ok thanks guys, my problem is solved. I have reload my os to my BB and it works again, thanks a lot.
the problem was i didn't delete my vendor.xml file.
My second problem is, i have some excel files om my pc that i want to open at my blackbery, but how can i transver them to my blackberry, and how can i read it. what do i need?
The 7290 has very limited built-in memory. Please keep in mind that the more files you save in there, the less memory you have for your device's proper functioning.
Anyway, you'll be needing a 3rd party app to read your excel in there. I'm not sure which is the best one, I'm sure others can pitch in.
Regards.
8800 Locked BES
8800 Unlocked BIS
App:4.2.1.115 Plt:2.3.0.87