Had a BlackBerry that seemed completely dead.
- Wouldn't charge
- Red LED would come on for 10 seconds then turn off
- Didn't start up etc etc
When plugged into a PC via USB (even with battery out) the PC would say "USB device not recognized".
I thought it was a goner! Not even jlcmder can connect to something that isn't recognized by the PC.
The solution? I took out the [factory] 128MB MicroSD card! Odd huh!!
All working great now
Thought i'd just post this in case someone else searches for the same error, might be an easy fix for you!