@oyyodams That was it, weirdly on my 1:1 disk copy from one NUC to another I didnt include the whole BIOS folder, no idea why but hey, wont complain about such an easy fix! I didnt know that the MD5 were parsed from the readme.txt file ! Thanks again
@oyyodams yes indeed but the one I got came with the new switch support packaging and last firmware from factory, so it seems very recent, maybe there's a new BT chip or something new hardware wise that triggers that PIN code request, well anyway it's "fixed" but new owners may come across this issue too.
@substring I just updated the github with my hardware and a few important details (bios versions since there's a glitch with the recalbox manager temperature probe with the last bios). Also I hashed the folder and gonna send it to you on the chat (?).
Aha yes it is a M.2 SSD you guessed it, I have the adapter but wasn't sure it would have been faster than a 1:1 copy, well anyway, thanks a lot again for both your answers and your work, switching from a rp3 to a Nuc i3 seems very smooth for now ! Keep up the good work :)