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6 Posts

06-12-2014

Florida

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Trackpad Not Working Even After Replacement

2014-06-12, 23:01 PM

About 3 months ago, I spilled water all over my T510.  Everything worked afterwards, except for the trackpad and fingerprint reader.  The trackpad was not even seen in BIOS.  The fingerprint reader lit up, and I could turn on the laptop by sliding my finger over it, but it would not log me in, and was not detected in the OS.  I removed the pamlrest, and the wires going to the motherboard had been corroded when I spilled the water.
Yesterday, I got my replacement palmrest, with trackpad and FPR included.  I replaced the old one with the new one, and I checked in the bios.  The trackpad was shown, along with the TrackPoint.  Both were set to "Automatic".  When I booted into Debian, neither the trackpad nor the trackpoint worked.  I tried Windows, and it was the same. Here is what I've tried:

 

Palmrest Disconnected:

Trackpoint: works

Trackpad: does not work (duh)

 

Palmrest Connected, Trackpad Disabled in BIOS, Trackpoint Enabled:

Trackpoint: Works

Trackpad: does not work (duh again)

 

Palmrest Connected, Trackpad Enabled in BIOS, Trackpoint Disabled:

Trackpoint: Does not work

Trackpad: Does not work

 

Palmrest Connected, Trackpoint and Trackpad Enabled in BIOS:

Trackpoint: Does not work

Trackpad: Does not work


Palmrest Connected, Trackpoint and Trackpad Disabled in BIOS (I don't know why I included this):

Trackpoint: Does not work

Trackpad: Does not work

 

Does anybody know what is wrong?  I really hope it isn't my motherboard.

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11608 Posts

01-02-2010

US

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Re: Trackpad Not Working Even After Replacement

2014-06-12, 23:11 PM
It is hard to diagnose from 3000 miles away, but my guess is that if the cable got wet, so did the connector on the motherboard and/or the traces to it. If it was just water and only a drop got on the motherboard, it is possible that there is a small short at the connector (either on the outside or the inside) If that is the case, maybe cleaning it with electronics cleaner (best) or denatured alcohol will help.

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.
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6 Posts

06-12-2014

Florida

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  • Message 3 of 6

Re: Trackpad Not Working Even After Replacement

2014-06-12, 23:13 PM

How can I reach into the little ribbon connector?  All the q-tips I have won't fit in there.

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6 Posts

06-12-2014

Florida

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  • Posts: 6
  • Registered: ‎06-12-2014
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  • Message 4 of 6

Re: Trackpad Not Working Even After Replacement

2014-06-12, 23:45 PM

I cleaned everything I could reach with 70% Isoprobyl Alcohol.  It still does what it was doing before.  I guess that means what I've been dreading... the motherboard is messed up.

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11608 Posts

01-02-2010

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Re: Trackpad Not Working Even After Replacement

2014-06-13, 1:59 AM
70% alcohol is 30% water. Every time you use it, it makes things worse

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.
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6 Posts

06-12-2014

Florida

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  • Posts: 6
  • Registered: ‎06-12-2014
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  • Message 6 of 6

Re: Trackpad Not Working Even After Replacement

2014-06-13, 17:58 PM

oh. well crap.  I'll try again with some denatured alcohol.

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