Linkit One board not responding

The Link It one board that I purchased from seeedstudio is not responding.
When board is not in Mass storage mode, the COM ports don’t show up on Device manager.
When it’s in Mass storage mode, one COM port shows up.
Thinking that it’s a firmware issue, I tried updating the firmware through Linkit firmware updater. But it goes upto 50% and stops.
Please help.
Is there any other way to update firmware ?

Hi, please try the code attached. :smiley: (8.04 MB)
flash_tool.pdf (622 KB)