So I replaced the battery on a flash cart. All good. Later that day, I noticed the saves weren't working anymore. I opened it up to discover the copper pad for Negative for the battery was lifted off the board. After an hour of fucking around I've discovered that the trace for the copper pad is actually underneath where it lied. The copper pad is broken. What can I do to repair this? Anyone good with soldering and PCB stuff? Right now I managed to solder the battery to the trace, but obviously that's not going to hold under stress.