Thanks to Tim, N8NQH for sharing a possible 60-cent fix for the loss of memory problems plaguing some Wouxun radios. He’s created a great little resource page for those looking to tackle this repair. According to him, the problem is a little 8-pin DIP surface mounted 24C64 serial memory IC.
Please note, however, that he makes it very clear that this repair is made at your own risk! Your mileage may vary, but at least it’s a possible starting place.