Sure, There is not the USB but i see there are pins for GPIOs and GND 5V / 3v3 so i are convinced soldering pins are Alright to flash after which to energy on :-) 0x000008a6481c0396d318c04417b4cdbc053aef1f d306a6f9808f073e455e11bddb206403d175874e327835dc06d6e81f325231b0 Wallets will often offer you a seed phrase you ought to publish down https://raretron.org