See bobcat miner, reset miner

Hi,

i want to sell my bobcat 300. i have buy 5. for one i havent a place.

how can i reset it so that the new buyer can use it without problems?
should i use “reset miner” on the admin configuration modus when i type 192… on the browser?

will the name of mine miner deleted one the helium explorer?

can someone help me?
did someone do something like that?