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AnyNameWorks
What's DOS?
Posts: 4
Registered: ‎05-16-2015
Location: Egypt
Views: 1,475
Message 181 of 189

Re: B5400 Touchpad problems Win 8.1

Hello, I have the touchpad problem too (B5400)
I wanted to do Harry's method, I'm completely new to disassembling. Did you cut the foil and placed the electrical tape at which side of the touchpad?
do I need to remove the keyboard for that?

dericku77
Paper Tape
Posts: 2
Registered: ‎11-25-2015
Location: Romania
Views: 1,464
Message 182 of 189

Re: B5400 Touchpad problems Win 8.1

You just need to cut the foil, is not need to place the electrical tape.

Download service manual for B5400 http://download.lenovo.com/pccbbs/mobiles_pdf/b5400_m5400_hmm_en_20140314.pdf and follow all the steps to remove Keyboard bezel (page 47 from manual). 

Is not hard , you need to have a suitable screwdriver and pay attention to the type of screws.

AnyNameWorks
What's DOS?
Posts: 4
Registered: ‎05-16-2015
Location: Egypt
Views: 1,432
Message 183 of 189

Re: B5400 Touchpad problems Win 8.1

I did it!
I cut the foil under the touchpad as Harry described and it seems working pretty good so far.
thanks Dericku77 for explaination Smiley Happy
and guys believe me if I can do it anyone can do it Smiley Very Happy

benteudarius
What's DOS?
Posts: 2
Registered: ‎11-25-2016
Location: RO
Views: 671
Message 184 of 189

Re: B5400 Touchpad problems Win 8.1

done this and now my touchpad is not working any more Smiley Sad i did not touch any conections, cables...it looks exactly as in the images 

stewnaylor
What's DOS?
Posts: 3
Registered: ‎12-16-2015
Location: UK
Views: 661
Message 185 of 189

Re: B5400 Touchpad problems Win 8.1

Hi,

I would double check the cable from the touch pad to the system board just incase it has popped out of the connector.

I did this on mine and had no probems with it since.

Hope it helps.

Stewart.

benteudarius
What's DOS?
Posts: 2
Registered: ‎11-25-2016
Location: RO
Views: 648
Message 186 of 189

Re: B5400 Touchpad problems Win 8.1

yess, you were right...now it works and the problem is solved! thanks a lot!!!

stewnaylor
What's DOS?
Posts: 3
Registered: ‎12-16-2015
Location: UK
Views: 645
Message 187 of 189

Re: B5400 Touchpad problems Win 8.1

Your Welcome, and thank you for the update.

Regards,

Stewart.

jaakkokuja
What's DOS?
Posts: 1
Registered: ‎02-19-2017
Location: FI
Views: 526
Message 188 of 189

Re: B5400 Touchpad problems Win 8.1

Had this same problem with my B5400 but removing the foil worked! Thank you Harry 72!

Dealogic
What's DOS?
Posts: 1
Registered: ‎11-13-2018
Location: GB
Views: 99
Message 189 of 189

Re: B5400 Touchpad problems Win 8.1

You beauty worked like a charm,
Another wierd thing i found was if u left a wirless mouse adaptor plugged in. The touchpad worked fine too, strange, but who cares touchpad back after foil removal, 🤗🤗🤗🤗

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