SIM NOT SUPPORTED

[Regina]

Hi

I recently switched to Three from O2. I have an iphone X and when I put my three  in, it says SIM NOT SUPPORTED. 

I have tried to call O2 several times but no one is taking the calls (I;m guessing because of COVID-19.

My husband logged into his O2 account to request the phone is unlocked and they have said they will send instructions in 7 days! which means I won;t have a phone for a wekk, I also use it for my job as we are now working from home.

Is there anyone that can help with unlocking my phone. I actually thought all the latest iphones were already unlocked but clearly not.

Thanks

[MI5]

@Regina 

Keep trying your sim as it could happen at anytime.

[Regina]

Hi, thanks. It's so frustrating

Do you know if this is normal for an iphone X? i put it in my husband's samsung and it works fine. 

[MI5]

@Regina 

Yes, iPhones always used to lock to the first sim inserted.