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InvisibleNinja
Paper Tape
Posts: 8
Registered: ‎03-11-2012
Location: Georgia
Views: 730
Message 1 of 17

T400s won't start after keyboard cleaning

Hello. I cleaned by T400s keyboard today after some juice reached the keys and the laptop doesn't seem to start anymore. I removed the battery and the power cord, tried the 10 times power button press trick, still no result.

 

Does resetting the CMOS resolve the problem?

 

At the first glance, it seems the laptop receives power because the fingerprint reader LED is turned on, but it turns off as soon as I disconnect the charger.

 

Any suggestions? Thanks in advance.

Community SeniorMod
Community SeniorMod
Posts: 8,625
Registered: ‎01-01-2010
Location: US
Views: 713
Message 2 of 17

Re: T400s won't start after keyboard cleaning

It sounds like the juice got down beyond the keyboard and shorted something out


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
TheDude
802.11n
Posts: 541
Registered: ‎09-10-2009
Location: USA
Views: 705
Message 3 of 17

Re: T400s won't start after keyboard cleaning

unplug and pull battery.  Clear CMOS.  Let sit 30 min.  Put it battery back, plug it in, and see what happens.  If that doesn't work, then I think there is a real problem.


T61p, T400
formerly x23, x40
InvisibleNinja
Paper Tape
Posts: 8
Registered: ‎03-11-2012
Location: Georgia
Views: 697
Message 4 of 17

Re: T400s won't start after keyboard cleaning

Unfortunately, I can't pull out the keyboard to clear the CMOS. It seems to be stuck although I removed the screw on the back.
lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 696
Message 5 of 17

Re: T400s won't start after keyboard cleaning

remove the cmos and plug in the ac adapter and see whether it starts. If it was a keyboard issue, it is relatively easy to solve, but if something got onto the motherboard, then you are looking at a large repair bill.
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
InvisibleNinja
Paper Tape
Posts: 8
Registered: ‎03-11-2012
Location: Georgia
Views: 675
Message 6 of 17

Re: T400s won't start after keyboard cleaning

OK guys, I cleared the CMOS, the laptop booted up fine, it loaded Windows, everything went very smooth. But after shutdown, the laptop doesn't seem to start anymore, I guess a CMOS clear would do the job. What do you recommend?
lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 658
Message 7 of 17

Re: T400s won't start after keyboard cleaning

Did you see anything spilled on the laptop motherboard? when you say doesn't work, do you mean the power button on the keyboard still refuse to respond, or the remove cmos trick doesn't work?
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
InvisibleNinja
Paper Tape
Posts: 8
Registered: ‎03-11-2012
Location: Georgia
Views: 651
Message 8 of 17

Re: T400s won't start after keyboard cleaning

I can't see anything spilled on the motherboard. The power button refuses to work, but on the other hand, every CMOS reset turns on the laptop just fine.

lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 647
Message 9 of 17

Re: T400s won't start after keyboard cleaning

that means most likely your keyboard died and needs a replacement, which is pretty cheap from ebay.
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
InvisibleNinja
Paper Tape
Posts: 8
Registered: ‎03-11-2012
Location: Georgia
Views: 643
Message 10 of 17

Re: T400s won't start after keyboard cleaning

Even if it works okay in Windows?

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