Keyboard issue.

[emcze]

Hi,

 

I have problem with keyboard. First time stop working W, i thought that problem is mecanical because of WSAD in game. I have M18X r2 and know that need green ribbon keyboard. My original is NSK-D8F1D. Green ribbon keyboad has M17X R4 too. I have two working and one for a parts. All have NSK-D8G01. I took one keyboard and worked... 5 minutes. Stop working few numbers. I put it back to M17X R4 and worked fine. 

I took second one from M17X R4 and worked... one week. Maybe this type is not fully the same like mine. I bought keybord with the same number NSK-D8G01 and wored. Now, one week later stop working R T V B F G 4 5. WTF ?? It's not possible to broke 4 keyboards in one month. 

 

 

I checked keyboard ribbon socket and cleaned. What else can I do ??  

[TheSin]

According to

On 7/20/2024 at 10:34 PM, emcze said:

I put it back to M17X R4 and worked fine. 

 I can assume there is a mechanical problem in the keyboard connector. Probably there are some cracks in solder joints between the connector and PCB, or maybe there is some dirt inside ihe connector itself, or force in the connector is not enough for good and stable contact. Keys R T V B F G 4 5 share KSO6 line (pins 21/22 on the connector), so I suggest you to double check this line.

 

Spoiler

 

[emcze]

On 7/25/2024 at 7:03 PM, TheSin said:

 I can assume there is a mechanical problem in the keyboard connector

 

I checked and cleaned it after first keyboard Issue. 

 

I found seller with completely new, never unpacked, green ribbon M18X r2 keyboard. I paid funny price for it.

 

 

One minus is that is european -nordic key setup. 

 

 

but I replaced keys with old one and have new keyboard.

 

 

 

[emcze]

New kayboard worked 1 day... now tot working more than half keys. It is strange but it is like lottery, a different set of keys stops working on each keyboard.

[Maks0098]

1 hour ago, emcze said:

New kayboard worked 1 day... now tot working more than half keys. It is strange but it is like lottery, a different set of keys stops working on each keyboard.

I have this problem now on my second M18x. Half of the keys on it stopped working and I replaced it with a new keyboard. But after a short time, almost all the keys on the new keyboard stopped working. I still have artifacts if the built-in video card is enabled. My main M18x used to have something like this. I once had such artifacts and D on the keyboard stopped working. A month later, the motherboard died (it seemed like a chipset, but I didn’t figure it out, I just ordered a new one for $200). I think your motherboard is dying and dragging down the keyboard. Either this is a connector or keyboard problem. But watch when you use your M18x in SG or IGFX mode. You may experience text distortions and problems with textures in games. Then the problem is definitely in the motherboard.

[emcze]

2 minutes ago, Maks0098 said:

I think your motherboard is dying and dragging down the keyboard

but if I connect this keyboard to my another M17X... keyboard works

[emcze]

11 minutes ago, Maks0098 said:

I just ordered a new one for $200).

 Do you think that it will be ok ??

 

https://www.ebay.pl/itm/226181266746?itmmeta=01J4PZVGZ40YMW78K2SSGZW7QG&hash=item34a9743d3a:g:fC4AAOSwEW1mYmjY&itmprp=enc%3AAQAJAAAA8NsL0s2pqeeSunmIrMLdWpOcEp4RT4h4PZUn0AdjlNw0WZBkm9dxTHZr5D%2F7Zig0NpoaBGtgA2g%2Fri0QElpOTOyTRiRAkc8WRrY9sspeEXA2oKZerRzkvUtdUSp4iK2RQE%2B5s9%2FyjeSQg%2FJPKYPvp1pmQkHk5evsX3wfIzfzyCwv1QO8j0b0FPCLAnIX%2FvrSJy0P7TeCuDgRfjqwmHPlS7mI4oh61kbUh1hXy%2BYHoY8%2Bi3zveC4qrqY5fRv5E7oViAblLPa%2BfYodpIZeHihSDQX10GMjT3uXzhmCpM4SAv3AOwmRFXvfE4XYWKhVALKaWg%3D%3D|tkp%3ABFBM0o_u36Vk

[Maks0098]

14 minutes ago, emcze said:

 Do you think that it will be ok ??

