Unlocking a Sunmi V1 typically refers to one of three things: bypassing a screen lock, removing "locked" kiosk software from a specific vendor (like Grab or UberEats), or gaining root access to the Android system. Because the Sunmi V1
is a specialized POS (Point of Sale) device running Sunmi OS (a fork of Android), standard Android unlock methods often require specific hardware keys or "Test Point" methods. 1. Hard Reset (Bypass Screen Lock)
If you are locked out of the device via a PIN or Pattern, a factory reset is the most direct solution.
Power Off: Hold the power button until the device shuts down.
Recovery Mode: Press and hold the Power Button and the Volume Up button simultaneously.
Wipe Data: Use the volume buttons to navigate to "Wipe data/factory reset" and select it with the Power button. Reboot: Select "Reboot system now." Note: This will erase all local data and apps. 2. Unlocking from Merchant/Vendor Software Many sunmi v1 unlock
units are sold pre-configured for platforms like GrabFood or UberEats and are "locked" into those apps.
The "Exit" Password: Many vendor apps have a hidden exit menu. Common default passwords for Sunmi developer settings or app exits include sunmi1234, 000000, or 112233.
Developer Options: Go to Settings > About Device and tap "Build Number" 7 times. If successful, you can enable USB Debugging in the Developer Options menu, which allows you to push new apps via a PC. 3. Deep Unlocking & Firmware Flashing
If the device is restricted at the system level (MDM locked), you may need to flash the Global Firmware.
Tools Needed: You will generally need the SP Flash Tool (since Unlocking a Sunmi V1 typically refers to one
uses a MediaTek processor) and the official Sunmi V1 global ROM.
Test Point: In some extreme cases, you must open the back cover and short two specific pins (the "Test Point") on the motherboard while connecting it to a PC to force the device into "Preloader" mode for flashing.
Driver Installation: Ensure you have MTK (MediaTek) VCOM drivers installed on your Windows PC so the computer recognizes the device while it is powered off. 4. ADB Commands for App Installation If you have access to the settings but cannot install apps: Enable USB Debugging. Connect to a PC and open a Command Prompt. Use the command: adb install your_app_name.apk.
If the device blocks the install, try: adb shell settings put global install_non_market_apps 1.
Important Safety Warning:Unlocking or flashing firmware on POS devices can permanently disable the magnetic stripe reader or thermal printer if the drivers in the new ROM are incompatible. Always back up your current firmware version if possible. Pros : Full Android freedom, install any APK,
Successfully unlocking a Sunmi V1 yields mixed results:
In practice, an unlocked V1 is a powerful but orphaned device.
On older Sunmi V1 firmware, opening the hidden calculator app could bypass the lock.
Success Rate: Low (20%). Most new units patch these exploits.
If the ADB method fails because ADB is disabled or the system is write-protected, you need a full Sunmi V1 unlock via bootloader.
Before proceeding with any Sunmi V1 unlock procedure, note the following:
Proceed at your own risk.