User's Manual

PM451 Android 9.0 User Manual

System Maintenance

OS Update

To improve the performance of your device, Point Mobile provides up-to-date OS(Operating System)

version. You can update your device via storage, OTG port, and FOTA server. Depending on your

workspace environment, choose one of the methods to update the OS.

OS Update via Storage

To update the OS using storage,

1. Download an OS image file into the root folder of microSD card or device internal storage

2. (In case of using SD card) Insert SD card to the device and then turn the device on

3. Go to

Settings

System

Advanced

System Update

4. Check if the OS image file shows up in

AVAILABLE VERSIONS

5. Tap

UPDATE

to start the update process

Note:

Please backup your data before starting the update process.

Note:

If the OS image file doesn't show up in

AVAILABLE VERSIONS

, check the file is

placed in the root folder of storage. System only can recognize the file in the root folder.

Figure 50 OS update via storage