Can you just switch SIM cards between phones?
You can often switch your SIM card to a different phone, provided the phone is unlocked (meaning, it is not tied to a particular carrier or device) and the new phone will accept the SIM card.
All you need to do is remove the SIM from the phone it is in currently, then place it into the new unlocked phone..
What happens if I take my SIM card out and put it back in?
Nothing bad will happen. If you take it out, it will say that there is no sim and you will lose the cell connection. It should come back on after you put the SIM card back in. If not, you may have to reboot the phone.
Can I use the same SIM card on two different phones?
It’s impossible for one simcard to work in two phones at the same time. First, you have two phones, one simcard. That simcard only can be put into one phone. … It’s impossible for one simcard to work in two phones at the same time.
Can you just swap SIM cards on AT&T phones?
If you have two AT&T phones, or two T-Mobile phones, you can transfer wireless service between them by moving the SIM card from one device to the other. You don’t have to take your phone to a retail store, or otherwise get any special permission to switch.