the unit and remove the outer casing with a screwdriver.

If the hard reset button didn't work and the serial code generator failed, the password is stored in a non-volatile chip. You have two nuclear options.

Open the app on your smartphone, navigate to the "Tools" or "Me" section, and select Reset Device Password .

Method 3 — Hardware reset (button or jumper)

Use a metal object (like a screwdriver or tweezers) to the two pins together.