26 lines
833 B
Markdown
26 lines
833 B
Markdown
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# Lenovo T420
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## Flashing instructions
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The flash IC is located at the bottom center of the mainboard. Sadly,
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access to the IC is blocked by the magnesum frame, so you need to disassemble
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the entire laptop and remove the mainboard.
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Below is a picture of IC on the mainboard, with the pinouts labeled.
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The chip will either be a Macronix MX25L6404E (shown above) or a Winbond
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W25Q64CVSIG. Do not rely on dots painted in the corner of the chip (such as
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the blue dot pictured) to orient the pins!
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For more details have a look at [T420 / T520 / X220 / T420s / W520 common] and
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```eval_rst
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:doc:`../../flash_tutorial/ext_power`
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```
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Steps to access the flash IC are described here [T4xx series].
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[T4xx series]: t4xx_series.md
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[T420 / T520 / X220 / T420s / W520 common]: xx20_series.md
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