hey everyone,
i had a vodafone C905 unlocked. I debranded it, and now im running a R1Fa035 firmware.
the problem is that i cant install applications. I couldnt even before the debranding.
I have this installation file to need for speed pro street and that installs fine, where as games directly off the SE website dont install and i get a message saying "Operation Failed" whenver i execute the .jar files.

what to do??

Try to confirm whether the jar files you're trying to install are corrupted or not.
Download any file from this forum and try it.

Try flashing both FS and MAIN again if the problem persists.