1. AC Question's Avatar
    I was in china and I purchased a chinese sim card. Text and calling worked but data wouldnt work. I had the 3g sign and signals bars but no data transfer arrows were showing. Also at times the 3g would disappear and a G or H letter would show up instead. Not sure what the deal is. My friends iphone worked fine with his sim card.
    10-06-2015 02:18 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! You might have had to make sure your APN settings were correct, according to to the Chinese network you were using. Did you make sure you had the Roaming Data setting turned on?
    10-06-2015 03:21 PM
  3. evor1's Avatar
    I'm not sure what APN settings are. I had my network set to global and i tried changing it to GSM but that didn't work either. I did have roaming data off so i guess that may be the issue. I thought that setting only mattered when using a verizon SIM but since I was using a local china SIM i thought it wouldn't count as roaming.
    10-06-2015 08:48 PM
  4. B. Diddy's Avatar
    True--but maybe the SIM you had belonged to a carrier that didn't really cover your area very well, in which case it would go to roaming? Sorry, I have no idea what the China carriers are like in terms of coverage.
    10-06-2015 09:50 PM

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