I've heard the H+ symbol should turn to 4G symbol when in a 4G area.
I've never seen the 4G symbol appear when I'm definitely in 4G areas (including Birmingham and central London).
Is the information I've received wrong, or is there a setting wrong on my phone?
The phone is set to "WCDMA/GSM (auto connect) and is running the latest Samsung ROM (Android 4.4).
My service provider is Three.