No no, the head is just stripped. I’ll try with something to give traction (even though I think I already did), but your idea with some superglue is something I hadn’t considered. Cutting the screw head seems risky, but if everything else fails I guess it’s better to REALLY break the phone than it is to have it boxed away unused. Thanks for giving me hope. Next problem is where to find a replacement screw, but I’ll cross that bridge when I come to it ;)