OLPC Firmware q3a36

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OLPC Firmware Release q3a36

Works on XO-1.5 A1, A2, B1, B2, B3, and C1 systems, but does not work on any XO-1 machines.

Download: q3a36.rom

The preceding release had some internal inconsistencies due to incomplete checkin of some experimental source changes, possibly leading to fs-update problems. This release stabilizes the source base with corrections for those inconsistencies, and adds some support that will eventually be useful for NANDblaster.

Changes since q3a35

• OLPC trac 10056 - OFW test-all and laptop self test no longer tests WLAN or internal S

D. test-all wasn't testing *anything* after doing the suspend/resume test.

• Add DS2756 EEPROM recall all banks command to batman
• Sync OFW batttery error info with EC
• enable serial port when reflashing
• Improved charge watch and MPPT status words
• Enhance watch-battey so that it knows that MPPT is active.
• Patch from Cortland Setlow to allow the uses of -O3 for compiling the inflater, thus making it run 2.5x faster.
• OLPC trac 10078 - second fs-update fails after mistyping file name on first try.

EC code is version 1.9.26

• Fix AP and CP flag behavior
• Add new boardID for C3
• Add 0xff checking to all the startup bank reads
• Loads of changes for for battery opperation and MPPT. MPPT still disabled by default
• The LiFe subsystem now syncs with the MPPT system so that MPPT can watch the voltage drop when charging is enabled.
• Lots of new EC commands that let you examine whats going on and turn MPPT on or off.
• Add a method of checking if the 1-wire machine has operations pending.

WLAN firmware is 9.70.7.p0

<same as in q3a14>

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

• download the firmware from http://dev.laptop.org/pub/firmware/q3a36/q3a36.rom and save it to a USB drive or SD card,

• shutdown the laptop,

• 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:\q3a36.rom

• if the downloaded file is on an external SD card:

 flash sd:\boot\q3a36.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,

• start the Terminal Activity and type:

su
cd /versions/boot/current/boot/
wget http://dev.laptop.org/pub/firmware/q3a36/q3a36.rom

• shutdown the laptop,

• 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\q3a36.rom

• if the file is on the internal SD card of an XO-1.5 or XO-1.75:

flash int:\boot\q3a36.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.

• shutdown the laptop,

• 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\q3a36\q3a36.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.