1. Android Central Question's Avatar
    Samsung s10e.
    My sim card works in other phones, but when I insert it in my S10e , immediately gives error message mm - phone not allowed for voice.
    I have even gone so far as to hard factory reset my phone, nothing has helped.
    10-09-2020 07:24 AM
  2. anon(10614692)'s Avatar
    It's probably tied to another carrier, this is generally what the mm error means. Or, it could be blacklisted. Talk to your carrier about this


    I'll leave a Link to register so you can communicate here as a guest account you can only post questions but can't reply.
    https://forums.androidcentral.com/sh...d.php?t=409154
    mustang7757 likes this.
    10-09-2020 10:56 AM
  3. mustang7757's Avatar
    You purchase the phone used ,or new ?
    10-09-2020 10:59 AM

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