[Bacchus15]

Silly question:

1- If i use the SIM card of a friend to boot on it, after following the instruction will the sim card (of my friend) will still be good for use with his carrier or will it kill the card?

2- I also have another card, brand new not activated to any carrier, can i use it (to unlock)?

thanks


p.s. never unlock any phone before so n00b