The stock fw is what get's sent through Sony PCC (pc companion app) when plugged into a Windows computer!! It may repair just by doing a few clicks with that app if the computer recognises it when plugged inwith USB cable!!! IMPORTANT STEP! does it get recognised when plugged in?
The flashing is done automagically by the SONY app.
Flashing using flashtool is the manual way (by hand) of doing the flashing (requires knowledge of what is required, a bit searching on these forums will produce many guides!).
You can even find the stock fw for that tablet in these forums s'where if it comes to you not being able to reapir it with Sony PCC.
Sent from my SGP321 using XDA Free mobile app
so i will explain my problem in detail a few days ago my tablet got stuck on the blue "wave" animation and i cant do anything with it. i have tried :
soft reset with no success
hard reset and also with no success
drained the battery and started the tablet but neither this step wan't successful
also iv tried to update the firmware using the update tool in the recovery mode but when updating there is an error :
opening update package
verifying update package
installation aborted.
iv read the q&a forum and also searched for the stock firmware and the flashing tool but i couldn't find the one for my tablet
tablet model Sony Xperia SGPT121IT/s
the tablet wasn't rooted nor usb debugging mode on so i don't know what to do any more. Also the tablet is out of warranty that's why im trying to fix it my self
PLS some son help me