
Randy H. answered 07/21/19
Veteran Computer Graphics & Presentations Trainer
Depends on the Mac model, and version inside that model line.
Some versions don't let you do it at all. Others are as easy as unsnapping a small cover and remove/replace. Still others require you to essentially disassemble the entire system to remove/replace.
Without more definitive information, it's hard tellin' not knowin' ...