Last week i bought a Xiaomi MiPad 2 (it’s a great tablet for 200€ !), it came without official keyboard so i’ve installed the google keyboard from the playstore
When i’ve installed Meraki System Manager i was forced to encrypt my data partition but after a reboot a pin for unencryption was prompted but without a keyboard ! Indeed, the google keyboard is installed but in the encrypted partition …. (/data/app) so after some search i found a solution but YOU NEED ADB ACTIVE on your tablet !
In the first time you need to boot your phone/tablet.
Connect your phone/tablet to your computer, and check if it recognized by adb
If your phone/tablet is recognized your good !
So now you need to enter your pin through adb with ‘input keyevent’