possess a great risk of losing the device’s warranty. But, if you have taken a TA backup before you unlocked your device’s bootloader, you can simply restore the backup to regain the old state, i.e. it relocks the bootloader, thus giving back your warranty.

Now, here’s something useful for the Sony Xperia lineup. It was just a few months before the company came up with an official bootloader unlock tool for their devices. Though being official, unlocking the bootloader still eliminates the DRM (Digital Rights Management) keys included in the Xperia devices, which in turn disables the OTA update capabilities and many other features.

BONUS TIP : What is Bootloader and Why to Unlock it?

Relock Bootloader of any Sony Xperia Device With Backup TA

Now we have a common tool to relock the bootloader of most Xperia devices. XDA senior member DevShaft has come up with a tool named Backup TA which enables you to backup and restore the TA partition of your Xperia device. Now you can easily backup the TA partitions of your device before unlocking the bootloader and restore it whenever you wish to do so. Restoring the TA partitions will get back the DRM keys and relock the bootloader of your device. To use the tool you’ll need a Windows PC.

The following devices have been confirmed to be compatible with the tool :

  • Sony Xperia Z
  • Sony Xperia ZL
  • Sony Xperia ZQ
  • Sony Xperia ION
  • Sony Xperia S
  • Sony Xperia SL
  • Sony Xperia SP
  • Sony Xperia T
  • Sony Xperia TX
  • Sony Xperia P
  • Sony Xperia L
  • Sony Xperia U
  • Sony Xperia Sola
  • Sony Xperia Tablet Z

Even if your device is not listed, you could give it a try. The tool will tell if its not supported.

NOTE: Sony Ericsson Xperia series are not supported.

Things to note before using Backup TA :

  • You need a rooted device.
  • Use your own backup. Trying to restore with another person’s backup hard bricks your device.
  • You can relock the bootloader only if you restore the backup you took before attempting to unlock it.
  • It’s better to be on the stock ROM and kernel while restoring, else you may get your device soft bricked (Simply flash the stock ROM using PC Companion if that happens).

For download links and further details, move over to the original thread at XDA. You could also post your queries there.

Subscribe to our feed using the subscription box on the right, follow us on twitter or Google+ or like us on Facebook for more interesting shares.