SE w810i

Hi all,
I got a SE w810i and after 6 months due to some reason unable to open games and application.(It do nothing when I ask it to).
Also when I try to install the jar or jad file it says 'Operation Failed'.
Please tell me how to resolve the problem.What I need to do?:(

THANKS.

you can flash it.

You could try first a master reset or update with SEUS. If it's not working, you should full flash your phone.

You have to flash only FS. I had a phone with that problem and i flashed only FS and the problem gone. But 1st thing make a backup of all your files and a backup of your contacts list

you could also try a firmware update & see if it would fix the prob