Proxmark not showing in COM port

[Pilgrimsmaster]

@lhopital

holding the button when plugging it in and waiting

This sounds like you are on the right track

did you follow this procedure?

FlexMT HF Reading Issues

I have had tons of problems getting various Easy models to load rrg properly… it honestly takes a slog of different variations to get it working… I have two different Easy models both with 512k and both required slightly different approaches… one of these approaches tend to work; hold button down, power up, keep holding, run pm3-flash-bootrom, once finished, let go of button but let it flash lights and do whatever the heck it wants to do, see if com port comes back eventually, if com port app…