New Android 4.1.2 Jelly Bean firmware update has been released for Sony Xperia SL and Acro S, featuring a number of bug fixes for both devices.

Sony Xperia SL & Acro S Android 4.1.2 New Update

Sony released a new update with build number 6.2.B.0.211 and believed to have numerous bug fixes for both Xperia SL and Acro S. It features Android 4.1.2. Jelly Bean OS and is currently being rolled out to Middle East and Russia. Soon, other regions will receive the update as Sony releases it gradually.

The firmware update features:

  • Android 4.1.2 Jelly Bean OS features
  • Numerous bug fixes for Sony Xperia SL and Acro S
  • Google Now
  • Project Butter
  • New experience for WALKMAN, the Album and the Movies applications
  • Improved lock screen functionality
  • Resizable widgets and improved personalisation
  • Control of mobile data consumption improved
  • Clear of overview of your apps on 'Recent Apps' button

Pre-rooted Firmware with ClockworkMod Recovery

XDA developer member DooMLoRD posted a pre-rooted firmware version of the Android 4.1.2 Jelly Bean 6.2.B.0.211 ROM with a ClockworkMod recovery. According to his post, the firmware can be flashed to both LOCKED and UNLOCKED boot loader, using stock or custom recovery.

Be reminded never to flash the ROM to any other devices, except for Xperia S LT26i and Xperia SL LT26ii and it will restore the device to its factory settings, wipe all data and cache partitions.

Requirements:

  • Sony Xperia S or SL with locked or unlocked boot loader
  • Android 4.0 Ice Cream Sandwich stock ROM with .45/.50/.55 build number or Android 4.1.2 Jelly Bean with .200 build number
  • Any existing recovery on your phone

Installation Procedure:

1. Download the ROM made by DooMLoRd and save it to your computer.

2. Copy and paste it to the SD Card of your phone.

3. Make sure that the /system partition is unmounted.

4. Select the ROM/ZIP you have copied on the SD card and install it.

5. Go back to the main menu of the recovery menu and reboot the system.

6. The phone will reboot automatically and may take a few minutes, do not interrupt the boot.

7. During reboots you may see a "flashing firmware screen", let it proceed. Never disrupt the process.

Congratulations! You have a new Android 4.1.2 Jelly Bean with build number 6.2.B.0.211 that is pre-rooted and pre-installed ClockworkMod recovery. For any questions, send your feedback to the XDA Developers Original Thread.