If standard Android Factory Reset Protection halts setup, you must sign in with the Google Account previously synced to the device. To prevent this during future maintenance, always remove the Google Account from the menu before initiating a reset. To help me tailor any troubleshooting steps, let me know:

It was a typical busy day for John, a sales representative at a popular retail store. He was in a rush to set up his new Sunmi V2 Pro payment terminal, but as he was trying to configure it, he encountered an issue. The device was locked, and he couldn't access the settings menu. The screen displayed a message: "Device Locked. Please contact administrator."

If you forget your password on SUNMI V2 Pro what can you do to log back in? Sometimes we forget important things like card number, HardReset.info

A hard reset removes screen locks like PINs or patterns, but it may trigger Factory Reset Protection (FRP)

How to Unlock Sunmi V2 Pro: HardResetInfo Verified Method The Sunmi V2 Pro is a highly reliable Android-based handheld POS terminal used globally for mobile payment, ticketing, and queue management. However, forgotten lock screen passwords, system glitches, or secondhand ownership often require a complete system reset.