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coreboot-kgpe-d16/Documentation/mainboard/lenovo/t4xx_series.md

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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