OLPC Firmware q3a15

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OLPC Firmware Release q3a15 -

It works on XO-1.5 A1, A2, B1, and B2 systems, but does not work on any XO-1 machines.

Download: Unreleased


Changes since q3a12

OpenFirmware is svn

EC code is version 1.9.14

Changes since 1.9.9 (in q3a10)

  • Large amount of rework in the 1-wire routines to make the states easier to debug and less if() else() nested
  • Increase the max current allowed for charging NiMH batteries
  • Decrease the voltage that trickle charge is enabled to
  • Fix Artec mode that broke when we reverted the button mapping changes
  • Tweak the pll value to try and keep the baud rates on the EC in range when it uses RC
  • EC detects ALPS vs EnE kbmc (keyboard maxtrix controller) and changes keyset mode.
  • Add high-speed cmd66 0xd4 that will put the PlatformID in port 0x62
  • Increase the onewire loop period to 150ms so that the "sleep timer" works again. Fixes EC not sleeping while on battery
  • Fix incorrect red LED behavior when battery error occurs.
  • Add magic 0x07 reboot mode for EC resets without host power loss.
  • Clear RAM on reset except for deep sleep and magic 0x07
  • Add EC cmd 0x3a for controlling power to SD slot 2

WLAN firmware is 9.70.7.p0

Which Firmware Do You Have?

If your machine is not in secure mode, the firmware version is displayed in the startup banner, as in: 

 OLPC XO 1.5, 1 GiB memory installed, S/N SHF7250024D
 OpenFirmware  CL1   Q3A04 Q3A
                     ^^^^^

If your machine is in secure mode, you can go to the Terminal activity and type 

 cat /ofw/openprom/model

If your machine is in secure mode but the OS will not start, just go ahead and try to upgrade the firmware anyway. The procedure is safe and will not do anything if you already have up-to-date firmware.

You can see the firmware version in secure mode by powering up with the "check" game button held down.

You can also go to the main Sugar screen, click on the little man and select "about this XO"


Installation

When installing new firmware, you must have a well-charged battery and the AC adapter plugged in. The firmware update code will not proceed otherwise. Possible error messages are:

error message how to fix
AC not present plug in the power cord, check the battery LED is on, then try again.
No external power plug in the power cord, check the battery LED is on, then try again,
No battery plug in the battery, check the latches, then try again, or try another battery,
Battery low allow more time for the battery to charge, then try again, or try another battery.

Unsecured Laptop

This section is for unsecured laptops. Most XO-1.5 and XO-1.75 laptops are unsecured. Most developer XO laptops are unsecured. To unsecure your laptop, follow the instructions at Activation and Developer Keys.

You may install using either:

  • a USB drive or SD card,
  • the laptop's internal drive,
  • a network.

Choose one.

Using a USB drive or SD card

  • check the battery is inserted and locked,
  • check that the power cord is in place and the battery indicator is green,
  • insert the USB drive or SD card,
  • turn on the laptop, and get to the 'ok' prompt. See Ok for more detail. You should see:
ok
  • if the downloaded file is on a USB drive, type:
 flash u:\q3a14.rom
  • if the downloaded file is on an external SD card:
 flash sd:\boot\q3a14.rom
  • wait for the laptop to reboot itself,
  • remove the USB drive or SD card.

(Expert users may remove the USB drive after the message "Got firmware" ... at this stage the file has been read and closed.)

Using the laptop internal drive

An alternate method is to download the firmware file to the laptop internal drive and then install from the internal drive.

  • start the laptop,
  • connect to a wireless or wired network,
su
cd /versions/boot/current/boot/
wget http://dev.laptop.org/pub/firmware/q3a14/q3a14.rom
  • check the battery is inserted and locked,
  • check that the power cord is in place and the battery indicator is green,
  • turn on the laptop, and get to the 'ok' prompt. See Ok for more detail. You should see:
ok
  • if the downloaded file is on an XO-1, type:
flash n:\boot\q3a14.rom
  • if the file is on the internal SD card of an XO-1.5 or XO-1.75:
flash int:\boot\q3a14.rom

Using a network

You will need a compatible USB to ethernet adapter, or an open or WEP wireless access point, connected to the internet.

  • check the battery is inserted and locked,
  • check that the power cord is in place and the battery indicator is green,
  • turn on the laptop, and get to the 'ok' prompt. See Ok for more detail. You should see:
ok
  • if using wireless, type the essid of the wireless network:
essid mynetwork
  • if using a WPA wireless access point, type the WPA key for the network:
wpa passphrase
  • type the flash command using the download link above, but change all slash characters so they are backwards, for example:
flash http:\\dev.laptop.org\pub\firmware\q3a14\q3a14.rom

Secured Laptop

Secured laptops can only use flash firmware that has been signed. All mass-production machines had the latest firmware at the time of manufacture.

Upgrading firmware describes how to upgrade to a newer signed firmware release.

See also

  • Cheat codes for information about how game buttons control startup options.
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