just bought a s3 last sunday..found out that the mobile network sometimes working sometimes now working..when i turn the mobile network on, nothing happens..after i restarted the phone, then works..anyone encounter this before ?

one of my friend which is also s3 user say this is normal if u use digi and sometimes the line suck badly, cant detect..and if you cant detect, u off your power saving mode..i tried that..it works...cos i normally on power saving mode 24 hours..