Batteries, oh, batteries. The damage that you do.
This product simply replaces the 6116 SRAM chip. You can plug it into a socket, or solder it in directly. If the socket, it MUST be a new one.
This part will not repair an MPU that has other problems, or damaged traces. You must know what you are doing and have a working board first.
You get a 60 day warranty with replacement only.