I spent the previous night getting Xperia SL back to stock 4.1.2 (Build Number 6.2.B.1.96)! That absolutely deserves recognition and some documentation.
After spending countless hours (experimenting with the ROMs) over the past year, I have realized that Stock Jellybean 4.1.2 is adequately stable (=something you would want to use on a daily basis) – and anything else isn’t just good enough! The developers are trying very hard to support it but lets face it – its ancient and now even the developers do not own it.
So that’s what I wanted to do – go back to the pavilion.
- Xperia SL is supposed to be an improvement over Xperia S. Didn’t quite become a hit.
- Most ROMs would only be found for “Xperia S” and would require changing the install script to either omit the device check or modify it. Therefore, the hardware capabilities also get limited to that of Xperia S – which feels somewhat frustrating.
- “Sony PC Companion” wouldn’t touch your device if your bootloader is unlocked.
- ParanoidAndroid/SlimBean: Nifty features. But highly experimental. (~Dec, 2013)
- Cyanogenmod 9.1.0: The last official stable release for the device.
- OpenSemc: (beta) Incredible effort by devs to get Kitkat 4.4.2 on SL (built on top of unofficial Cyanogenmod 11).
- MIUI v5: I couldn’t try this one on. #4.4.4 #ClosedSource
Getting Back to Stock
Things we need:
- flashtool: using Flashtool (available on unix/windows/mac), Stock FTF images can be flashed on the device without much ado. Locking/unlocking bootloader.
- Xperia SL LT26ii_6.2.B.1.96 Firmware FTF – firmware for India (but I don’t want to not be a cynic; so lets override this later)
- Sony PC Companion – your device, automatically suggests to install it – once you connect it to the PC (over USB)
- Emma: Official Flash Tool for Xperia devices. Meant to be used by developers for devices with unlocked bootloader. Doesn’t work with Xperia SL but works with Xperia S.
#1 Install and set Flashtool up
Put the LT26ii_6.2.B.1.96_Generic.ftf inside the firmware directory inside the installation. Run as admin. Click on the Bolt button on the left – “flash” > select “flashmode”
#2 Connect the device is flash mode
After step #1, the tool will request you to turn off the device and insert the USB wire while pressing volume down key – to go to the “flashmode”.
#3 Once the procedure completes, disconnect the USB and turn on the device. Ensure that all is well.
#4 Lock the bootloader now:
Turn off the device and hit BLU button (not blue) on flashtool. Connect the device in flashmode. Relock!
#5 Turn on the device and start Sony PC Companion.
Now the companion would recognize the device. Click on the device status. In the popup click on repair.
(Steps #3 – #5 are optional; Blame the security)
Now the big question is that what am I gonna do with the device now that its back to normal. Well I may have thought of something
Break something, struggle with it and then get that fixed. That does raise the value of the Object.