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BlackBerry® OS Smartphones

New Member
Posts: 1
Registered: ‎03-24-2013
My Device: curve 8520
My Carrier: tesco

curve frozen on timer screen

hi was recently using my curve on a call, ended call and white screen appeared with message "app error" and a code i cant recall.  Now phone won't go past the white start screen with black timer, it automatically switches on and goes to this screen and will not turn on or off.  Cannot do anything with it.  Any help please

Hall of Famer III
Posts: 57,825
Registered: ‎11-28-2008
My Device: PRIV (6.0.1/AAG853), Z10/Z30/Q10 (, Playbook (
My Carrier: TMobile USA

Re: curve frozen on timer screen

Hi and Welcome to the Community!


It's a shame you can't recall the code...as that would give us the best information for the proper recovery steps for you...but, lacking that, I recommend that you attempt to boot into Safe Mode:

  • KB17877 How to start a BlackBerry smartphone in Safe Mode

It may take you multiple attempts to get the ESC key sequence (press/release/hold) correct, so be patient. When successfully into Safe Mode, see what happens.


If the behavior ceases, then think carefully...what happened just before this behavior started? A new app? An update? A Theme? Something else? Think carefully as the smallest change could be causal...and attempt to undo whatever that was.


But if the behavior continues or you can't even (after MANY attempts) even get it into Safe Mode, then you will likely need to try these more drastic recovery methods:

Do also keep in mind that some of those codes would indicate a physical hardware problem, for which no amount of internet-distance diagnosis or recommendations can be of any use. If such is the case, then only a qualified hardware technician, with the device in their hands, can give you a proper diagnosis and estimate.

Good luck and let us know!

Occam's Razor nearly always applies when troubleshooting technology issues!

New to the Community? Click here and also here for helpful guidance. Also please click here for additional helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions. If anyone has been helpful to you, please show your appreciation by clicking the button. Need a reference to BB10 OS/SR versions? Click here. Need a specific BB10 AutoLoader? Send me a private message.

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