From 8b2219bfa2da36e7809588ef723a10483a6e137f Mon Sep 17 00:00:00 2001 From: Francis Rowe Date: Wed, 05 Nov 2014 20:52:36 -0500 Subject: Documentation: *major* cleanup. Cleanup was long overdue. Old structure was messy and inefficient. --- (limited to 'docs/howtos/x60_unbrick.html') diff --git a/docs/howtos/x60_unbrick.html b/docs/howtos/x60_unbrick.html deleted file mode 100644 index 945712d..0000000 --- a/docs/howtos/x60_unbrick.html +++ /dev/null @@ -1,310 +0,0 @@ - - - - - - - - - Libreboot documentation: Unbricking the ThinkPad X60 - - - - -
-

Unbricking the ThinkPad X60

- -
- -

Or go back to main index

- -

Table of Contents

- - -

Hardware requirements

- - -

Software requirements

- - -

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's (the ROM's 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 machine that still has Lenovo BIOS running, - using those instructions: http://www.coreboot.org/Board:lenovo/x60/Installation. -

- -

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

-

- In this scenario, you compiled a ROM that had an incorrect configuration, or there is an actual bug preventing your machine 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 machine is bricked and will not boot at all. -

-

- "Unbricking" means flashing a known-good (working) ROM. The problem: you can't boot the machine, 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:
- -

-

- Push the keyboard forward (carefully):
- -

-

- Lift the keyboard up and disconnect it from the board:
- -

-

- Grab the right-hand side of the chassis and force it off (gently) and pry up the rest of the chassis:
- -

-

- You should now have this:
- -

-

- Disconnect the wifi antenna cables, the modem cable and the speaker:
- -

-

- Unroute the cables along their path, carefully lifting the tape that holds them in place. Then, disconnect the modem - cable (other end) and power connection and unroute all the cables so that they dangle by the monitor hinge on the right-hand - side:
- -

-

- Disconnect the monitor from the motherboard, and unroute the grey antenna cable, carefully lifting the tape - that holds it into place:
- -

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- Carefully lift the remaining tape and unroute the left antenna cable so that it is loose:
- -

-

- Remove the screw that is highlighted (do NOT remove the other one; it holds part of the heatsink (other side) into place):
- -

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- Remove those screws:
- -

-

- Carefully remove the plate, like so:
- -

-

- Remove the SATA connector:
- -

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- Now remove the motherboard (gently) and cast the lcd/chassis aside:
- -

-

- Lift back that tape and hold it with something. Highlighted is the SPI flash chip:
- -

-

- At this point, you should wire up your programmer according to it's documentation. For me, this was (see: "SparkFun cable pin reference"):
- http://dangerousprototypes.com/docs/Common_Bus_Pirate_cable_pinouts.
- Correlating with the following information, I was able to wire up my pirate correctly:
- http://flashrom.org/Bus_Pirate#Connections
- And by following that advice:
- http://www.coreboot.org/Board:lenovo/x60/Installation#Howto.
- Note: that last page says to wire up only those 5 pins (see below) like that: 1, 2, 4, 5, 6.
- Note: and then, for power it says (on that coreboot.org page) to connect the power jack to the board and connect the - AC adapter (without powering on the board).
- Note: I ignored that advice, and wired up all 8 pins. And it worked.
- - Here is the pinout (correlate it with your programmer's documentation):
- -

- -

- My programmer, usb cable and clip:
-
- My programmer (bus pirate):
-
- My clip (pomona 5250):
-
- My USB mini a to b cable:
-
- Connecting the pomona:
-
- Connecting the USB cable from programmer to 2nd(working/non-bricked) computer, my T60:
-
- Programmer is now active:
-
- Now I install flashrom on the T60 (running Trisquel GNU/Linux) and do this:
- flashrom -p buspirate_spi:dev=/dev/ttyUSB0 -w bin/x60/libreboot_usqwerty.rom
- Note: there are also other ROM images for X60
- Note: this is using buspirate as the programmer, so it is flashing the X60, not the T60!
- Here's my terminal window on the T60:
-
- So, you should see the following:
- -- - 

-			flashrom v0.9.5.2-r1517 on Linux 3.2.0-61-generic (i686), built with libpci 3.1.8, GCC 4.6.3, little endian
-			flashrom is free software, get the source code at http://www.flashrom.org
-
-			Calibrating delay loop... delay loop is unreliable, trying to continue OK.
-			Found Macronix flash chip "MX25L1605" (2048 kB, SPI) on buspirate_spi.
-			Reading old flash chip contents... done.
-			Erasing and writing flash chip... Erase/write done.
-			Verifying flash... VERIFIED. 
-
- --
- At the end it says "VERIFIED", which means that the procedure worked. If you see this, it means - that you can put your X60 back together. So let's do that now. -

-

- Remove the programmer and put it away somewhere. Put back the tape and press firmly over it:
- -

-

- Your empty chassis:
- -

-

- Put the motherboard back in:
- -

-

- Reconnect SATA:
- -

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- Put the plate back and re-insert those screws:
- -

-

- Re-route that antenna cable around the fan and apply the tape:
- -

-

- Route the cable here and then (not shown, due to error on my part) reconnect the monitor cable to the motherboard - and re-insert the screws:
- -

-

- Re-insert that screw:
- -

-

- Route the black antenna cable like so:
- -

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- Tuck it in neatly like so:
- -

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- Route the modem cable like so:
- -

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- Connect modem cable to board and tuck it in neatly like so:
- -

-

- Route the power connection and connect it to the board like so:
- -

-

- Route the antenna and modem cables neatly like so:
- -

-

- Connect the wifi antenna cables. At the start of the tutorial, this machine had an Intel wifi chip. Here you see I've replaced it with an - Atheros AR5B95 (supports 802.11n and can be used without blobs):
- -

-

- Connect the modem cable:
- -

-

- Connect the speaker:
- -

-

- You should now have this:
- -

-

- Re-connect the upper chassis:
- -

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- Re-connect the keyboard:
- -

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- Re-insert the screws that you removed earlier:
- -

-

- Power on!
- -

-

- Trisquel live USB menu (using GRUB's ISOLINUX parser):
- -

-

- Trisquel live desktop:
- -

- -
- -

- Copyright © 2014 Francis Rowe <info@gluglug.org.uk>
- This document is released under the Creative Commons Attribution-ShareAlike 4.0 International Public License and all future versions. - A copy of the license can be found at ../license.txt. -

- -

- This document is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See ../license.txt for more information. -

- - - -- cgit v0.9.1