If you are locked out of the device due to a forgotten PIN or pattern, a Hard Reset is the standard solution. : Turn off the device completely.

: Some payment-specific "P" series and restricted "V" series models require a unique Auth Code from Sunmi to enable debug mode. To trigger this hidden prompt, tap TUSN in the "About Device" menu eight times continuously.

Use volume keys to navigate to and select it with the Power button.

| Unlock Type | Difficulty | Risk Level | Use Case | |--------------------|------------|------------|-----------------------------------| | Screen (PIN/swipe) | Trivial | None | Daily operation | | ADB/Dev options | Easy | Low | App debugging, log collection | | Bootloader | Hard | High | Custom ROM, full control | | Hidden features | Medium | Medium | Enhanced kiosk, custom peripheral |

If your device is not MDM-locked and you simply want to escape Kiosk Mode, this is the safest method.