If you have old linear modules this could be a disalligned thermal silicon pad, unfortunately I can’t find the guide for this…
Here is a linked video, the pad is visible on 18sec.
Here is how to disassemble:
If you have old linear modules this could be a disalligned thermal silicon pad, unfortunately I can’t find the guide for this…
Here is a linked video, the pad is visible on 18sec.
Here is how to disassemble: