Why does my phone keep switching data off? Never had this problem before,On 3 network.

[Android Central Question]

Bought a new phone and used existing sim card on 3 network, Android system, Keeps switching off data on its own,And also losing internet connection, Never had this trouble before,New phone is made for Vodafone ,No name on it.

 

[belodion]

Do you mean that the phone is locked to the Vodafone network?