From 95259e28ef047923258434898113d70c8e544eab Mon Sep 17 00:00:00 2001 From: Francis Rowe Date: Fri, 06 Nov 2015 17:43:29 -0500 Subject: convert documentation to texinfo --- (limited to 'docs/install/x60tablet_unbrick.html') diff --git a/docs/install/x60tablet_unbrick.html b/docs/install/x60tablet_unbrick.html deleted file mode 100644 index 23a770b..0000000 --- a/docs/install/x60tablet_unbrick.html +++ /dev/null @@ -1,215 +0,0 @@ - - - - - - - - - ThinkPad X60 Tablet: Recovery guide - - - - -
-

ThinkPad X60 Tablet: Recovery guide

-

This section documents how to recover from a bad flash that prevents your ThinkPad X60 Tablet from booting.

-

Back to previous index

-
- -
-

Table of Contents

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- -
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Brick type 1: bucts not reset.

-

- You still have Lenovo BIOS, or you had libreboot running and you flashed another ROM; and you had bucts 1 set and - the ROM wasn't dd'd.* or if Lenovo BIOS was present and libreboot wasn't flashed.

- - In this case, unbricking is easy: reset BUC.TS to 0 by removing that yellow cmos coin (it's a battery) and putting it back after a minute or two:
-

- - *Those dd commands should be applied to all newly compiled X60 ROM images (the ROM images in libreboot binary archives already have this applied!):
- dd if=coreboot.rom of=top64k.bin bs=1 skip=$[$(stat -c %s coreboot.rom) - 0x10000] count=64k
- dd if=coreboot.rom bs=1 skip=$[$(stat -c %s coreboot.rom) - 0x20000] count=64k | hexdump
- dd if=top64k.bin of=coreboot.rom bs=1 seek=$[$(stat -c %s coreboot.rom) - 0x20000] count=64k conv=notrunc
- (doing this makes the ROM suitable for use when flashing a system that still has Lenovo BIOS running, - using those instructions: http://www.coreboot.org/Board:lenovo/x60/Installation. -

-
- -
- -

bad rom (or user error), system won't boot

-

- In this scenario, you compiled a ROM that had an incorrect configuration, or there is an actual bug preventing your system from - booting. Or, maybe, you set BUC.TS to 0 and shut down after first flash while Lenovo BIOS was running. In any case, your system is bricked and will not boot at all. -

-

- "Unbricking" means flashing a known-good (working) ROM. The problem: you can't boot the system, making this difficult. In this situation, external hardware (see hardware requirements above) is needed which can flash the SPI chip (where libreboot resides). -

- -

- -

- -

- Remove those screws:
- -

- -

- Remove the HDD:
- -

- -

- Push keyboard forward to loosen it:
- -

- -

- Lift:
- -

- -

- Remove those:
- -

- -

- - -

- -

- Also remove that (marked) and unroute the antenna cables:
- -

- -

- For some X60T laptops, you have to unroute those too:
- -

- -

- Remove the LCD extend board screws. Also remove those screws (see blue marks) and remove/unroute the cables and remove the metal plate:
- -

- -

- Remove that screw and then remove the board:
- -

- -

- Now wire up the BBB and the Pomona with your PSU.
- Refer to bbb_setup.html for how to setup - the BBB for flashing.
- Note, the guide mentions a 3.3v DC PSU but you don't need this on the X60 Tablet: - if you don't have or don't want to use an external PSU, then make - sure not to connect the 3.3v leads mentioned in the guide; - instead, connect the AC adapter (the one that normally charges your - battery) so that the board has power (but don't boot it up) -
- Correlate the following with the BBB guide linked above: -

-
-POMONA 5250:
-===  golden finger and wifi switch ====
- 18              -       - 1
- 22              -       - NC                    ---------- audio jacks are on this end
- NC              -       - 21
- 3.3V (PSU)      -       - 17 - this is pin 1 on the flash chip
-===  CPU fan ===
-This is how you will connect. Numbers refer to pin numbers on the BBB, on the plugs near the DC jack.
-
- -

- Connecting the BBB and pomona (in this image, an external 3.3v DC PSU was used):
- -

- -

- Flashrom binaries for ARM (tested on a BBB) are distributed in libreboot_util. Alternatively, - libreboot also distributes flashrom source code which can be built. -

- -

- SSH'd into the BBB:
- # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -w yourrom.rom -

-

- It should be Verifying flash... VERIFIED at the end. If flashrom complains about multiple flash chip - definitions detected, then choose one of them following the instructions in the output. -

- -

- Reverse the steps to re-assemble your system. -

- -
- -
- -

- Copyright © 2014, 2015 Francis Rowe <info@gluglug.org.uk>
- Permission is granted to copy, distribute and/or modify this document - under the terms of the GNU Free Documentation License, Version 1.3 - or any later version published by the Free Software Foundation; - with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. - A copy of the license can be found at ../gfdl-1.3.txt -

- -

- Updated versions of the license (when available) can be found at - https://www.gnu.org/licenses/licenses.html -

- -

- UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE - EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS - AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF - ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS, - IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION, - WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR - PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS, - ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT - KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT - ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU. -

-

- TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE - TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION, - NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT, - INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES, - COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR - USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN - ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR - DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR - IN PART, THIS LIMITATION MAY NOT APPLY TO YOU. -

-

- The disclaimer of warranties and limitation of liability provided - above shall be interpreted in a manner that, to the extent - possible, most closely approximates an absolute disclaimer and - waiver of all liability. -

- -
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