Can't have G,E,3G,H+ in the network bar (thus no internet connection unless on wifi) I have a new Samsung Galaxy Note 3 Neo, I have a question. Since I bought it 2 days ago, the internet connection is fine (with or without wifi) and it shows either G/E/3G/H+ symbol.

But, I once get into a basement (which I got no signal), and then, when I came out (this morning), the internet network coverage shows no symbol.

What I did wrong? I might accidentally pressed something unconsciously since I am new to this device (and android smartphone generally).

The signal bar (aside G,E,3G,H+ symbol) shows full bar, though.

Thanks. (I haven't call my service provider, since it might be device problem)

Additional notes :


On : Wifi, Vibrate, Screen Rotation, Mobile Data, Multi Window, Smart Stay, Sync
Off : GPS, BT, Blocking Mode, Power Saving, Screen Monitoring, Wifi Hotspot, S Beam, NFC, Air View, Hands-free mode, Smart pause, Smart scroll, Airplane mode
Android version : 4.3
There are many things that can go wrong when messing around with the network settings, but the main ones to check are: 


that you have enabled Packet Data and is not Roaming on
different network
and that you have not set and exceeded your data limit. This can be
    both from your provider and also as a user defined setting.