rusefi_documentation/Common-Issues.md

# Prototype board does not show the ON light

Isolate to only USB power by disconnecting from vehicle and plugging in to USB power. If that helps. There is probably a problem with the 12V power supply.
Check the 3.3V LED.

## ON light is bright, but can not communicate over USB

Check that the FTDI driver is installed and that you find your COM port.

## Can't open Java console

Make sure you have Java installed and are opening with Java.
fix typos and md syntax 2022-12-30 09:33:08 -08:00			`# Prototype board does not show the ON light`
Final wiki dump (#87) * a few more pages * a bunch more * rest of the pages * header swap 2020-08-27 14:32:54 -07:00
			`Isolate to only USB power by disconnecting from vehicle and plugging in to USB power. If that helps. There is probably a problem with the 12V power supply.`
fix typos and md syntax 2022-12-30 09:33:08 -08:00			`Check the 3.3V LED.`
Final wiki dump (#87) * a few more pages * a bunch more * rest of the pages * header swap 2020-08-27 14:32:54 -07:00
fix typos and md syntax 2022-12-30 09:33:08 -08:00			`## ON light is bright, but can not communicate over USB`
Final wiki dump (#87) * a few more pages * a bunch more * rest of the pages * header swap 2020-08-27 14:32:54 -07:00
fix typos and md syntax 2022-12-30 09:33:08 -08:00			`Check that the FTDI driver is installed and that you find your COM port.`
Final wiki dump (#87) * a few more pages * a bunch more * rest of the pages * header swap 2020-08-27 14:32:54 -07:00
			`## Can't open Java console`

			`Make sure you have Java installed and are opening with Java.`