Antwort auf: Abstecken von trezor Hardware Brieftasche
While I’m not sure about staking ETH I routinely stake ADA using my coins held in a Trezor account. While I can’t help with the issue you are asking about, if you decide to buy some Cardano staking couldn’t possibly be easier and it’s completely safe and never locked.
I do hope you find out the real answer to your question and I’m sorry I don’t know enough to help.