KOCASO M6200 - Manual (Page 20)

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Picture 4.11
2. Check visibility timeout
Select visibility timeout setting in Picture 4.11, choose the time you want to set, as
Picture 4.12(Note: check overtime setting is the time setting when Bluetooth is
checked)
Picture 4.12
3. Display the file you received
Choose display the file you received in Picture 4.11, you can view download and
upload files.
4.4 Data Usage
Check SIM card data usage, as Picture 4.13