05-30-2013 10:47 AM - edited 05-30-2013 11:03 AM
My BB 9790 can't recharge the battery.
It also keeps on rebooting.
I tried replacing the battery with a fully charged one.
It turns on but didn't last long. It turned off can restarted again.
It keeps doing this until the battery is drained.
When it is directly plugged to a power outlet,
I am sometimes successful in turning it on.
However, even it has been plugged for hours, when you disconnects the phone from the power source,
it turns off.
I've tried asking a technician to "reprogram" the phone but to no avail.
05-30-2013 02:17 PM - edited 05-30-2013 02:18 PM
Hi and Welcome to the Community!
While the BB is on the wall charger, I recommend that you attempt to boot into 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 (be sure to let the battery fully charge before testing further).
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 in Safe Mode, then you may need to consider more drastic actions -- WIPE, OS Reload, BBSAK Wipe/Reload, and the "Bare Bones" OS Reload Process. To prepare, you should be sure that you have a full backup to your PC...please review the Backup link in my auto-sig on this post for instructions.
You may also need the use of these tricks:
Do however understand that if the problem is the BB hardware itself (e.g., defective, damaged, faulty, etc.), then no amount of internet-distance diagnostics nor OS/software based fixes will be of any value.
Good luck and let us know!