Unable to Find Serial Port on Lenovo Tab3 7 (Android v5.0.1)

[rayshi67]

Hi there,

Thanks for your great effort.

I managed to get the app running on the Lenovo Tab3 7 tablet with Android version 5.0.1.

I could see the following device list in the dropdown box the first time the app was running, /dev/ttyGS7 ... /dev/ttyGS0 /dev/ttyMT3 ... /dev/ttyMT0

However it always gave me the error "Failed to open serial port", regardless of which device was selected.

After I restarted the tablet, it always displayed the error message "Unable to find serial port" in the dropdown box.

Attach please find the screen shot for error details.

Would it be possible to use the serial port on Lenovo Tab3 7 at all?

Thanks in advance Ray