Blackberry 8520 wont boot
 

Hello!
So earlier today, my blackberry froze so I took out the battery to restart it, but it wont fully boot; it loads to about 60/65% of the way then just stops there. I've been trying this for hours and same thing happens every time.
I haven't recently installed any new apps (haven't in months) and I haven't recently dropped it either, nor was I out of memory. Was working perfectly fine up until this.
I've tried leaving it for an hour with out it's battery and still nothing. Also tried connecting it to the laptop and still stops booting at the same place.
I'm baffled and have no idea how to fix this! Any help would be greatly appreciated!
Thanks.

Re: Blackberry 8520 wont boot
 

Try to update/re-install OS.

Blackberry 9300 wont boot
 

hi my blackberry 9300 shows an app error 523 shortly after it boots. iv tried using the blackberry desktop app to reinstall the software, and its shows me "error, can not update software, thing and iv tried selecting the downgrade and the upgrade but i still get the same error .

Re: Blackberry 8520 wont boot
 

try this
KB24395-"Error 523", "App Error 523", or "JVM 523" appears on the BlackBerry smartphone

Re: Blackberry 8520 wont boot
 

do an upgrade using Blackberry desktop Manager

Re: Blackberry 8520 wont boot
 

Knottyrope has my vote