OLPC Firmware q2c16a: Difference between revisions
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(New page: {{OLPC}} == OLPC Firmware Release q2c16a - 2007-06-07 == This is post-production firmware for the '''BTest''' boards. It will also work on ATest. Do not use it on pre-B1 boards - it wil...) |
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== OLPC Firmware Release q2c16a - 2007-06-07 == |
== OLPC Firmware Release q2c16a - 2007-06-07 == |
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This is a small variation on [[OLPC_Firmware_q2c16]]. Please see that version for basic information. Please use c16, not this version, for production testing in preparation for B4. |
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This is post-production firmware for the '''BTest''' boards. It will also work on ATest. Do not use it on pre-B1 boards - it will brick them because of the EC microcode. |
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The change from c16 to c16a is the correction of a bug in the EC code in the area of wireless LAN reset. c16 includes a workaround for that bug, so the external behavior of c16 and c16a should be the same. c16 was built with officially released EC code from Quanta, whereas c16a was built with a test version of the EC code. |
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<big><font color="red">'''BIG FAT WARNING!'''</font></big> |
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'''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 <u>you will erase</u> your manufacturing data.''' |
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<br> |
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---- |
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Download: [http://dev.laptop.org/pub/firmware/q2c16a q2c16a] |
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---- |
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=== Changes since [[OLPC Firmware q2c13]] === |
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====<font color=red>How to get the ok prompt</font>==== |
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[[Image:Power-button.jpg|thumb|right|Power & Game buttons]] |
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Press a 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 [[Image:Key esc.jpg]]) during the countdown. If you don't press a game key, the firmware goes into fastboot mode, in which: |
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* The keyboard is not probed, thus saving some time |
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* The USB bus is not enumerated, thus saving even more time |
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* The boot order is SD, NAND, wireless |
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* OFW does not put any text on the screen, just graphics |
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* When transferring control to the kernel, OFW freezes the screen using the DCON, which hides the Linux console text until Linux unfreezes the DCON. The intention is to migrate to a "pretty boot" scheme where there is no scrolling text in the normal boot case. |
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====Change Log==== |
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* OFW r443+wlan reset workaround removal |
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* EC |
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** PQ2C16a |
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More change log notes pending.. |
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=== Installation Instructions === |
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* '''If you have a B1 or B2 system:''' |
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** Detailed upgrade instructions are located [[Upgrading_the_firmware|here]]. |
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** If your firmware version is earlier than the version in [http://wiki.laptop.org/go/Autoreinstallation_image Auto Install Image] then you can just use that procedure for the update.<br> ''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 [[Upgrading_the_firmware|first procedure above]]. |
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** Do '''NOT''' use olpcflash to write new firmware images. Doing so will erase the manufacturing data that was added at the factory. |
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** 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. |
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* '''If you have an ATest system''' |
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** If you use olpcflash to write this image, you must use the --brick option.<br> Example: <code>olpcflash --brick -w image.rom</code><br> The --brick option makes olpcflash update your EC code as well as the firmware. |
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[[Category:Firmware]] |
[[Category:Firmware]] |
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Latest revision as of 23:53, 7 June 2007
This page is monitored by the OLPC team.
OLPC Firmware Release q2c16a - 2007-06-07
This is a small variation on OLPC_Firmware_q2c16. Please see that version for basic information. Please use c16, not this version, for production testing in preparation for B4.
The change from c16 to c16a is the correction of a bug in the EC code in the area of wireless LAN reset. c16 includes a workaround for that bug, so the external behavior of c16 and c16a should be the same. c16 was built with officially released EC code from Quanta, whereas c16a was built with a test version of the EC code.