XO Troubleshooting Guide: Difference between revisions

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{{OLPC}}{{Translations}}__NOTOC__
This is a troubleshooting guide for the [[Hardware_specification#Laptop_Hardware|XO laptop]].
It is for troubleshooting production [[Hardware_specification#Laptop_Hardware|XO laptops]] running firmware version Q2D03 or greater.

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

==[[XO_Troubleshooting_PowerOn|Problems powering on]]==
If you are having problems getting the XO to power on, see [[XO_Troubleshooting_PowerOn|Troubleshooting Power On]].

==[[XO_Troubleshooting_Display|Display problems]]==
If you are having problems with the display on an XO laptop, see the [[XO_Troubleshooting_Display|Display diagnosis section]].

==[[XO_Troubleshooting_Battery|Power and Battery problems]]==
See the [[XO_Troubleshooting_Battery|Power and Battery diagnosis section]] if you are having problems such as:
* the battery is not charging
* the battery is suddenly loosing charge
* the laptop won't run from a power adapter

==[[XO_Troubleshooting_AV|Audio and Camera problems]]==
If you are having problems with the audio (microphone, speakers, headphones, or microphone input) or camera on an [[Hardware_specification#Laptop_Hardware|XO laptop]], see the [[XO_Troubleshooting_AV|AV diagnosis section]].

==[[XO_Troubleshooting_Keyboard|Keyboard and Touchpad problems]]==
If you are having problems with the keyboard or touchpad on an XO laptop, see the [[XO_Troubleshooting_Keyboard|Keyboard diagnosis section]].

==[[XO_Troubleshooting_USB|USB problems]]==
If you are having problems with the USB interfaces on an XO laptop, see the [[XO_Troubleshooting_USB|USB diagnosis section]].

==Debugging Procedures==
The following are common debugging and test procedures:

* [[XO Full Reset|'''Rebooting the Embedded Controller''']] - This completely resets a laptop
* [[XO_Self_Test|'''A Hardware Self-Test''']] is included in the [[Hardware|XO laptop]].
* [[Cheat codes|'''Boot options''']] - Different boot options are available through pressing buttons around the screen during the initial boot process (immediately after pressing the power button). A sampling (more at [[Cheat codes]]):
** '✓' '''(check) game pad key:''' forces a more detailed display while booting. See [[XO_Troubleshooting_PowerOn#The_display_is_showing_an_XO_icon|Troubleshooting Power-On]] 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 [[XO_Self_Test|hardware self-test]].

==Repair Procedures==
The following are common repair procedures:

* [[Disassembly|'''Disassembly Guide''']]
** [[Disassembly_top|Getting at the display and motherboard]]
** [[Disassembly_bottom|Replacing a keyboard/touchpad]]
* [[Activation_and_Developer_Keys|Getting a developer key for a laptop]]
* [[Fix_Clock|'''Fixing an RTC problem''']] - Fix laptops which can't boot due to reset RTC time.
* [[XO_Replacing_SPI_flash|'''Replacing the EC Flash''']] - Replacing the [[Embedded_controller|Embedded Controller]] Flash
* [[Fix_Clock#How_to_set_up_an_XO_as_a_serial_terminal|Turning an XO into a serial terminal]]
* [[XO_LiFePO4_Recovery_Procedure|Fixing LiFePO4 batteries that stop charging]]
* [[Hardware_Power_Domains|A detailed description of the laptop power circuitry]]


[[Category: Repair]]
[[Category: Hardware]]
[[Category: Developers]]

Revision as of 12:50, 9 July 2008