My keyboard stopped working recently as windows says as the title, other keyboards work with same usb port.
#Unknown USB Device
pure ocean
snow ginkgoBOT
My keyboard stopped working recently as windows says as the title, other keyboar...
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dim imp
pure ocean
already did
next finch
best to check the points below.
- for the guide make sure to "Restart" the system (not a shutdown)
- Try another USB port further away from the current location
- Try another USB-C cable
pure ocean
best to check the points below.
- for the guide make sure to "Restart" the sys...
Why would it work with USB-C has worked over 6months on USB
It start doing it recently + works on other PC usb fine
next finch
just to check first is the problem resolved with a different port or cable
if it is resolved i can give a few points of possible causes
if the problem is limited to that current USB port it could be caused by a pretty broad range of things
- The USB controller
this has an issue or problem and can sometimes be affected by other USB devices connected to the same controller
- The USB port
the port may have damage or issues for instance substance on top of the pins that send data
- The USB cable
may have a thin wire inside the cable or slightly damaged which causes data loss witch could be made worse if the controller sends data at a lower voltage or bad contact on the connectors
- The keyboard USB-C port
may have substance on the port internals or corrosion on the port or PCB pins
pure ocean
if the problem is limited to that current USB port it could be caused by a prett...
Like i said other keyboards work fine on the USB
next finch
just to check have you tried with other USB-C cable or ports ?
and did this show any change
( can help narrow down what to checK)
pure ocean
just to check have you tried with other USB-C cable or ports ?
and did this sho...
No changes and yes tried other ports.
next finch
in that case best to inspect the inside keyboard port (if anything stands out)
and to check the Port on the PCB (near the pins)
pallid blade
If it works fine on another PC it wouldn't be the keyboard?
next finch
i got confused by that too - they mentioned "Other" keyboards
pallid blade
Works on other PC fine
Other PC here
next finch
Why I think it’s best to check the port and port pins: there have been cases where a bit of corrosion on the pins can mess with how data is received or sent.
Some USB controllers can read it fine as they have a re-driver to boost the signal, while others may have issues.
(The example image I have is for a destroyed port, but it’s close enough to show what corrosion looks like and how it can short.)
pure ocean
If it works fine on another PC it wouldn't be the keyboard?
Yes thats right
pure ocean
https://www.youtube.com/watch?v=wRVnK958Tdk
Il look it up
next finch
If it works fine on another PC it wouldn't be the keyboard?
i will note just for clarity
the 80HE 8k - (USB HI-speed) this can happen fairly easy as data is sent at 0.4v so data loss/issue from different PC can happen (changing to 1k can be a test for this too)
while for the 60HE this would be pretty hard to trigger as this only supports (USB Full-Speed) and sends data at a higher voltage 3.3v so less chance this is lost due
but in this case best to check just incase
pure ocean
i will note just for clarity
the 80HE 8k - (USB HI-speed) this can happen fairl...
Hmh i will check
pure ocean
i will note just for clarity
the 80HE 8k - (USB HI-speed) this can happen fairl...
Looks normal?
next finch
the pcb/port looks normal as for the port intanals hard to say (bit blury) but this is hard to capture
next finch
the weird part is that this problem is limited to the current computer
one last check can you try placing the keyboard into wooting restore and see if it is detected as wooting restore instead of the error unknown USB device (port reset fail)
this can be done by
- Unplugging the keyboard
- Holding down (backspace + FN)
- Plugging in the keyboard
- After 3 seconds let go of the keys
- Check if wooting restore is detected
pure ocean
the weird part is that this problem is limited to the current computer
one last...
Nah doesnt work it does the same i connect 10seconds after screen freezes and on vursor is the blue windows loading 5sec unfreezes and the error appears there
next finch
and no other devices have this problem?
next finch
so right now i am a bit confused as
- The keyboard works on another device
- no change when trying other USB ports or cables
- nothing looks out of the ordinary on the keyboard port or pin area
- when placing the keyboard into wooting restore the issue persists (this will cause the keyboard to be detected as a different device)
so checking in with a colleague
for now can you send a ticket and once sent give me a DM with the keyboard serial number so i can find the ticket
(Link To ticket)
@pure ocean what type of device is the keybaord connected to
For instance
- is this a laptop with only 2 ports close to each other
- A desktop with mutiple ports (with some further away)?
pure ocean
<@963095997834227762> what type of device is the keybaord connected to
For ins...
Desktop
next finch
so good news i shared this case with a colleague and it appears i missed something pretty obvious now that it was pointed out (sorry for mising this)
can you please attempt to clean this area with a soft brush there seems to be some matter on the pins that send/receive data
pure ocean
so good news i shared this case with a colleague and it appears i missed somethi...
