There are three ways Sony update:
If you want to install a Sony update using recovery – download the official update, reboot your phone or tablet into recovery mode and click “Install update from SD card”.
SP Flash Tool download and use guide will help you flash Android smartphone with MTK SOC. First of all, make sure that you have the MTK based smartphone, after this continue read SP Flash Tool Android update guide.
After installing MTK drivers, download SP Flash Tool Android firmware for your smartphone or tablet here
Unpack the SP Flash Tool Android upgrade for your phone and follow the instruction SP Flash Tool how to use:
Done! SP Flash Tool download and use is very simple for users. If you receive some errors – write it in the comments below and I’ll help you to recover your phone.Read more