1) My phone ‐ Samsung ‐ is making phone calls on its own.
2) Ot is also asking me to enter my number to verify that it is really me, yet as soon as I try to enter the number, the screen disappears.
@Sam77 - strange occurrences...
Umm, could your phone be hacked, I hope not. Hopefully, just a finicky thing going on.
Try one or more of the below:
*turn off your phone, leave off for a few minutes, then reboot
*removing your SIM, then reinserting it
*go into airplane mode, then going back to regular mode
*perform a reset network settings on your device
*if you try your SIM card it another compatible phone is the behaviour the same?