8 PRECAUTIONS
The precautions listed in this section should not be overlooked. They have been included
as reminders to prevent damage to your motherboard.
1. Never work on the motherboard with power applied.
2. Always double check all jumpers and wiring before applying power. Improper
jumpers or wiring can cause damage to the motherboard and possibly even
peripherals that it interfaces with.
3. The motherboard can power heated beds up to 300W. If you are using a bed that
operates at a higher power then you will need to use an external MOSFET. Do not
connect a voltage source greater than 28V to this input.
4. Never short circuit the 3.3V, 5V, 12V or 24V supplies to each other. Doing so will let
out some smoke and BTT will not be able to put it back for you.
5. You cannot power external devices using the USB-C interface. It is designed for data
only.
6. Always consult the PIN.pdf diagram when making jumper connections or wiring
changes. Assuming a connection order may result in damage to the motherboard.
7. It is recommended to update the firmware using SD card. Using DFU (direct
programming via the USB port) will overwrite the bootloader meaning that you will no
longer have the option to update via SD card unless you reflash the bootloader.
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