[cookiemarie1991]

hi there i bought a phone of my mate as he needed urgent cash anyway i factory reset the phone erased all data on it. set it up to how i wanted it no theirs no service/limited service i am fed up with at the min. its o2 network tried several sim cards and networks to make this work switching from 4g to 3g, and 2g only way i can access internet service is the wifi what works fine. i just cant receive messages, calls or internet data. where i am networks fine all other phones work ok tryed resetting the phone many of times researched many of things even air plane mode.

anyone help.

[Rukbat]

Was it originally on O2 and you're still using it on O2? If not, you'll have to change the APN to the values used by the carrier it's currently on.

[cookiemarie1991]

it is originally o2 i have tried a normal and 4g sim. how do i find out the apn?