1. AC Question's Avatar
    HELLO MY HTC D820 MU DOES NOT 3G Dual network manager does not let me choose 3G for any of my SIMS IT IS BLOCKED ON 2G SEE PHOTOS ATTACHEDHELP ME PLEASE
    07-12-2015 05:45 AM
  2. Thilina Gardiarachchi's Avatar
    I had same problem with same phone. I update my SIM card to 4G.ask your service provider and change the SIM card.or type in key pad *#*#4636#*#* and select gsm auto.

    Posted via the Android Central App
    08-19-2015 12:15 AM
  3. Woi Ngweta's Avatar
    i have the same problem can someone tell me the steps to use this *#*#4636#*#* thingy, am not clear .

    help please
    07-18-2016 10:37 PM

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