Just skip removing the “side button connector” as you may instead sever the small solder connections to the socket. It’s not a necessary step and is more dangerous than anything.
Fingernails are all you need to free the glass from its magnetic hold. If you don’t have them, slip something thin and plastic, like a spudger, at a top corner.
On reassembly, before you bolt down the logic board, make sure all the cables that plug into it are routed correctly. Better yet—plug them. As well, make sure the HDD/SSD’s SATA cable is routed correctly or else the mainboard won’t sit flush, which will be noticeable when you try to remount the optical drive/gpu fan.
DITCH THE BRACKET! It's unnecessary, as the cable will never come loose under ordinary use. The bracket is also a danger in that if you open the case too far, the TouchID cable could break; without the bracket the cable will detach. Finally, reattaching that bracket is a nightmare. My wife, who drops her phone a lot and requires several new screens a year, has never had her bracket-free cable come lose.
DITCH THE BRACKET! It's unnecessary, as the cable will never come loose under ordinary use. The bracket is also a danger in that if you open the case too far, the TouchID cable could break; without the bracket the cable will detach. Finally, reattaching that bracket is a nightmare. My wife, who drops her phone a lot and requires several new screens a year, has never had her bracket-free cable come lose.
