XO Troubleshooting Guide

This is a troubleshooting guide for the XO laptop. It is geared toward troubleshooting production units running firmware version Q2D03 or greater.

Still very much a work in progress!! Feel free to add

Problems powering on

If you are having problems turning on your XO, see Troubleshooting Power On.

Display problems

If you are having problems with the display on an XO laptop, see the Display diagnosis section.

Audio and Camera problems

If you are having problems with the audio (microphone, speakers, headphones, or microphone input) on an XO laptop, see the AV diagnosis section.

Keyboard and Touchpad problems

If you are having problems with the keyboard or touchpad on an XO laptop, see the Keyboard diagnosis section.

USB problems

If you are having problems with the USB interfaces on an XO laptop, see the USB diagnosis section.

Power and Battery problems

The laptop can't charge the battery

1. Indication: The charging led is burning yellow and never goes green.
2. Debug:
   1. check if battery connector in the chassis has 7 volts.
   2. check if battery connector on the motherboard has 7 volts.

(Garbled text here!) < < < < < < < <

1. 1. If the has If This is due to a loose cable / connector. Check wiring and connectors st
2. fixes:
   1. bewing pins in the connectors
   2. resolder / replace wires

Common Procedures

Rebooting the Embedded Controller

See XO Full Reset.

Boot options

Different boot options are available through pressing buttons around the screen during the initial boot process (immediately after pressing the power button). These are included here for completeness. More information is available at Cheat codes.

• '✓' (check) game pad key: forces a more detailed display while booting. See Startup Diagnosis for more details. This is useful for debugging activation problems.
• 'O' game pad key: alternate between the current boot image and a previous one. In laptops which have never been upgraded, there is no previous boot image to use.
• Rocker left: invoke hardware self-test.

Hardware Self-Test

A Hardware Self-test is included in the XO laptop.