You'll need to plug in external power to power on for the first time. When the laptop is charging, the LED on the side of the laptop between the two Expansion Cards should be illuminated either orange (when charging) or white (when fully charged).
Check the specifications of the power adapter you're using, and check if it works with other USB-C devices. You can see the required power adapter specifications here.
If you are using 3.06 BIOS (the default BIOS Batch 5 and 6 ships with), we're investigating an issue where the system sometimes won't charge after it drains to 0% while sleeping. If you see this occur, the current workaround until we have an updated BIOS is:
If the side LED doesn't turn on on the first time power is plugged into the system on unboxing or if the above steps didn't resolve the issue, try doing a full reset of the state of the Mainboard by following this guide.
Double check the Touchpad Cable that goes between the Touchpad and the Mainboard. Sometimes this can get pulled out slightly when disassembling and assembling the laptop or setting up the DIY Edition, causing no connection. You should check that both sides of this cable are properly inserted. You can follow the step by step instructions on the Input Cover Replacement Guide to do that. Make sure the cable is fully inserted before powering on.
Double check that the Battery connector is plugged into the Mainboard. If not, follow the step here to plug it in, being careful to avoid bending the pins.
If the Battery connector is plugged in, double check that it is straight and fully inserted. If it looks like it is not fully inserted, first pull the connector out, avoiding twisting or bending it, and then look into the connector to make sure none of the pins are bent.
On the first boot after installing new memory, the side LEDs will stay green for a period of time (up to a couple of minutes) to do memory training. If the LEDs remain a solid color for more than five minutes, try powering off and reseating the memory modules or trying them out one at a time in each memory socket.
If the laptop does not successfully exit the BIOS after 20 seconds, the side LEDs next to the Expansion Cards will blink out a code with the status of various subsystems/boot initialization steps.
Note: If you enter the BIOS menu, pause the boot process, or have no OS installed, you may see this diagnostic blink sequence triggered even when there are no hardware issues preventing the system from booting.
The code will blink white, then 12 blinks that are red or green, then orange, then 8 blinks that are blue or green. If the flash is green, then the check for that specific item passed.
If the side LEDs blink out a code with the 11th blink red, that indicates a potential error with memory. Please try the following:
In the event you're seeing the side LEDs blink out a code where other blinks are red or the side LEDs don't come on at all, you can follow this guide to fully reset the state of the mainboard