Mysterious setting reset and hotspot problem

"Good day. Hope this will help.

No damege to my phone. All I did was restart the phone and my Wifi hotspot stoped working.

With the restart is messed up some settings.

Made a backup to sd card and reset the phone back to factory settings.

Did the restore from backup and checed hotspot, reset my password and its working fine.

Huawei P9

Hope this helps"

is there any other fix than factory reset?