I recently was given a G7 from my brother. I found some issues with the analogs, so I thought a firmware update would solve the problem. Instead all I got was a black screen and nothing more. I tried a second firmware (both are the official 4.2 and 4.4). When I used the 4.4 upgrade I got the black screen and now both my PCs cannot recognize it. It does recognize it but it connects and disconnects in a matter of seconds. PLZ HEEEEELLLPPPP!