Strange situation. For a second time this morning, when i woke up my device showed the passcode lockscreen stating "Pascode required after iphone restarts"? Thats really strange. Either there is some bug in 11.3 on my X or someone is touching my phone? But, i my sim card is locked with PIN, everytime the phone restarts the PIN is required again. But in those cases the phone states it was restarted but my sim cards is still active (does not request PIN code), which means the phone was not restarted? Is it a bug or something is going on here?