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{{OLPC}}{{Users}}{{Translations}}
{{OLPC}}{{Users}}{{Translations}}
[[Image:Power-button.jpg|thumb|right|Power & Game buttons for XO-1 B2 and older XOs. XO-1 B3 and newer have "O" at the top and "✓" (check) at the right.]]
[[Image:Power-button.jpg|thumb|right|Power & Game buttons for XO-1 B2 and older XOs. XO-1 B3 and newer have "O" at the top and "✓" (check) at the right.]]
[[Link title]]
⚫
A number of special actions are available by holding down game key combinations at the same time as powering on the [[Hardware_specification#Laptop_Hardware|XO laptop]]. Other [[keyboard shortcuts]] are available after boot.


⚫
A number of special actions are available by holding down game key combinations at the same time as powering on the [[Hardware_specification#Laptop_Hardware|XO laptop]].
⚫
== XO-1.75 and XO-4 ==


While the keys are held down, the laptop waits for you to release them, during which you can press other keys.
In addition to the other keys, the rotate key prevents normal boot. It is used for repair and servicing with a [[Serial_adapter]].
[[Image:Ok-xo-1-q2f19-release-check-key.png|thumb|holding down a key]]


The table below lists each key, what it does, and what models of XO laptop respond to it.
== XO-1.5 Firmware (q3a59 or later) ==

In addition to the other keys (see next section):


{| border="1" cellspacing="0" cellpadding="2" width="100%" class="wikitable"
{| border="1" cellspacing="0" cellpadding="2" width="100%" class="wikitable"
! key
! key
! what it does
! what it does
! models
|-
|-
⚫
| ❌ (cross mark) game pad
⚫
| rocker down
⚫
| on dual boot laptops, provides operating system choice menu.
⚫
|}

== XO-1 and XO-1.5 Firmware (q2d04 and later) ==

{| border="1" cellspacing="0" cellpadding="2" width="100%" class="wikitable"
! key
! what it does
⚫
|-
⚫
| '×' game pad
| force secure boot when in non-secure mode.
| force secure boot when in non-secure mode.
| all
|-
|-
| '✓' (check) game pad
| ✓ (check mark) game pad
| force a more detailed display while booting; see [[Startup Diagnosis]].
| force detailed display while booting; see [[Startup Diagnosis]].
| all
|-
|-
| 'O' game pad
| ◯ (circle) game pad
| alternate boot on dual boot configurations.
| alternate between boot images. Laptops are shipped without an alternate image; they won't have an alternate image until after first [[olpc-update]] is done. The alternate image will then be the previous image that you were running.
| all, but on XO-4 with Android dual boot, forces boot into [[Android]]. On XO-1, XO-1.5 and XO-1.75, no action if laptop is locked, or displays the [[Ok]] prompt on unlocked laptops, or whatever has been configured in /boot-alt/olpc.fth
|-
|-
| '◻' (square) game pad
| □ (square) game pad
| no action, reserved for use by customer.
| not used directly by the firmware, but is remembered and may be handled by an external autoupdater script to wipe out user directory and do a factory-fresh install. (appropriate for upgrading machines straight from the factory). On [[OLPC_Firmware_q2e37|q2e37]] & later: pressing '◻' skips booting from Windows on SD and boots Sugar from the NAND.
| all
|-
|-
| ''all four game keys at once''
| ''all four game keys at once''
| destroy all data and install to the internal storage from either USB, SD, or network. Requires a signed fs.zip file and an image file; see [[Secure Upgrade]].
| destroy all data and install to the internal storage from either USB, SD, or network. Requires a signed fs.zip file and an image file; see [[Secure Upgrade]]. Data is not destroyed unless these files are available. Laptop will stay powered on if files are not available.
| all
|-
|-
| rocker left
| rocker left
| hardware diagnostics. You can pause between individual tests by holding down the "rotate" button - the one below the rocker pad.
| hardware diagnostics, see [[XO_Self_Test]]. You can pause between individual tests by holding down the "rotate" key - the one below the rocker pad.
| all
|-
|-
| rocker right
| rocker right
| try it and see! (hint: it is harmless and pretty).
| try it and see! (hint: it is harmless and pretty).
| XO-1 and XO-1.5 only (immediate power off on XO-1.75 and XO-4)
|-
|-
| rocker up
| rocker up
| XO-1 only, shows a graphical table of full, free, and defective blocks in internal flash. See [[Scan NAND]].
| shows a graphical table of full, free, and defective blocks in internal flash. See [[Scan NAND]].
| XO-1 only (no action on XO-1.5, XO-1.75, and XO-4)
⚫
|-
⚫
| rocker down
⚫
| on dual boot laptops, provides operating system choice menu.
| XO-4 Q7C05 or later with Android dual boot build, or XO-1.5 Q3A59 or later with Windows dual boot build (never entered production)
|-
|-
| ''all four rocker keys at once''
| ''all four rocker keys at once''
| starts a [http://en.wikipedia.org/wiki/Pong Pong] game!
| starts a [http://en.wikipedia.org/wiki/Pong Pong] game!
| XO-1 and XO-1.5 only (immediate power off on XO-1.75 and XO-4)
⚫
|-
| rotate key
| does not boot, enters firmware prompt for repair and servicing with a [[Serial_adapter]] after partial [[Disassembly]].
⚫
| XO-1.75 and XO-4
|}
|}


The "[[Rocker]]" is the large round button to the left of the screen, which can be rocked or tilted in any of four directions (up, down, left, or right).
The "[[Rocker]]" is the large round button to the left of the screen, which can be rocked or tilted in any of four directions (up, down, left, or right). Sometimes pressing in one direction with too much force can cause another direction to be detected as well; if this happens, try again with less force, or move your finger away from the direction that was incorrectly detected.


