The Apisolis beeps red upon use after the ignition sequence.
Check the height of the two pins and their spring effect.
Change the contactors card.
Straighten the resistor contractors to make contact.
Place a small piece of aluminum foil in the hollow of the resistor, making contact with the pin of the card that does not rise.
No LED light when charging.
Do you hear a slight beep ?
5. Still USB connected, connect the battery.
Change the controller card.
The LED flashes red or orange even after several hours of charging, possibly irregular flashing of the LED.
The LED does not light up and the Apisolis makes a slight beep during charging.
Change the battery.