PM550 Android 7.1.2 User Manual
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OS Image update from OTG Port
PM550 support USB OTG feature. With USB type C
flash drive or OTG cable and USB flash drive
combination, you can update the OS
Please format your flash drive with FAT32 option
Please set a Volume label
After format, please copy OS image to the root folder
of the flash drive
Connect flash drive to the PM550
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