How to activate iphone cellular connection while in Greece


I have an iPhone 14 and arrived in Greece yesterday. It doesn't connect to cellular.  How do I activate my eSim?  I have no restrictions, and T-Mobile isn't answering their 24-hour care line.

2 replies

Userlevel 7
Badge +15

Your T-Mobile eSIM or an eSIM for a local carrier?  Do you have roaming turned on in your device settings?  If you are trying to use a local SIM from a carrier in Greece.  Is your iPhone SIM unlocked?  It would need to be SIM unlocked by T-Mobile to use a non-T-Mobile SIM.  The SIM Unlock Policy Requirements can be found at the following link.

Userlevel 3

I live in Greece most of the year.  All you have to do is make sure roaming is switched on.  Its all you need to do. Go to Settings > Cellular > Cellular Data is On.  Cellular Data Options = Roaming On.

Cell plans: Plan you’re on

Network Selection: COSMOTE

WiFi calling: On


You should be good from there.  You might have to repower your phone to have it grab the local network.