I broke my AT&T phone a few weeks ago, and Mrs. L.A. loaned me her old TracFone until my new Virgin phone came. I tried putting the SIM card from the Pantech phone into her LG (non-smart) phone, and got an error when I turned the phone on. Apparently TracPhone doesn’t like SIM cards from AT&T phones.
How can I get the phone numbers from the old SIM card?
Are you sure the phone stores contacts on the SIM card? If you had a smartphone, it’s guaranteed that contacts would not be on the SIM. Even if you had a featurephone, a SIM can only store a few hundred contacts so most phones would store contacts in internal memory by default.
The old phone was not a smartphone. It looks a bit like this, only not as advanced. ISTR taking the SIM card for it out of my old Motorola flip phone, and the numbers were on it.