I attempt to flash the device and uses putty to connect to the COM port but nothing is shown even tapping Enter for a couple of times. I thought it was my cable problem, I changed 5 different USB cable, none made it work. I then suspect the power wasn't enough, I used a 9V battery and putty still shows nothing. Then I flash again after installing all driver. Not working, changed from Windows to Mac, not working, flashing older version, not working. In the end, I found https://software.intel.com/en-us/forums/internet-of-things/topic/533839 https://software.intel.com/en-us/forums/internet-of-things/topic/533839 that made it works. I suspect that the problem is that the serial port is not working correctly. Did anyone have this issue?
Could you please take a screenshot of the Device Manager while the USB cable is connected to the microUSB port? I'd like to check the COM port status.
Additionally, I recommend you to power the board with a DC power supply instead of the 9V battery. The drivers for the serial port that you should install are the following: http://www.ftdichip.com/Drivers/D2XX.htm http://www.ftdichip.com/Drivers/D2XX.htm. Make sure you have installed them before taking the screenshot of the Device Manager.
Did you try to power the board with a DC power supply? The driver of the serial port seems to be correct, and the port is indeed recognized. I'd like to know if you were able to access the Edison's console through the serial port before, or if you haven't been able to access it since you got the module. You have flashed the Edison with different image versions and the issue is still happening, right?
Additionally, are you using the Arduino Expansion Board or the Mini-Breakout Board?
I tried powering with a DC power supply of 9V.
I could not access the Edison console with serial port since I got the module.
I flashed with different Edison image but the issue still happening.
I am using Arduino Expansion Board and that is the only board I have.
I recommend you to submit a warranty ticket. Everything seems to be installed properly, and considering the fact that you have flashed the Edison with different image versions, this doesn't seem to be a software issue. Submit the warranty ticket using the following form so the Warranty Team can help you with this: https://customercare.intel.com/?lang=en-US https://customercare.intel.com/?lang=en-US
Try first to connect the FTDI of the Arduino board to your computer,
than open a terminal like realterm and connect to the COM Port
now you plug in the power for the Arduino board
Do you see anything (You should see the boot process)?