Getting stuck on a Google account verification screen after a factory reset is a common hurdle for Allwinner A133 tablet users. This security feature, known as , is designed to keep your data safe, but it can be a major headache if you’ve forgotten your credentials.
Hold the button (or sometimes Volume Up, depending on the specific tablet manufacturer).
While holding the button, connect the tablet to your PC via USB.
If you don't have access to a computer, you can attempt manual "loopholes" in the Android setup wizard: