I did the whole repair but this part is the problem HELP !!! I unlocked it but it took me 1 hour to carefully pull out the HOME BUTTON RIBBON CABLE. It finally came out with tweezers but now I CAN'T GET IT BACK IN and as a result my touch I.D. won't activate. It seems there was a tiny bit of black tape overlapping the connector on the ribbon which I carefully cut off exposing only the connector on the ribbon itself but how the heck does it slide in before you lock it. It seems easy on Youtube videos but mine just doesn't slide in with hand or with tweezers. OR in fact is there another connector that controls the TOUCH I.D. ???

I've passed on the iOpener as suggested in these comments and have tried to use a hairdryer. heating on high at medium speed for 1 minute then trying the suction cup. heating for another minute then using the suction cup. Been doing this for 1/2 an hour but it isn't working. Need to take a break because I'm afraid I'm going to hurt in internal components of the iPad 6 (just trying to replace a dead battery) Any suggestions ???