HOW TO UNBICK/FLASH OR UPGRADE SONY XPERIA ANDROID DEVICES

 

  

Note 

Your phone battery should be at least 35% before you perform this process 

I AM NOT RESPONSIBLE IF YOU RUIN YOUR PHONE IN ANY WAY 

USE AT YOUR OWN RISK 

Download and install FlashTools from here. 

Install Sony drivers. 

The drivers are located (After installing FlashTools) inside this directory -- C: /FlashTool/Drivers. 

Run Flashtool-drivers.exe file, and select only fastboot drivers and flashmode drivers (Last two options)." 

Download Sony Xperia Stock ROMS 

Make sure you download the exact ROM of your device. 

After download, extract the .zip or .rar file to get a .ftf file (flash file) 

Now move the .ftf file to  C: /Flashtools/Firmware folder 

If you are using the latest version of Flashtools, you will need to put the firmware in C:\Users\YourUsename\.flashTool folder 

NB: You can always change that default firmware folder. Click on File and select Change user home then choose a new folder.  

Open the Flashtools and click the flash image at top left. Now select "Flashmode" and then click "OK" 

 

 On the next window, select the ROM you want to flash and click "OK" 

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

 

A pop up will appear telling you to turn off your device. 

Now turn off the device hold >> Back button << and connect it to PC so that Flashtools will detect the phone in flashmode 

If you are with a new Xperia device, you will need to hold Volume down button. 

 

Flashing process will begin.  

A progress bar will be seen at the bottom. 

Wait for the process to finish. This might take a while depending on the size of the ROM 

Remove the USB and reboot the device. 

First time boot after this process will be longer than normal.