Android no on screen keybord ( only voice )

I have a Huawei P9.

• I unlocked the bootloader :

  fastboot oem unlock CODE

• and I installed custom recovery :

  fastboot flash recovery twrp-3.1.0-0-frd.img

• I restored the phone to factory settings from phone settings and , from TWRP , wiped the cache and maybe something else( not sure what check boxes were selected ).

I am stuck at initial screens where I need to enter Wifi password and Google email with no keyboard. I only have the voice option when I click on an input box :

I can't get pass it and install the keyboard with :

adb install keybord.apk

I also reinstated Android 7 ( the same problem persists )

UPDATE.APP in dload folder in SD card 

I tried reinstalling stock ROM but can't because bootloader is locked at the moment. ( locked it back at one of the intermediate restarts )

What happened ?

Would an external keyboard work ? What other solutions are there ?

Boot into recovery then mount system and open file manager (in the recovery).

Then search for keyboard files in /system/app or /system/priv-app. If they are not there then download the APK and put in the /system/app/<keyboard package name>/apk directory.