These are the instructions to flash Sony Xperia Firmware (ROM) on any Sony Xperia Smartphone and Tablet using the Sony Mobile Flasher Tool.
Requirements: Your device should have at least 30-40 percent of the phone battery to perform the flashing process.
Step 1: Download and install Sony Xperia USB Driver on the computer. If you have already installed the USB driver on the computer then, SKIP this step.
Step 2: Download and extract Sony Xperia Firmware (ROM) on the computer. After extracting the firmware, you will be able to see the following files:
Step 3: Download and install Sony Mobile Flasher on the computer. If you have already Installed the Sony Mobile Flasher, then SKIP the step.
Step 4: Once Sony Mobile Flasher is installed, Open It (C:drive > FlashTool).
Step 5: Once Sony Mobile Flasher is launched, you will be able to see following screen:
Step 6: Now, Click on Flash Button.
Step 7: Now, you will able to see the Bootmode Chooser dialog box. Select Flashmode and Click on OK button.
Step 8: Now, Click on the Load button and locate the Xperia Firmware (ftf file).
Step 9: Select the loaded firmware.
Step 10: Click on Flash Button to begin the Flashing process.
Step 11: Turn OFF your Sony Xperia Device.
Step 12: Press and Hold Volume Down button and Connect the device to the computer using the USB cable.
Step 13: Once your device is successfully connected to the computer, you will be able to see Added message in Sony Mobile Flasher tool.
Step 14: Now, Flashing will begin automatically and may take 5-10 minutes to complete.
Step 15: Once Flashing process is completed, disconnect the device from the computer and Turn it ON.
[*] Data Loss Process: Flashing Stock Firmware using the Sony Mobile Flasher tool will delete your personal data from the device. So, take a backup of your personal data before following the above tutorial.
[*] Sony Xperia Stock Firmware: If you are looking for the original firmware for your device then head over to Download Sony Xperia Stock Firmware page.
[*] Sony Xperia USB Driver: If you are looking for the original USB Driver for your device then head over to Download Sony Xperia USB Driver page.
[*] Credits: Sony Mobile Flasher Tool is created by androxyde (developer). So, full credit goes to him for creating the application.