After a reboot, a lot of phones can only use the device’s default keyboard app for entering the unlock pin/password.
If you’ve removed or disabled it, you can get into a situation where you have no keyboard at all, and a delightful chicken-and-egg situation of needing a keyboard you don’t have until after unlocking the device to enter the code to unlock the device.
(A USB keyboard will let you escape this, for what that’s worth)
Yes, but you shouldn’t.
After a reboot, a lot of phones can only use the device’s default keyboard app for entering the unlock pin/password.
If you’ve removed or disabled it, you can get into a situation where you have no keyboard at all, and a delightful chicken-and-egg situation of needing a keyboard you don’t have until after unlocking the device to enter the code to unlock the device.
(A USB keyboard will let you escape this, for what that’s worth)