I recently had to re-seat the keyboard, which is a common trick for old boxy Dell laptops when the keyboard starts having...

I broke my SGP311 screen display by dropping it. Glass was intact but LCD was not readable anymore because a lot of...

Same here, on the Win key. I tore down the key assembly and the issue seems to be below the rubber dome, at the membrane switch (the part sensible to pressing that registers the keystrokes). As far as i can tell, this membrane switch works as follows: (1) being a conductive circuit layer, it is made of some thin sheet with printed circuits (2) that is positioned under the rubber dome (3) when you press a key, the rubber dome compresses, and the conductive part of the membrane contacts another layer below it, closing some circuit and registering a keystroke Therefore there must be something, like a bit of dust between these contacts that causes the key to be super sensible. It probably requires a PCB-level tear down, or at least a good cleaning with compressed air. On top of that, if my thinking is correct, the design of this keyboard is flawed being so susceptible to particles.

huntrqueen, it would be useful if you could provide an higher level of detail about up to which level your laptop was torn down. In my understanding you did not touch the software though, correct? Focussing on the hardware: Laptops' wifi antenna generally lives inside the top area of the display lid. it is connected through two cables (generally black and white) to the wifi module which is plugged into the motherboard, under the keyboard. so the said cables run through the hinges' cases of the laptop. In the same way, a LCD / digitizer connector runs from the display itself to the motherboard through the said hinges' cases. My rough guess is that whoever tore the laptop down forgot to connect back some connectors. It happens all the time, happened to me as well. If this guy knew what he was doing, it is very unlikely that any part was damaged. Just tear it down again and find the disconnected guys

ciao and thanks for this guide @smilzo !

I recently had to re-seat the keyboard, which is a common trick for old Dell laptops when the keyboards starts having issues and types nonsense. However after putting it back together, the keyboard doesn’t light up anymore. what am I doing wrong? did I miss a connector?

thanks for the teardown, this is what a nightmare looks like.

hope I will never have to fix my camera