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Lenovo T400 - Start without power button

Posted: Mon May 04, 2015 7:11 am
by mihai.h
I have a Lenovo T400 and I am messing around with it. I have disassembled it and realized that there is no way I can start the laptop if the keyboard is not mounted.
Is there a way to start the laptop without using the power button located on the keyboard?

P.S: I am aware of LAN wake I am more interested in a hardware hack, like maybe playing with power pins.

Re: Lenovo T400 - Start without power button

Posted: Mon May 04, 2015 12:34 pm
by rkawakami
Welcome to thinkpads.com!

Three options, from my point of view, easiest to hardest:

1) Mount laptop to port replicator or docking station and use the power button on that piece of hardware
2) Hack the keyboard connector like this: http://forum.thinkpads.com/viewtopic.php?f=45&t=115525
3) Hack the docking port connector; you will need to find the correct pins to short together and/or ground

Re: Lenovo T400 - Start without power button

Posted: Tue May 05, 2015 3:14 am
by mihai.h
Thanks a lot!!!
I'll go with the hard option.