Check if PCB is level when robot is standing on the wheels and on the slider. Correct angle rotating sliding support on the cell. When you are satisfied with result secure the sliding support position with M3x10 screw.

Connect the robot to the PC, white lights should come on and one should start blinking signalling that charging is working. A USB device should come on:

$ lsusb
...

303a:1001 Espressif USB JTAG/serial debug unit

...

 If it does not, hold the "STRAP0" button and press "RESET". Further software instructions available on github.