If your laptop has a [[Activation_and_developer_keys|Developer Key]] or has security disabled, the [[Open Firmware]] [[Ok|'ok' prompt]] will be available as your laptop powers on. See [[Ok]] for how to get this to work.
If your laptop has a [[Activation_and_developer_keys|Developer Key]] or has security disabled, the [[Open Firmware]] [[Ok|'ok' prompt]] will be available as your laptop powers on. See [[Ok]] for how to get this to work.


After boot, other [[keyboard shortcuts]] are available.
You may also [[Startup_sound|disable the startup sound]].

⚫
== The rest of this page applies only to prototype laptops that were used by software developers before December, 2007. ==
=== After firmware q2c28 and before q2d04 ===
:The 'X' game pad key is no longer used during upgrading.
:The Open Firmware ok prompt is available by default in non-secure boot. You will have to press the Esc key '''''during the countdown'''''. It is easy to miss the countdown, but pressing Esc too early can disable the keyboard.
* ''' 'X' game pad key:''' toggles secure and non-secure boot
* ''' '✓' (check) game pad key:''' forces a more detailed display while booting; see [[Startup Diagnosis]]
* ''' 'O' game pad key:''' boot from alternate image. At first, laptops have no alternate image.
* '''Rotate button:''' display Underwriters Labs safety message
* ''''◻' (square) game pad key:''' wipe out user directory and do a factory-fresh install. (appropriate for upgrading machines straight from the factory)

=== Before firmware q2c28 ===
* '''Rotate button:''' play "startup sound" at boot (after q2c27, this key will turn off sound and graphic boot up screen)
* ''' 'X' game pad key:''' interrupt boot, provide [[Forth Lesson 0|Open Firmware ok prompt]]. You may have to press the [[Esc key]] '''''during the countdown''''' ([[OLPC_Firmware_q2c25#How_to_get_the_ok_prompt|q2c25]]). It is easy to miss the countdown, but pressing Esc too early can disable the keyboard.
* ''' 'O' game pad key:''' boot from backup OS image, for system recovery. (not yet in a stable build)
* '''Left directional pad:''' try out "pretty boot" (be patient, early versions show a static boot screen for a long time) (after q2c27, this key will turn off the "pretty boot")
* '''Right directional pad:''' try it and see! (tests hardware)


⚫
For prototype laptops used by software developers before December 2007, see [[/Obsolete]].
Further, the [[Autoreinstallation image]] uses a couple more special game key combinations:
* ''' 'X' and '✓' (check) game pad keys:''' skip upgrade, just write activation lease to USB key and boot. (if your XO doesn't have a check key, use the 'O' key)
* ''' 'X' and '◻' (square) game pad keys:''' wipe out user directory and do a factory-fresh install. (appropriate for upgrading machines straight from the factory)


[[Category:Developers]]
[[Category:Developers]]

Latest revision as of 07:41, 27 August 2019

  This page is monitored by the OLPC team.
  For the general public
  english | español HowTo [ID# 301971]  +/-  
Power & Game buttons for XO-1 B2 and older XOs. XO-1 B3 and newer have "O" at the top and "✓" (check) at the right.

A number of special actions are available by holding down game key combinations at the same time as powering on the XO laptop.

While the keys are held down, the laptop waits for you to release them, during which you can press other keys.

holding down a key

The table below lists each key, what it does, and what models of XO laptop respond to it.

key what it does models
❌ (cross mark) game pad force secure boot when in non-secure mode. all
✓ (check mark) game pad force detailed display while booting; see Startup Diagnosis. all
◯ (circle) game pad alternate boot on dual boot configurations. all, but on XO-4 with Android dual boot, forces boot into Android. On XO-1, XO-1.5 and XO-1.75, no action if laptop is locked, or displays the Ok prompt on unlocked laptops, or whatever has been configured in /boot-alt/olpc.fth
□ (square) game pad no action, reserved for use by customer. all
all four game keys at once destroy all data and install to the internal storage from either USB, SD, or network. Requires a signed fs.zip file and an image file; see Secure Upgrade. Data is not destroyed unless these files are available. Laptop will stay powered on if files are not available. all
rocker left hardware diagnostics, see XO_Self_Test. You can pause between individual tests by holding down the "rotate" key - the one below the rocker pad. all
rocker right try it and see! (hint: it is harmless and pretty). XO-1 and XO-1.5 only (immediate power off on XO-1.75 and XO-4)
rocker up shows a graphical table of full, free, and defective blocks in internal flash. See Scan NAND. XO-1 only (no action on XO-1.5, XO-1.75, and XO-4)
rocker down on dual boot laptops, provides operating system choice menu. XO-4 Q7C05 or later with Android dual boot build, or XO-1.5 Q3A59 or later with Windows dual boot build (never entered production)
all four rocker keys at once starts a Pong game! XO-1 and XO-1.5 only (immediate power off on XO-1.75 and XO-4)
rotate key does not boot, enters firmware prompt for repair and servicing with a Serial_adapter after partial Disassembly. XO-1.75 and XO-4

The "Rocker" is the large round button to the left of the screen, which can be rocked or tilted in any of four directions (up, down, left, or right). Sometimes pressing in one direction with too much force can cause another direction to be detected as well; if this happens, try again with less force, or move your finger away from the direction that was incorrectly detected.

If your laptop has a Developer Key or has security disabled, the Open Firmware 'ok' prompt will be available as your laptop powers on. See Ok for how to get this to work.

After boot, other keyboard shortcuts are available.

For prototype laptops used by software developers before December 2007, see /Obsolete.

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