I am following the howto: https://developer.nvidia.com/embedded/learn/tutorials/vnc-setup

Flashing new firmware according to https://wiki.seeedstudio.com/ReSpeaker-USB-Mic-Array/

sudo apt-get update
sudo pip install pyusb click
 
git clone https://github.com/respeaker/usb_4_mic_array.git
cd usb_4_mic_array
 
# sudo python dfu.py --download 6_channels_firmware.bin  # The 6 channels version 
 
# if you want to use 1 channel,then the command should be like:
sudo python dfu.py --download 1_channel_firmware.bin

• https://wiki.seeedstudio.com/ReSpeaker_Product_Guide/

• https://wiki.seeedstudio.com/ReSpeaker_Mic_Array_v2.0/