07-23-2013 09:40 PM
07-24-2013 06:33 AM
First be sure that your Battery is charged enough to boot your device . Secondly , If you recently installed any application before this Problem started ? Think carefully may be any new game , wallpaper , theme or any app update you made !
If you have then try to boot your device on Safe Mode , On Safe Mode delete any application which you think might be responsible for this issue , from Options > Device > Application Manegement > locate and delete any newly installed 3rd party application , it might help in resolving your issue :
KB17877 : How to start a BlackBerry smartphone in Safe Mode
KB10040 :How to view or remove installed application on a blackberry smartphone
If above fails or you are unable to boot in Safe Mode then to recover you device you have load the OS again , But in this process will delete all user data from within that device .If you have a previous backup or using BlackBerry Protect then you can restore it from there.
KB10144 : How to force the detection of the BlackBerry smartphone using Application Loader
KB27956 : How to recover a BlackBerry smartphone from any state