So, here is the scenario.
I have been using a trezor one to keep the bulk of my cold Sats for sometime. But recently,
- I saw some reviews of Trezor seven and keen to upgrade
- I kinda orange pilled someone to get started with their Bitcoin journey, just by coinos and some mobile wallet
So I was thinking of giving him my old trezor one (perfectly functional) and upgrade my to Trezor seven.
The question is, is it possible to do what I can call an NSA level wipe of the old Trezor before giving it away (so that the new owner can build his own wallet using it)?
Or will the old trezor remain a permanent backdoor to my stash no matter what I do?