I managed to reflow and reset the positioning of both a 80-pin and 100-pin B2B connector on some MNT RCORE* adapter boards that came misaligned from the fab in Shenzhen. @mntmn showed me how to do it last week and I did one then, and today I was able to fix two more boards and managed to do one of the harder ones that has an adapter on the reverse of the board thats in the way so you cant get full coverage on the hotplate

* https://shop.mntre.com/products/mnt-pocket-reform-upgrade-bundle #OSHW

@liaizon @mntmn I have done this (replace such plastic connectors on MacBook boards).
It requires quite some experience and "sense of touch." Not easy at all. Among the hardest stuff I have done.
Very well done !