What does Upgrading do?
If you upgrade your XPERIA you will put it on a later version of its firmware
Important!
If you downgrade your XPERIA you will lose all of your data, make a backup if everything goes wrong
How to Upgrade
1. Go to the firmware page
2. Download the firmware for your device
3. Download and install Flash Tool Download
4. Go to this folder Flashtool > Devices, open the folder that is your device and copy loader.sin
5. Download and install WinRar Download
6. Open the firmware you downloaded with WinRar and paste loader.sin
7. Copy your firmware to Flashtool > Firmwares
8. In Flash Tool click Flash device
9. Choose Flash Mode
10. Select your firmware and exclude Baseband
11. Connect your XPERIA in Flash Mode
12. Wait for Flash Tool to finish and disconnect from your computer and reboot
You have now upgraded your XPERIA
Method 2:
1. Open Sony PC Companion
2. Connect your XPERIA
3. If it says you have an update, update it, if you don't have an update you are running the latest version
2. Download the firmware for your device
3. Download and install Flash Tool Download
4. Go to this folder Flashtool > Devices, open the folder that is your device and copy loader.sin
5. Download and install WinRar Download
6. Open the firmware you downloaded with WinRar and paste loader.sin
7. Copy your firmware to Flashtool > Firmwares
8. In Flash Tool click Flash device
9. Choose Flash Mode
10. Select your firmware and exclude Baseband
11. Connect your XPERIA in Flash Mode
12. Wait for Flash Tool to finish and disconnect from your computer and reboot
You have now upgraded your XPERIA
Method 2:
1. Open Sony PC Companion
2. Connect your XPERIA
3. If it says you have an update, update it, if you don't have an update you are running the latest version