HT201270: Update your carrier settings on your iPhone or iPad
Learn about Update your carrier settings on your iPhone or iPad
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Helpful answers
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Nov 11, 2012 4:18 PM in response to Yuan1789by gdgmacguy,Do as the manual states and restore, first from backup then as a new device if the restore from backup was not successfu.
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Nov 13, 2012 3:05 AM in response to gdgmacguyby Yuan1789,I checked with my telcom in Singapore..
StarHub just came out with LTE so they prompt me to update then now my phone running on 3G or LTE..
Which mean I can't choose 2G or 3G, is neither 3G or LTE..