Hi!
I got my NExT implant a week ago and I ran into a little problem.
I asked for the implant in my right hand, it was put in by a body modification artist I found on walletmor.
Everything went fine, but at the moment I can only scan the implant with flipper zero alone. I also have a proxmark3 easy device, but it does not see it in HF or LF mode. I was able to successfully clone one of my EM4100 access cards with the flipper, but the access control system cannot read it either.
Patience. One of mine took about two weeks. The other took just over three weeks. Whatever you do, do not try to write to it until you get consistent reads.
I would love it if you could screen capture a QR code and have it immediately decode it. That way you could grab QR codes from any app or screen (that allowed it).