User's Manual

PM451 Android 9.0 User Manual

Getting Started

Turn off

1. Press and hold the

Power

button until the power menu is shown

2. Tap

Power off

among the menu

Battery Hot Swap

PM451 provides the Battery Hot swap mode which allows you to replace the battery without turning

off the device. When the battery is removed from the device, the display turns off and the device

enters Hot Swap mode. In Hot swap mode, data is retained for a while. Once you replace the battery

to a new one and lock the Battery lock firmly, the device comes back to normal operation mode

without the booting process.

Figure 11 Power menu