OLPC Firmware q2c21
OLPC Firmware Release q2c21 - 2007-08-02
This firmware is the second release candidate for the CTest build. It will also work on boards B1 or later. Do not use it on pre-B1 boards - it will brick them because of the EC microcode.
Support for ATest has been removed!.
BIG FAT WARNING!
The manufacturing data has moved locations. If you are upgrading from the B series of the firmware the manufacturing data will be moved to its new location. After that has happened you must not install anything from the B series of the firmware. If you do then you will erase your manufacturing data.
Download: q2c21
How to get the ok prompt
Press the "X" (down) game key after hitting the power button to enable the ok prompt. You still have to press the ESC key (upper left on the keyboard 
) during the countdown. If you don't press the "X" game key, the firmware goes into fastboot mode, in which:
- The keyboard is not probed, thus saving some time
- The boot order is USB, SD, NAND, wireless
- OFW does not put any text on the screen, just graphics
In some previous firmware versions, pressing any game key would get you to interactive mode; in this version, only the "X" game key, which is the one nearest to the power button, does so.
Changes since OLPC Firmware q2c20
OpenFirmware is r514
- Fixed the watch-battery command - it wasn't working correctly with LiFePO4 batteries.
- Made copy-nand abort if a NAND write error occurs
- Added a command "debug-ps2" to display the raw data transmitted to and from the keyboard and mouse, for the purpose of debugging an ESD-induced touchpad reset problem.
- Enhanced the "test /mouse" selftest to recover from ESD-induced touchpad resets and display a message when such a reset occurs.
- Fixed a bug in the FAT32 filesystem driver that caused filesystem corruption when writing a lease file. It was off-by-one error in the handling of the "next available cluster" hint.
EC code is PQ2C20
(Same as previous release)
Known EC issues:
- The EC doesn't detect the battery after several remove/insert cycles with the hardware 1-wire interface.
Installation Instructions
- If you have a B1-B4 system:
- Detailed upgrade instructions are located here.
- If your firmware version is earlier than the version in Auto Install Image then you can just use that procedure for the update.
Note: that this procedure will also upgrade the image in your nand flash -- which is the entire Linux operating system and all the files you may have edited or saved. This means it will ERASE what is in your nand and re-write it. So you will lose any data you have stored on the filesystem unless you back it up. If you do not want your files erased, then please use the first procedure above. - Do NOT use olpcflash to write new firmware images. Doing so will erase the manufacturing data that was added at the factory.
- After you reflash, you must power cycle by physically removing power from the system. A warm-start or button-induced restart is not sufficient. Please remove both the battery pack and wall adapter for 10 seconds.
- If you have an ATest system
- Don't use this firmware. ATest support has been removed.