aw17r2 keyboard

[AngelusMortis]

Good morning ppl

keyboard : some keys are not working from time to time

i ve this problem also on my aw7r2 i have this couple years. i and numpad 2 most of the times they start working after some time. now these two stopped. bios, drivers, cleaning,reapply ribbons, battery out etc done. hardware test all good...

and i think this happened after the two bios upgrades. even with downgrade  aint working 

i cant identify the problem. 

i really need some advice, couple techs said buy new keyboard blablabla, only 1 said to check bios of keyboard since i and numpad 2 aint connected 

thank you

[ItsTheDuckAgain]

so you got 2 different keyboards on which the same keys are not working? did I get that right?

[NelizMastr]

If @ItsTheDuckAgain is right, then you have 2 possible causes:

 

1. The keyboard design on these models has a flaw that causes this behaviour

2. The keyboard connector on the logic board is the real culprit

 

1 sucks but is easy to solve, just buy another replacement keyboard and 2 would mean there's nothing you can do but replace the motherboard or resolder a new keyboard connector.

[AngelusMortis]

3 minutes ago, NelizMastr said:

2 would mean there's nothing you can do but replace the motherboard or resolder a new keyboard connector.

can you explain this to me please?

[NelizMastr]

2 minutes ago, AngelusMortis said:

can you explain this to me please?

Your keyboard has a ribbon cable that attaches it to the logic board (often called motherboard, but this isn't always technically correct), and to attach to the board, it uses a connector that it slides into and locks it into place. If the connection isn't 100% solid, some keys might not work or the entire keyboard can malfunction. If the connector is to blame, you'll need to solder a new connector into place or find a replacement board. 

[AngelusMortis]

u mean this?

[AngelusMortis]

30pin? yes the side plastic lock pin is defective but why now? i dont know how to solder this

replacement board with 4980hq and 980 means 700 -800 $$ for something so tiny

[AngelusMortis]

13 minutes ago, NelizMastr said:

Your keyboard has a ribbon cable that attaches it to the logic board (often called motherboard, but this isn't always technically correct), and to attach to the board, it uses a connector that it slides into and locks it into place. If the connection isn't 100% solid, some keys might not work or the entire keyboard can malfunction. If the connector is to blame, you'll need to solder a new connector into place or find a replacement board. 

sounds risky for me.. how can i find the correct part for the keyboard?

 

[NelizMastr]

4 minutes ago, AngelusMortis said:

sounds risky for me.. how can i find the correct part for the keyboard?

 

Couldn't tell ya. Look on eBay or find the corresponding Dell part number (you'll have to research that yourself).