07-18-2013 02:23 AM
I updated Blackberry World and Blackberry Messenger simultaneously. After rebooting, the phone goes on, does 'software security verification' then shows me a white screen that says 'App error 603' Reset'.
I got it to work once (I don't know how) and then I couldn't get into Blackberry messenger - I tried deleting it, but the phone wouldn't give me the option. Now it just constantly goes to the white screen.
Anyone know what I could try?
07-18-2013 03:00 AM
Welcome to BlackBerry Support Forums
Do you have a backup of your device ?
You can refer to this Knowledge Base to resolve your issue :
KB10144 : How to force the detection of the BlackBerry smartphone using Application Loader
After recovery , If you have a previous backup or using BlackBerry Protect then you can restore your data from there.
Additional Information :
KB23951 : "Error 603", "App Error 603", or "JVM 603" appears on the BlackBerry smartphone