We just upgraded our phone and unlocked the old unused phone, because we want to use it on a European Trip. I've read that people have been successfully taking unlocked android phones, buying a European SIM and using the phone both for calls and as a hot spot while in Europe.
The phone that we unlocked is an ATT Galaxy Note 2. It has the ATT hotspot software on it. I don't have a European sim to try at the moment. However, I'm worried that the ATT software won't allow the hotspot to be turned on once we get there. It wants to check the account to verify that using the phone as a hot spot is on the account.
I'd really like to get this all set now before we leave. Please help me to know what needs to be done so that we can use our old phone as we need to for our trip.