[For Android User]Android phone cannot connect to P31S? Please install the latest APP version and use the BLE connection.

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1.Driver is not installing correctly.
2.Change the USB port after installation.
3.USB cord broken.
1.Uninstalling the driver and reinstall again.Power on the printer and connect to computer or laptop first.
2.Change back the USB port or reinstall again.
3.Change another USB cord.

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