Can’t Call In or Out on Android

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Advanced Protection

There are cases where a working SIM card is inserted into an Android phone, but suddenly the device can no longer make or receive calls, although SMS still works. This may be caused by a feature called Advanced Protection in Android, which blocks 2G networks during calls.

To fix this:

  • Go to Settings → Security & Privacy →
    Advanced Protection
  • Turn Device Protection off
  • If the phone is set up as a child account under Google Family Link, make sure to enable the same adjustment there as well.
*Tested on Google Pixel Phone.

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