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BlackBerry® OS Smartphones

New Member
Posts: 1
Registered: ‎01-13-2014
My Device: Blackberry Curve 8520 Smartphone
My Carrier: MTN Cameroon

Problem with my blackberry curve 8520 smartphone

Since few days ago, the keyboard of my blackberry is not responding again and when i enlight the phone this is the message which appear: App error 523 reset

I need your help to solve this problem please.

Guru II
Posts: 21,856
Registered: ‎04-01-2008
My Device: BlackBerry PRIV; BlackBerry Z30, Z10 and Q10 w/OS; PlayBook w/OS
My Carrier: AT&T

Re: Problem with my blackberry curve 8520 smartphone

See if you can boot the device into safe mode. Remove the battery. While holding down the back key reinsert the battery. Continue to hold the back key for another 20 seconds. The device will then boot into safe mode. If it boots up then you'll want to delete all third party apps or whatever you might have installed that caused the problem. If it doesn't boot up then here is KB that gives instructions on what to do:


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