in ThinkPad: T400 / T500 and newer T series Laptops https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T-series-Laptops/T420-Keyboard-faults/m-p/4445155 ThinkPad: T400 / T500 and newer T series Laptops topics Mon, 03 Jun 2019 17:30:00 +0000 tp01_en <![CDATA[ ]]> https://forums.lenovo.com/topic/findpost/1300/4445155/4445155 Hello!

 

So today, I decided to replace the thermal paste on my CPU as I was noticing the idle temps were pushing 55-60C 

 

After completing the task, I endeavoured to test the system before completely putting the fascia and back screws in. 

 

When I did so, I ]]> Mon, 03 Jun 2019 17:30:00 +0000 https://forums.lenovo.com/topic/findpost/1300/4445155/4445155 Jakezxz1 <![CDATA[ Re: T420 Keyboard faults ]]> https://forums.lenovo.com/topic/findpost/1300/4445155/4445186 There is no driver.  The only thing I can imagine you could have done wrong is to put the screws back into the wrong places.  The 4 screws that hold the keyboard bezel are 15mm long, while the screw in the center (keyboard) is 10mm.  Too long of a screw in the center hole will dama ]]> Mon, 03 Jun 2019 18:19:46 +0000 https://forums.lenovo.com/topic/findpost/1300/4445155/4445186 richk