pinephone pro don’t boot anymore :/ (I erased bootloader by mistake)

[elode]

It's labelled RESET on the original PinePhone (not Pro). It's RE on the Pro Explorer Edition. I don't know what the label on the Developer Edition was, but that requires shorting test points rather than pressing the button to change the boot order - hence the hardware change for the Explorer Edition.
https://wiki.pine64.org/wiki/PinePhone_Pro#Boot_order

People have sometimes confused an original PinePhone for a Pro, or aren't clear on which hardware version they have of either phone type, so when something isn't behaving as it should it's worth checking.

I bought a pinephone pro
The button is labeled "Reset".
On the box of the device, it is written: "Beta Edition".
Does that help?

Thank you...