GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Documentation/mainboard/lenovo/t420.md: add pic of chip 

Provide pic of the flash IC with pinouts labeled, as well
as additional text about the chip.

Signed-off-by: Michael Bacarella <michael.bacarella@gmail.com>
Change-Id: I9046fa63dcd4d192836417efac68ca7587ac1c91
Signed-off-by: Michael Bacarella <michael.bacarella@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30027
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
This commit is contained in:
Michael Bacarella 2018-12-03 13:31:35 -08:00 committed by Felix Held
parent 497becf1f1
commit 134c30761e
2 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Documentation/mainboard/lenovo/t420.md
View File

@ -1,8 +1,17 @@
# Lenovo T420 # Lenovo T420
## Flashing instructions ## Flashing instructions
You have to disassemble the whole device, as the flash IC is on the bottom The flash IC is located at the bottom center of the mainboard. Sadly,
of the mainboard. access to the IC is blocked by the magnesum frame, so you need to disassemble
the entire laptop and remove the mainboard.
Below is a picture of IC on the mainboard, with the pinouts labeled.
[t420_chip_location]: t420_chip_location.jpg
The chip will either be a Macronix MX25L6404E (shown above) or a Winbond
W25Q64CVSIG. Do not rely on dots painted in the corner of the chip (such as
the blue dot pictured) to orient the pins!
For more details have a look at [T420 / T520 / X220 / T420s / W520 common] and For more details have a look at [T420 / T520 / X220 / T420s / W520 common] and

BIN
Documentation/mainboard/lenovo/t420_chip_location.jpg Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 309 KiB