160 lines
6.1 KiB
Markdown
160 lines
6.1 KiB
Markdown
---
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title: ThinkPad T60 Recovery guide
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x-toc-enable: true
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...
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NOTE: Libreboot standardises on [flashprog](https://flashprog.org/wiki/Flashprog)
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now, as of 27 January 2024, which is a fork of flashrom.
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"Unbricking" means flashing a known-good (working) ROM. The problem:
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you can't boot the system, making this difficult. In this situation,
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external hardware is needed which can flash the SPI chip (where libreboot
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resides). First, disassemble the machine using the following steps, and refer
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to the external flashing guide linked later from *this* guide.
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Remove those screws and remove the HDD:\
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Lift off the palm rest:\
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Lift up the keyboard, pull it back a bit, flip it over like that and
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then disconnect it from the board:\
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Gently wedge both sides loose:\
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Remove that cable from the position:\
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Now remove that bezel. Remove wifi, nvram battery and speaker connector
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(also remove 56k modem, on the left of wifi):\
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Remove those screws:\
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Disconnect the power jack:\
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Remove nvram battery:\
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Disconnect cable (for 56k modem) and disconnect the other cable:\
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Disconnect speaker cable:\
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Disconnect the other end of the 56k modem cable:\
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Make sure you removed it:\
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Unscrew those:\
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Make sure you removed those:\
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Disconnect LCD cable from board:\
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Remove those screws then remove the LCD assembly:\
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Once again, make sure you removed those:\
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Remove the shielding containing the motherboard, then flip it over.
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Remove these screws, placing them on a steady surface in the same layout
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as they were in before you removed them. Also, you should mark each
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screw hole after removing the screw (a permanent marker pen will do),
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this is so that you have a point of reference when re-assembling the
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system:
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This photo shows the flash chip, near the RAM, with numbers of pins written:
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Refer to the external flashing guide:
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[Externally rewrite 25xx NOR flash via SPI protocol](spi.md)
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NOTE: Do not use the 3.3v rail from your SPI programmer. Leave that disconnected.
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For 3.3v, plug your charger into the mainboard (but do not power on the mainboard)
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when the clip is connected. Before removing the clip, disconnect the charger.
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This will provide adequate 3.3v DC at correct current levels. The SPI flash on an
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X60 shares a common 3.3V rail with many other components on the mainboard,
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which all draw a lot of current, more than your flasher can provide.
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Example command:
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sudo ./flashprog -p linux_spi:dev=/dev/spidev0.0,spispeed=4096 -w libreboot.rom -V
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If flashprog complains about multiple flash chips detected, just pass the `-c`
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option as it suggests, and pick any of the chips it lists. `spispeed=4096` or
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lower (e.g. `spispeed=512`) is recommended on this board. The flashing becomes
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unstable, on this machine, when you use higher speeds.
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Reverse the steps to re-assemble your system, after you've flashed the chip.
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It should be `Verifying flash... VERIFIED` at the end. If flashprog
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complains about multiple flash chip definitions detected, then choose
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one of them following the instructions in the output.
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Put those screws back:\
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Put it back into lower chassis:\
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Attach LCD and insert screws (also, attach the lcd cable to the board):\
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Insert those screws:\
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On the CPU (and there is another chip south-east to it, sorry forgot to
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take pic) clean off the old thermal paste (with the alcohol) and apply
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new (Artic Silver 5 is good, others are good too) you should also clean
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the heatsink the same way\
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Attach the heatsink and install the screws (also, make sure to install
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the AC jack as highlighted):\
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Reinstall that upper bezel:\
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Do that:\
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Re-attach modem, wifi, (wwan?), and all necessary cables. Sorry, forgot
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to take pics. Look at previous removal steps to see where they go back
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to.
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Attach keyboard and install nvram battery:\
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Place keyboard and (sorry, forgot to take pics) reinstall the palmrest
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and insert screws on the underside:\
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It lives!\
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Always stress test ('stress -c 2' and xsensors. below 90C is ok) when
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replacing cpu paste/heatsink:\
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