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| author | Alyssa Rosenzweig <alyssa@rosenzweig.io> | 2017-03-17 23:15:09 -0700 |
|---|---|---|
| committer | Alyssa Rosenzweig <alyssa@rosenzweig.io> | 2017-03-17 23:15:09 -0700 |
| commit | 1eb5130a1c70a7238548d977e9c6f371c007eed7 (patch) | |
| tree | ee28aa07cbb52f25b5f468f59ec8d9587edff739 /docs/install/t500_external.md | |
| parent | b62dbec1e23f03ae944b51fc4b510dc56ed9b83e (diff) | |
| download | librebootfr-1eb5130a1c70a7238548d977e9c6f371c007eed7.tar.gz librebootfr-1eb5130a1c70a7238548d977e9c6f371c007eed7.zip | |
It wasn't me, I swear!
Diffstat (limited to 'docs/install/t500_external.md')
| -rw-r--r-- | docs/install/t500_external.md | 117 |
1 files changed, 78 insertions, 39 deletions
diff --git a/docs/install/t500_external.md b/docs/install/t500_external.md index 239b7d25..3b81c0be 100644 --- a/docs/install/t500_external.md +++ b/docs/install/t500_external.md @@ -67,7 +67,8 @@ See [#paste](#paste). Flash chip size {#flashchips} =============== -Use this to find out:\ +Use this to find out: + # **flashrom -p internal -V** [Back to top of page.](#pagetop) @@ -127,20 +128,26 @@ for SOIC-8 (clip: Pomona 5250): The procedure ------------- -Remove all screws:\ -\ +Remove all screws: + + + It is also advisable to, throughout the disassembly, place any screws and/or components that you removed in the same layout or arrangement. -The follow photos demonstrate this:\ +The follow photos demonstrate this: +   -Remove the HDD/SSD and optical drive:\ +Remove the HDD/SSD and optical drive: +   -Remove the palm rest:\ +Remove the palm rest: +   -Remove the keyboard and rear bezel:\ +Remove the keyboard and rear bezel: +       @@ -148,88 +155,109 @@ Remove the keyboard and rear bezel:\ If you have a WWAN/3G card and/or sim card reader, remove them permanently. The WWAN-3G card has proprietary firmware inside; the technology is identical to what is used in mobile phones, so it can also -track your movements:\ +track your movements: +    -Remove this frame, and then remove the wifi chip:\ +Remove this frame, and then remove the wifi chip: +    -Remove the speakers:\ +Remove the speakers: +        -Remove the NVRAM battery (already removed in this photo):\ +Remove the NVRAM battery (already removed in this photo): +  When you re-assemble, you will be replacing the wifi chip with another. These two screws don't hold anything together, but they are included in your system because the screw holes for half-height cards are a different size, so use these if you will be installing a half-height -card:\ +card: +  -Unroute the antenna wires:\ +Unroute the antenna wires: +     -Disconnect the LCD cable from the motherboard:\ +Disconnect the LCD cable from the motherboard: +   -Remove the LCD assembly hinge screws, and then remove the LCD assembly:\ +Remove the LCD assembly hinge screws, and then remove the LCD assembly: +    -Remove the fan and heatsink:\ +Remove the fan and heatsink: +    -Remove this screw:\ +Remove this screw: +  Remove these cables, keeping note of how and in what arrangement they -are connected:\ +are connected: +          -Disconnect the power jack:\ +Disconnect the power jack: +   Remove the motherboard and cage from the base (the marked hole is where -those cables were routed through):\ +those cables were routed through): +   Remove all screws, arranging them in the same layout when placing the screws on a surface and marking each screw hole (this is to reduce the -possibility of putting them back in the wrong holes):\ +possibility of putting them back in the wrong holes): +   -Also remove this:\ +Also remove this: +   -Separate the motherboard from the cage:\ +Separate the motherboard from the cage: +   The flash chip is next to the memory slots. On this system, it was a -SOIC-8 (4MiB or 32Mb) flash chip:\ +SOIC-8 (4MiB or 32Mb) flash chip: +  -Connect your programmer, then connect GND and 3.3V\ -\ +Connect your programmer, then connect GND and 3.3V + + +     A dedicated 3.3V PSU was used to create this guide, but at ATX PSU is -also fine:\ +also fine: +  -Of course, make sure to turn on your PSU:\ +Of course, make sure to turn on your PSU: +  Now, you should be ready to install libreboot. @@ -241,7 +269,8 @@ source code which can be built. Log in as root on your BBB, using the instructions in [bbb\_setup.html#bbb\_access](bbb_setup.html#bbb_access). -Test that flashrom works:\ +Test that flashrom works: + # ./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 In this case, the output was: @@ -255,17 +284,23 @@ In this case, the output was: Please specify which chip definition to use with the -c <chipname> option. How to backup factory.rom (change the -c option as neeed, for your flash -chip):\ +chip): + # **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r -factory.rom**\ +factory.rom** + # **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r -factory1.rom**\ +factory1.rom** + # **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r -factory2.rom**\ +factory2.rom** + Note: the **-c** option is not required in libreboot's patched flashrom, because the redundant flash chip definitions in *flashchips.c* -have been removed.\ -Now compare the 3 images:\ +have been removed. + +Now compare the 3 images: + # sha512sum factory*.rom If the hashes match, then just copy one of them (the factory.rom) to a safe place (on a drive connected to another system, not the BBB). This @@ -280,7 +315,8 @@ flashing it. Although there is a default MAC address inside the ROM image, this is not what you want. **Make sure to always change the MAC address to one that is correct for your system.** -Now flash it:\ +Now flash it: + # **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -w path/to/libreboot/rom/image.rom -V** @@ -345,7 +381,8 @@ whitelist of approved chips, and it will refuse to boot if you use an 'unauthorized' wifi card. The following photos show an Atheros AR5B95 being installed, to replace -the Intel chip that this T500 came with:\ +the Intel chip that this T500 came with: +   @@ -375,7 +412,8 @@ Make sure that the RAM you buy is the 2Rx8 density. be useful for RAM compatibility info (note: coreboot raminit is different, so this page might be BS) -The following photo shows 8GiB (2x4GiB) of RAM installed:\ +The following photo shows 8GiB (2x4GiB) of RAM installed: +  @@ -391,7 +429,8 @@ Now [install GNU+Linux](../gnulinux/). -Copyright © 2015 Leah Rowe <info@minifree.org>\ +Copyright © 2015 Leah Rowe <info@minifree.org> + Permission is granted to copy, distribute and/or modify this document under the terms of the Creative Commons Attribution-ShareAlike 4.0 International license or any later version published by Creative |