If I purchased an iCloud locked logic board, is it possible to remove “things” from my clean board and replace on...

I went straight to the factory reset and unfortunately the device would still randomly shut down. Therefore, this is a hardware issue, more than likely but determining what piece of hardware is failing is difficult. My kids simply have to get used to it as well as yours, I expect.

Generally speaking and more often than not it is a matter of taking a blow dryer or the like to heat up the tape to remove. Takes patience. Don't want to break anything, naturally. Then a matter of taking a q-tip and alcohol to the touch sensor buttons and/or any sign of moisture or corrosion created from moisture gaining access to an area it is not supposed to. Highly likely you did not need another board BUT regardless, it fixed it and you don't have that issue anymore...