Originally Posted by Matrix
So i finally charged the battery of my 8800 through a friends blackberry since mine had issues. However now i popped in the battery and the the little led keep s flashing red. It goes for about 10 seconds on, 10 seconds off, forever and the phone is still off and refuses to turn on. What does this mean?
It's not a happy BB. You will need to wipe and reload the OS.
Start here: How do I wipe the BlackBerry using Jl Cmder? - BlackBerryFAQ
If that fails here: What to do next if Jl Cmder will not connect and wipe - BlackBerryFAQ
And then here: How do I upgrade the OS on my BlackBerry? - BlackBerryFAQ
Be patient and follow the instructions EXACTLY.