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Diffstat (limited to 'Documentation/mainboard')
| -rw-r--r-- | Documentation/mainboard/lenovo/t420.md | 13 | ||||
| -rw-r--r-- | Documentation/mainboard/lenovo/t420_chip_location.jpg | bin | 0 -> 316180 bytes |
2 files changed, 11 insertions, 2 deletions
diff --git a/Documentation/mainboard/lenovo/t420.md b/Documentation/mainboard/lenovo/t420.md index ff7a0a9238..6ebff0ed3e 100644 --- a/Documentation/mainboard/lenovo/t420.md +++ b/Documentation/mainboard/lenovo/t420.md @@ -1,8 +1,17 @@ # Lenovo T420 ## Flashing instructions -You have to disassemble the whole device, as the flash IC is on the bottom -of the mainboard. +The flash IC is located at the bottom center of the mainboard. Sadly, +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 diff --git a/Documentation/mainboard/lenovo/t420_chip_location.jpg b/Documentation/mainboard/lenovo/t420_chip_location.jpg Binary files differnew file mode 100644 index 0000000000..e38516503c --- /dev/null +++ b/Documentation/mainboard/lenovo/t420_chip_location.jpg |
