Unfortunately, there are some AVS consoles with an unsupported mini-USB power/communications port. John Riggs, a well-known video game collector from the Washington area (he is on MetalJesusRocks' channel often), decided to try to fix a power port that had broken off his friend's AVS. This was the result :
There are so many obvious things wrong from this video, it really makes me weep. First, if you are going to work on a board with hot soldering iron, take it out of its housing before you go near the board with a soldering iron! Second, clean surface mount contacts of old solder before applying new solder. Third, do not try to solder if someone had poured hot glue over the port, clean the glue off first. Fourth, always use good flux on surface mount components. Fifth, RetroUSB will fix broken power ports or replace the board, send it back to get it replaced.
The only way this is going to get fixed now is if someone cut off a USB cable and wired it directly onto the PCB. The end result is going to look really unsightly. Good job helping your friend out (if it is his friend).