K800i operation failedon application and games

i have an application which can solve the problem for my games and application folder.. but, i will not give it to you all. hjehe

the only solution is reprogram! using SETOOL!

had this same prob for one month.but it is now solved..........
u have 2 update ur phone software to solve dis..
but if u r using a unlocked version,u have to again unlock it(after the software update)
i think u can understand my englease..
software update available in http://www.sonyericsson.com/cws/support/phones/topic/updateserviceapplication/k800i?cc=gb&lc=en

i have k8ooi,when i go to games or application shown me operation failed.i have done master reset,plz help me.

i could not open my game and application, it will display operation failed, and then i try to reformat it, but it is not work. please help my problem.
games and applications are not open, if try to open that shown operation failed! how to solve this problem? please help vaen okay

when i wanna install game or other applications into my k800i, it gave me sad responses, it shows 'operation failed'. then i cry.

i can't open the game ..operation failed
what can i do...?

take the phone and have the firmware reflash

Yeah I'm having the same porblem. When i try to start any applications or games menu i get a pop up saying application failed. I'v formatted both my memory card and phone memory and reset the phone but to no avail> ARGGGGHHHH!!!

Can someone please send me the solution and if it iis a recurring problem in many K800is will i get my money back?

Possibly not enough memory free in the phone.
Delete some old txt msgs, browser history, browser cache and anything else you don't need.