Open Android Settings and find On-screen keyboard. Google documents the path System → Keyboard → On-screen keyboard. Turn on Gboard, then tap a text field. If another keyboard appears, open the keyboard picker and select Gboard.
01Test in a second app
Section linkTry typing in a different app, such as a new note or a message draft. If Gboard opens there, return to the original app and tap an editable field. If another keyboard opens and has a globe key, press and hold it to look for Gboard. On phones with different settings menus, search Settings for Gboard or keyboard.
02If Gboard is missing from the list
Section linkFind Gboard in Google Play and check whether it offers Install or Update. After installing or updating, check the On-screen keyboard list again and make sure Gboard is enabled. If it is enabled and still will not open in any app, restart the phone and test again.
03Try cache before resetting the keyboard
Section linkOpen Settings → Apps → Gboard → Storage and cache and clear the cache. Test in an app again. Clearing storage or data resets Gboard to its defaults, so save that step for a problem that persists. If you choose to uninstall Gboard and it is your only keyboard, set up another keyboard first.