How-To: Update A Sony Xperia Sola MT27i To Android 5.0.2 Lollipop Using CM 12 Custom ROM

Update A Sony Xperia Sola

Sony Xperia Sola may be a legacy device, but it’s one of the few legacy devices that’s going to have an unofficial Android 5.0 Lollipop update. The update, based on unofficial Android 5.0.2 CyanogenMod 12 custom ROM, is not an official Sony release, rather it’s a custom firmware built from the source code.  This is why those devices which are no longer supported by manufacturers can be updated to the latest Android versions.

Follow along with our guide to update your Xperia Sola MT27i to Android 5.0.2 Lollipop by using CM 12 Custom ROM.


  • Unlock Bootloader
  • InstallUSB Drivers for the Xperia Sola.
    • Download Flashtool.  After installingUSB Drivers, connect phone to PC using the USB cable to make sure the drivers are installed properly and connection can be established properly..
  • Installboth ADB and Fastboot drivers.
    • ADB Drivers tend to work best on Windows 7.
    • ADB and Fastboot Drivers might not work with Windows 8 or Windows 8.1.
  • Charge phone up to 50 percent. If the phone dies during flashing it could damage the device.
  • Back up all Contacts and Messages
  • Back up SMS Messages
  • Back up Call Logs
  • If a custom recovery is already installed, make a Nandroid Backup
  • Copy all media files and everything stored in phone’s internal memory to PC

Note: The methods needed to flash custom recoveries, roms and to root your phone can result in bricking your device. Rooting your device will also void the warranty and it will no longer be eligible for free device services from manufacturers or warranty providers. Be responsible and keep these in mind before you decide to proceed on your own responsibility. In case a mishap occurs, we or the device manufacturers should never be held responsible.


  • The latest build of CyanogenMod 12 Android 5.0.2 Lollipop ROM Xperia Sola MT27i Pepper here
  • Android 5.0 Lollipop Gapps here


Install CM 12 on Xperia Sola MT27i

  1. Extract the boot.img file from the ROM zip.
  2. Copy both the ROM zip andGapps zip to the phone’s internal memory.
  3. Turn phone off and then wait 5 seconds.
  4. While holding the volume up button, connect the phone to PC.
  5. You should see the LED turn blue, this means the phone is in fastboot mode.
  6. Copy boot.img to either Fastboot folder or the Minimal ADB and Fastboot installation folder.
  7. Open folder, then hold shift button on keyboard and right-click on mouse.
  8. Click Open Command Window Here.
  9. Type fastboot devices. Press Enter.
  10. You should see only one fastboot connected device. If there are more than one, disconnect the others or close Android Emulator. Make sure PC Companion is completely disabled.
  11. Type fastboot flash boot boot.img. Press Enter.


  1. Type fastboot reboot. Press Enter.
  2. While phone boots up, simultaneously press volume up/down/power. This will bring you to recovery mode.
  3. In recovery mode, select Install then go to folder  ROM zip
  4. Install the ROM Zip
  1. It’s recommended that you perform a factory reset and wipe the Dalvik cache after ROM is installed.
  2. Reboot phone
  3. Using the same method, installGapps zip
  4. . Factory reset is not required
  5. Reboot phone.


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