[anonsec123]

I actually have the perfect(?) solution to this ridiculous problem after it happened to me a couple of months ago.

Hit the Google Assistant button, ask it to turn on "TalkBack". Now you can browse the interface the same way someone blind would browse the interface. Plug in a USB keyboard.

From here you go to the Settings page and enable Developer Tools.

[maven29]

If you have assistant disabled, holding down volume-up and volume-down buttons together on the lockscreen should have the same effect