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Thread: Volte not working after one Ui 4 update for unlocked S21 ultra

  1. #1
    Junior Member
    Join Date
    Nov 2020
    Posts
    9

    Unhappy Volte not working after one Ui 4 update for unlocked S21 ultra

    Hi
    Ive just updated my unlocked SM- G998U1 (S21 ultra) to android 12 one UI 4 and the VOLTE service have stopped working plus iam also unable to make calls.
    Steps i have performed
    tried changing network modes from Global to 3G Lte but no use
    tried restarting the phone, rebooted in safe mode.
    tried disabling sim card manager.

    Any help would be appreciated, Thank you.

    Please help, also will it work if i download a firmware and flash using odin?
    Last edited by ghost648; 27-11-2021 at 11:41.

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