User's Manual

17
To insert Micro-SD card, Remove battery cover on the rear of the device and pull out the battery.
 Android
TM
8.1 Oreo
TM
, the OS used in M3 SM15, can support up to 128 GB for
external memory.
1.4.2 Checking Data
Information stored in the Micro-SD card can be checked by swiping bottom  Click File
Manager
 Storage