OK HERE"S THE DEAL

1.Downloaded a 3rd Party App
2.Got a reset error (503)
3.Uninstalled and Reinstalled OS 4.1 (I have a BlackBerry 7290)
4.Tried running the APP LOADER
5.Couldn't connect device to the computer via USB
6.Tried the Battery Trick where you take the Battery out of the BlackBerry and then connect it but didn't work


Is there anything that i can do to get my blackberry working?

PS: MY blackberry won't even fully start up... it just shows a window with 503 error

Use JL_Cmder to wipe the OS and reinstall again.

I tried doing the JML_CMDER but my blackberry isn't connecting to the computer through USB.