@Sunshine 

Thanks for getting back to me.

You mean "Connecting" disaplays on the screen, but the M7350 doesn't broadcast any WiFi signal, thus you are unable to see its WiFi on any client device, right?

 

This is correct.

Is there a WiFi icon on the screen? If not, please press the power button to see if WiFi icon will appear on the screen.

I have done this. Pressing the power button just toggles the screen on and off. I dont know if there is something I am missing here? Regardless there is no WiFi icon or signal.

In addition, when you reset the M7350 to factory defaults, did you press and hold the reset hole? normally if the reset works, you will see "Restoring" and then "Succeed" on the screen, please try the factory reset again and confirm if you see them.

I have reset the device again and seen the "Restoring" and "Succeed" messages, but there has been no change to my problem.

I suspect this is a hardware problem which I understand may be impossible to fix, however one thing I forgot to mention is that I did manage to receive an SMS which suggests to me that at least the M7350 is receiving some kind of signal. I will test this again when I can to see if I can replicate this.