HOW TO FLASH SONY XPERIA ANDROID DEVICES

HOW TO UNBICK/FLASH OR UPGRADE SONY XPERIA ANDROID DEVICES

REQUIREMENTS AND STEPS

Battery of atleast 40%

1. DOWNLOAD and install FlashTool.
2. Install Sony drivers(The drivers are located (After installing FlashTools) inside this directory -- C: /FlashTool/Drivers.
3. Run Flashtool-drivers.exe file, and select only fastboot drivers and flashmode drivers.

4. Download Sony Xperia Stock ROMS.
5. If packed, extract the .zip or .rar file to get a .ftf file (flash file)
6. Move the .ftf file to  C: /Flashtools/Firmware.(If folder doesnt exist, create it)

7. Open the Flashtools and click the flash image at top left.

8. Select "Flashmode" and then click "OK"

9. On the next pop up, select the ROM you want to flash and click "OK"

10. Flashtools will prepare the files for flashing. This might take a while.

11. A pop up will appear requesting to turn off device.
12. Turn the device off 
13. Hold >> Back button OR Volume Down on the device <<  and connect the USB cable to the computer so that Flashtools can easily detect the device.

14. Flashing process will begin. A progress bar will be seen at the bottom.
15. Wait for the process to finish. This takes a while depending on the size of the ROM.

16. Remove USB and reboot the device when flash is complete (First boot takes longer time)

17. Done.