In order to replace the LCD we need to remove digitiser first, however, firstly disconnect 3 flex cables (2 for LCD and 1 for digitiser) from the main board.
Firstly disconnect the touch screen flex cable which is located next to a rail, which is on the opposite side of the battery. The black flex cable is connected to a daughter board and is 15.5mm in width. With that out of the way, disconnect LCD data flex cable, which is located just above memory card daughter board and is connected directly to the main board. It is orange in colour with black tracks showing through. Lift the latch on the FPC socket and remove the cable safely. The last flex cable that needs to be removed is located just below the speaker and is the inner flex cable, which follows through the frame to the other side. It is black in colour.
Place Nintendo Switch face down on the heating platform and set the temperature to 80C with timer to run for 10 minutes, this step is required to make sure the glue between digitiser and the shell softens and screen can be removed.
Once some time has passed and the glue is now soft, we can start removing the screen. Pickup a corner of the digitiser using screen removal tool. You can use one of the speaker slots to give you a kick start, however, ensure you don’t damage the cosmetic condition of the digitiser as we will be reusing it.
Carefully pry off the digitiser by using levers and picks and slowly cut through adhesive all around the screen. Take care with screen removing tools and do not slide them too deep to avoid damaging LCD itself. Also make sure you are aware where digitiser’s flex cable is and work around it to avoid damage to it.
Once the glue all around the screen has been peeled off, remove the digitiser completely. Keep in mind the flex cable has to come out via a cut out in the case.
Once old digitiser is removed, you most likely will have a lot of adhesive left on the shell, where the touch screen sits. Remove all of it as we will be placing new adhesive in there.