1. The CyberPi does not light up screen or show flashing screen when power is on.

Either using USB power supply or handheld expansion board power supply, the CyberPi still show abnormal, you can try to update the firmware with mBlock software (Refer to Update the Firmware of mBot Neo/mBot2.)

2. How to deal with the problem of insufficient power supply to CyberPi?

The normal state of the blue light after power on is: after turning on the switch, the blue light will only blink 2~3 times, and then it will be in a constant light state (please refer to the motion picture below).

when the power supply is abnormal, the blue light will keep blinking.

In this situation, please follow steps below for trouble shooting:

Step1: Connect CyberPi & expension Board, turn on the mBot Neo ;

Step2: Connect CyberPi with mBlcok 5, refer to Connect mBot Neo with mBlock 5 ;

Step3: Click ‘Setting’, and then click 'Firmware Update'

Step4: Wait for the firmware update to complete(it takes about 3~5mins), restart the mBot Neo, and check if the blue light status return to normal.

3. What can I do if firmware update stuck at 20% and failed?

Here follows some suggestions for you to troubleshoot the problem:

    1. Check if the cable is original, since there's similar cable but without data transfer function, try using the original USB cable;

    2. Check if the CH340 driver is successfully installed in your "Device Manager" on PC, sample as below screenshot, make sure the driver exist and without any warning symbols(Small yellow triangle); If there's any abnormity, try re-install the software and please let us know;

    3. Try using mBlock5 web version for firmware updating;

    4. Select the correct USB port that connect with mBot2, DO NOT select "Show all connectable devices"