Xperia 10 III Mobile data stops working

Bug Reports
9

Thanks to @savaju I got it working!
steps:

  1. toggle OFF System Settings/Security/Require PIN Code for your SIM card
    RequirePIN
  2. shut down the phone
  3. with the phone turned OFF, long press volume up + power keys; phone vibrates once; keep buttons pressed until three short vibrations. without this step, the procedure didn’t work for me
  4. turn on the phone.
    In my case, 4G data came back to life.

Additional remarks:

  • Toggling “Require PIN code” ON with mobile data in status OK will break it upon reboot
  • Toggling “Require PIN code” to OFF with mobile data in status BROKEN will make it work after reboot. So far that worked without the reset procedure described at step 3 above.
  • the procedure “fixed” as well the connectivity on another SIM (Auchan Telecom) which previously remained stuck in 3G. Now it goes 4G with mobile data.

Awkward.

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