45 lines
1.8 KiB
Markdown
45 lines
1.8 KiB
Markdown
# Lenovo T410
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## Known issues
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* Dock has wrong ACPI ID (causes "AC adapter state cannot be read" in Linux)
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* TPM not working with VBOOT and C_ENV bootblock (works without C_ENV BB)
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## Flashing instructions
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```eval_rst
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+---------------------+--------------------------------+
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| Type | Value |
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+=====================+================================+
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| Socketed flash | no |
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+---------------------+--------------------------------+
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| Size | 8 MiB |
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+---------------------+--------------------------------+
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| In circuit flashing | Only in S3/WoL |
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+---------------------+--------------------------------+
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| Package | SOIC-8 |
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+---------------------+--------------------------------+
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| Write protection | No |
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+---------------------+--------------------------------+
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| Dual BIOS feature | No |
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+---------------------+--------------------------------+
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| Internal flashing | Yes |
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+---------------------+--------------------------------+
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```
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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 MX25L6405D or a Winbond W25Q64CVSIG.
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Do not rely on dots painted in the corner of the chip (such as the blue dot
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pictured) to orient the pins!
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[Flashing tutorial](../../tutorial/flashing_firmware/no_ext_power.md)
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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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