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No Mobile Data on unlocked SM-G935W8 after latest update - Please Help!

Discussion in 'Android Devices' started by fun_e_mahn, Aug 31, 2017.

  1. fun_e_mahn

    fun_e_mahn Lurker
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    Hello,
    I have a Galaxy S7 Edge – Canadian Edition (SM-G935W8) that I successfully unlocked, and was successfully using it in Thailand with one of their largest providers (True-H) and getting great LTE data connection and speed. However, recently, for the life of me I can’t get any mobile data whatsoever. Please see the below relevant information & any help / input would be greatly appreciated.

    • The problem started when I accepted the latest Android System and Security Update over the air. Prior to that I was getting either a “4G” or “LTE” logo beside me signal strength bars. After the update, no more logo, no more mobile data.
    • I am able to receive SMS text messages.
    • I went through all permutations of Network Modes and Network Operators.
    • I created and tried all the published APNs.
    • I took it to the provider store and they tried the same without success.
    • I downgraded my ROM to the oldest version of Nougat available via Odin. I made sure to flash all components incl. modem and bootloader (clicking bootloader checkbox in Odin).
    • When I toggle between Network Modes and Operators, I receive “Registered Successfully” and Time/Date gets auto synchronized.
    • I cleared cache & factory reset.
    • The one difference that struck me was that I initially had my Canadian SIM (Rogers) in my phone before putting the Thai one in. Now, I lost my Rogers SIM and don’t have the option to experiment by putting it in then the Thai one in again.
    Do I need to root?
    Something to do with Regions and new Security?

    Any help on this would be super appreciated!!

    Thanks a ton in advance!!

    Cheers!! :)
     

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Samsung Galaxy S7 Edge

The Samsung Galaxy S7 Edge launched in 2016 and was one of two of Samsung's flagship devices. The S7 Edge features a 5.5-inch display with a resolution of 2560 x 1440, 4GB of RAM, 323GB of storage, and 12MP main camera sensor.

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