Others say you need it for DBBT to see the Playbook. I found best results installing the Blackberry Desktop Drivers for windows 7, but not the suite of other programs that come along with itjust the drivers. And i used task manager and turned everything blackberry off until DBBT made the connection. Then I put it back on. See what works for you!
Software Link - https://bit.ly/36mmLVoHow To Flash All Blackberry Phones, Blackberry online flashing, Software Updates, Flash Blackberry Phone Online, How toI got a solid red LED light, but for the first time the flash (white light) on the back side of the phone would stay on constantly. I would have to pull the battery to get it off. After holding down the power/lock for 10 secs and the volume up & down several times, nothing seemed. to work to reset.6rJIFPr.