iPad Auto-Lock time can't be changed
Does anyone know how to change the waiting time for Auto-Lock when it's grayed-out? My 6th-gen iPad has been stuck on 2 minutes for several weeks and won't let me change it. It's stayed like this despite updating iOS to latest version (15.2) and resetting everything today.
I've read elsewhere that it might be linked to Battery LowPower mode, but that's turned off, and nothing seems to let me change it.
Any suggestions would be appreciated.
-V.M.
iPad Pro 9.7-inch WiFi