If you want to reset the SF-TESTER-ARM-5N1-4K because the unlocking pattern is not available, here are the steps to follow:
- Scroll down from the top of the screen until you see the Settings icon:
- Acceder al apartado Factory Default y seleccionar Factory default
- Accept the computer reset
Finally the computer will be restarted and, on startup it will be back to factory settings without the active unlock pattern.
In case, once accepted the factory return, the charging bar reaches 100% and starts again continuously, you will only have to turn off the computer with the ON/OFF button and turn it back on for it to start properly