Simplest way and also cost effective, imho, is just to obtain and install the applicable circuit board for the computer: See:
https://www.compupartsolutions.com/acer/55.g7tn5.001?page=11&limit=15
https://www.ebay.com/itm/New-Acer-Aspire-R5-571T-R5-571TG-Laptop-USB-I-O-Power-Button-Card-Reader-Board-/401316858597
or similar outlets for details
A teardown (aka disassembly) video at:
https://www.youtube.com/watch?v=PEZeN-br3Js&t=985s