 

https://www.ebay.pl/itm/226181266746?itmmeta=01J4PZVGZ40YMW78K2SSGZW7QG&hash=item34a9743d3a:g:fC4AAOSwEW1mYmjY&itmprp=enc%3AAQAJAAAA8NsL0s2pqeeSunmIrMLdWpOcEp4RT4h4PZUn0AdjlNw0WZBkm9dxTHZr5D%2F7Zig0NpoaBGtgA2g%2Fri0QElpOTOyTRiRAkc8WRrY9sspeEXA2oKZerRzkvUtdUSp4iK2RQE%2B5s9%2FyjeSQg%2FJPKYPvp1pmQkHk5evsX3wfIzfzyCwv1QO8j0b0FPCLAnIX%2FvrSJy0P7TeCuDgRfjqwmHPlS7mI4oh61kbUh1hXy%2BYHoY8%2Bi3zveC4qrqY5fRv5E7oViAblLPa%2BfYodpIZeHihSDQX10GMjT3uXzhmCpM4SAv3AOwmRFXvfE4XYWKhVALKaWg%3D%3D|tkp%3ABFBM0o_u36Vk

maybe yes, but I ordered mine on Aliexpress. It's still working for 2 years without any problems.
https://a.aliexpress.com/_EHTs1Et(this)
free shipping

[Maks0098]

22 minutes ago, emcze said:

but if I connect this keyboard to my another M17X... keyboard works

I think it has something to do with the motherboard (it dies itself or something with the connector on it).

[emcze]

1 hour ago, Maks0098 said:

I think it has something to do with the motherboard (it dies itself or something with the connector on it).

 

Ok. The same seller from ebay has it on Ali. I pay about 175 USD. It's good price and maybe better to buy it.

 

EDIT:

 

I bought it.

[emcze]

Now I do some experiment. I bought blue ribbon type new keyboard ( paid 10 euros ) and connected. Works like green one. We will see what will be tomorow 🙂 

[Eban]

@emcze

not sure at all but give this a try before you spend any more $$

Saw this on Reddit and thought of you 

 

"You can try this fix, but it may not work. Go to device manager, find Generic Usb hub under serial bus controllers, right click properties. It should say Hub 3. Go to power management and remove the tick for “turn off this device to save power” Do the same for realtek/intel bluetooth under bluetooth in device manager Do the same for Usb input device under human interface devices."

 

 

https://new.reddit.com/r/LenovoLegion/comments/1dcbo4o/lenovo_y74015irh_keyboard_completely_stopped/

[emcze]

6 hours ago, Eban said:

not sure at all but give this a try before you spend any more $$

I iwill check it, thanks !!

 

but... third day I use blue ribbon and still works. Green ribbon after one day start lose some keys.

[Maks0098]

7 hours ago, Eban said:

@emcze

not sure at all but give this a try before you spend any more $$

Saw this on Reddit and thought of you 

 

"You can try this fix, but it may not work. Go to device manager, find Generic Usb hub under serial bus controllers, right click properties. It should say Hub 3. Go to power management and remove the tick for “turn off this device to save power” Do the same for realtek/intel bluetooth under bluetooth in device manager Do the same for Usb input device under human interface devices."

 

 

https://new.reddit.com/r/LenovoLegion/comments/1dcbo4o/lenovo_y74015irh_keyboard_completely_stopped/

it didn't work for me, but I have a keyboard and it doesn't work in the BIOS, maybe it works for @emcze in the BIOS, but not in Windows?? Because I forgot to ask this

[emcze]

28 minutes ago, Maks0098 said:

in the BIOS, but not in Windows?

 

No, if I had keyboard issue was the same in the BIOS and in the Windows. If arrows keys stoped working I used arrows from numeric keyboard in the BIOS.

[Eban]

Pity.

 

Anyway I can not give proper credit for this schematic, came from old NBR I think.

If keyboard or trackpad stopped working in M17x R2 then it would not get power to even boot from battery.

Hope it might help just a little.

 

R2 schematic.txt

[emcze]

After almost 2 weeks blue ribbon still works !!!! 

 

All green stoped works after 1 to 5 days.... 

[emcze]

but why ?? 

 

M18X R2 originally on green tape works well only on blue ribbon. 

 

Tomorrow or monday I should have new PCB and I'm curious what will be after replace 🙂 Green or blue ??