CHIP
Single board computer.
Flashing firmware/OS
Put your CHIP in FEL mode by putting a jumper wire between GND and FEL. Connect the CHIP to your computer with USB (using the microUSB port on the CHIP, not the fullsize USB port).
Download chip-tools ttps://github.com/Project-chip-crumbs/CHIP-tools
install deps: sudo apt install android-tools-fastboot sunxi-tools u-boot-tools
Downgrade sunxi https://github.com/Thore-Krug/Flash-CHIP/issues/21
Here is how you downgrade sunxi-tools on newer versions of Ubuntu based distros.
Append deb http://de.archive.ubuntu.com/ubuntu/ bionic main universe to /etc/apt/sources.list
Do sudo apt update
Install the package: sudo apt install sunxi-tools=1.4.1-1
Mark hold to prevent upgrade: apt-mark hold sunxi-tools
To prevent any other complications Remove deb http://de.archive.ubuntu.com/ubuntu/ bionic main universe from /etc/apt/sources.list
./chip-update-firmware.sh -s
Access CHIP from host machine: Plug into USB, then: screen /dev/ttyACM0 115200
user: chip
pass: chip
Set up wireless
sudo nmtui
https://yoursunny.com/t/2019/bye-CHIP/
https://yoursunny.com/t/2018/CHIP-flash-offline/