Troubleshooting - EFeru/hoverboard-firmware-hack-FOC GitHub Wiki
The board is not turning ON, you can't hear the power stage buzz noise, there is no melody, the led on the mainboard is OFF
the top TIP127 mosfet might be defective (Q2 in schematics)
The board is not turning ON, you hear the power stage buzz noise, there is no melody, the led on the mainboard is OFF
Can happen if you haven't flashed the chip properly, make sure you hold the button while flashing so the chip is always powered
The chip might be defective, can you connect to it with st-link utility while keeping the button pressed? Even if you feed the board with 3.3v from the st-link ?
The 5v or 3.3v dc-dc converters could be defective, you can usually find the same dc-dc converters on the sideboards
If the board draws more than 100mA in idle, it's probably broken
The board is not turning ON, you hear the power stage buzz noise, there is no melody, the led on the mainboard is ON
If the led on the mainboard is ON when you press the button, but the board doesn't stay ON when you release the button, you might want to check if you have another variant of the board
The board is turning ON as soon as the battery or charger is connected, and there is a continuous beep after the melody when you try to turn it OFF
The top TIP127 mosfet is probably shorted (Q2 in schematics). Use a multi-meter to check the continuity between drain and source. If your multi-meter beeps, the mosfet is shorted so you need to replace it
The board is not turning OFF when pressing the ON/OFF button
When plugging in the battery, the XT60 connector burns
It could be at least 2 mosfets of the same half-bridge/phase are shorted. Use a multi-meter to check the continuity between drain and source. If your multi-meter beeps, the mosfet is shorted so you need to replace it
You are unable to unlock the chip or flash the firmware