Three UK APN Mobile Data and MMS Internet Settings in 2 min on any Android Device

https://www.apnsettings.org/uk/three-...


I don't have  Three  phone, neither I have  Three  Sim that's why after saving APN, I didn't get that APN option, but if you do have  Three  phone with  Three  sim you should see APN , check that APN listed there, restart the phone and you should have Data and MMS working.