diff options
| author | Patrick Rudolph <siro@das-labor.org> | 2018-08-04 10:04:45 +0200 |
|---|---|---|
| committer | Philipp Deppenwiese <zaolin.daisuki@gmail.com> | 2018-09-30 03:20:36 +0000 |
| commit | 15d840558480536ddaca71bc1876254d59fca7fe (patch) | |
| tree | ecbb8b330e53b9413eaf17a72e0fb79a9ed2523f /Documentation/mainboard/lenovo/t4xx_series.md | |
| parent | 3d1d966dd8866e8fd399f988b38b7ceba9f4cfee (diff) | |
Documentation: Add basic flashing tutorial for Lenovo
* Add basic flashing tutorial
** Describe internal and external flashing
** Describe flash supply diode protection
** Gives general advices on flashing
** Describe how to use flashrom --ifd
* Describe basic flashing on Lenovo T4xx devices
** Describe how to disassemble and access the flash IC on T4xx
** Describe flash layout on Sandy Bridge and Ivy Bridge series.
Change-Id: Ia833e27f4e7d89ee32be9bed21a0c021839facec
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/27852
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Diffstat (limited to 'Documentation/mainboard/lenovo/t4xx_series.md')
| -rw-r--r-- | Documentation/mainboard/lenovo/t4xx_series.md | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/mainboard/lenovo/t4xx_series.md b/Documentation/mainboard/lenovo/t4xx_series.md new file mode 100644 index 0000000000..23fe0fbe53 --- /dev/null +++ b/Documentation/mainboard/lenovo/t4xx_series.md @@ -0,0 +1,20 @@ +# Lenovo T4xx series disassembly instructions + +A skilled engineer takes around 40 minutes to disassemble, flash and reassemble +the whole device. + +# Steps to access the flash IC: + +* Unplug the main battery +* Remove the harddisk, CDROM, ExpressCard, SIM-card, SDcard, SmartCard, ... +* Open the bottom flap and remove the keyboard screw +* Remove the keyboard +* Remove the screen +* Remove the top enclosure +* Remove the CMOS battery +* Remove the speakers +* Remove WWAN and WIFI card +* Remove the CPU fan +* Unplug the power cable +* Remove the bottom enclosure +* Flip the mainboard and remove the main frame |