SIM card no service in China. How can I restore the signal?

[Winniewong]

SIM card no service in China. How can I restore the signal? I can't make calls and receive any text messages. And i even can not call 150. Who can help me to solve this problem?

[bristolian]

Has this SIM worked abroad previously?

If no - is it a PAYG or pay-monthly SIM? If yes - have you tried connecting to an alternative Chinese network?

[XRaySpeX]

Are you on contract or PAYG? Did you use that SIM for making calls or texts in UK before you left to go abroad?

If you are on contract, did you activate roaming on your EE a/c before you left UK by texting ROAMING to 150? Having a roaming billing add-on doesn't of itself activate roaming on your a/c. Having roaming activated on your EE a/c, not just on your device, is crucial to using your contract SIM abroad.

Often just rebooting the phone is the simple remedy. Also try selecting a network manually rather than auto. Otherwise you need to call CS to get your roaming activated. Try calling CS on the Freephone no. in my sig. on Skype over WiFi. It should be free.