10-03-2014, 01:00 PM
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| | Re: HELP please blackberry 9790
Did you drop it or expose it to liquid or moisture? If so, hardware damage may be the problem.
Does the battery fit tightly in the compartment?
Are you using a genuine BlackBerry battery?
Do you use a memory card? If so, did you test with the memory card removed? A faulty card can cause weird behavior.
Did you install any apps immediately before the problem started?