What kind of brush
dusky plaza
If you buy a cheap toothbrush, that should be fine.
pure ocean
so good news i shared this case with a colleague and it appears i missed somethi...
So what do i need to clean there?
dusky plaza
The little metal legs above the R10 text.
pure ocean
Yh just brush it?
next finch
a soft brush or q-tip anything to reach the point
in the image you can see a small substance between the pins that is most likely causing a short and the cause
so if you clean and remove this substance i suspect it will resolve the problem hopefully
pure ocean
Did the brush help?
pallid blade
It looks like something is still between the legs above the 0
next finch
pure ocean
I mean how can i get it out with brush
next finch
in most cases the brush bristles can reach and dislodge residue or substance
but in some cases it may require a liquid like (IPA) or (distilled water) to loosen it up
next finch
so i am not the best at explaining this as it is a bit complicated
so i will try to make a rough image to help explain why
Data is pretty much 0/1 - with (1) being higher voltage while 0 Is close to 0V
Black: the data 0/1 signal from/to the keyboard
green/blue: the threshold that a voltage needs to reach to count as data (1)
red: noise from the short
as usb controllers work differently, the green may have a higher threshold and disregard the red voltage (noise) so the keyboard works fine, but on the other device (blue) it can't filter the noise out and causes the error
this doesn’t include every scenario but is a basic idea of the problem, hopefully it’s shows what i mean
that red line could be from - the other data line (would need to check usb-c port pinout to check)
pure ocean
so i am not the best at explaining this as it is a bit complicated
so i will try...
Its very hard to clean the last part 😄
next finch
yea it is pretty far at the back of the port (most of the time tends to be on the surface and anything easily falls off)
summer breach
I can imagine that a toothbrush with uneven brushes can be better. As it's in the corner you likely still have issues really reaching it.
I think using isopropanol is a must here.
Carefully using a needle to scrap it out can be helpful too.
While it's hard to see on the pictures, as these aren't macro shots and picture enhancements seems to be enabled, the two data wires of USB seems to be partially bridged. This can create signal loss, reflections and other problems. Depending how bad it is it can be that one USB controller might still can handle it while another does not. Also the quality of the USB port on the host side and USB cable plays a role. So it can be that there is maybe dirt inside the non working port which increases the signaling loss to a level where the USB controller can't handle it anymore.
Signals are tested via an eye diagram, like shown here: https://testusb.com/HSEYE.htm
The bigger the empty space in the middle where the signal don't reach the better. If the signal reaches the red mask the test failed which means the signaling would be considered to be bad. While the device might work if the red mask is only reached slightly every now and then it might not work reliable anymore everywhere.
pure ocean
Signals are tested via an eye diagram, like shown here: https://testusb.com/HSEY...
Whats this?
next finch
Whats this?
This video may help explain it
https://youtu.be/XFbJD6RE4EY?si=HfavTOvmEf0ERmy9&t=563
summer breach
Can you please provide a good macro shot of the USB port where the picture enhancements / optimizations are disabled.
pure ocean
Can you please provide a good macro shot of the USB port where the picture enhan...
Yes
Probadly need to sell this keyboard since it doesnt work 😄
Tried everything
summer breach
I need to see a better picture of this area after you tried to clean it as this is the interesting area.
deep escarp
can i just mention that if this keyboard is not even 4 years old you still have a warranty on it and can reach out to our support to get it RMA'd
summer breach
Yes, but getting the picture would still be nice.
pure ocean
Yesterday started doing this with my headphones too
😄
The unknown usb thing but its like that for 3-5 then the sounds come back and its connected back
What can it come from?
pure ocean
I can reward the person who helps fix this
summer breach
A port reset or descriptor issue indicates a bad USB connection in one way or the other.
It can be caused by a bad cable, damage, faulty parts or corrosion. For the later high humidity, especially when salty, like when you live near the coast, can cause damage over time. Otherwise if it's corrosion it's typically related to a liquide accident.
We can only provide support for Wooting products.
pure ocean
Fixed it by updating usb chipset drivers.
pure ocean
**We can only provide support for Wooting products.**
Wdym it literally is?
next finch
i think they mean this comment
summer breach
Do you know what drivers were installed before? These days this shouldn't happen anymore. Meaning even outdated drivers should not cause such a behavior.
The driver issue explains why you had issue with other USB devices too. Kinda obvious in hindsight. 🙁
Still, the pictures indicated corroded pins. Sadly we never saw how they looked after the cleaning.
So it's possible that there were two issues.
pure ocean
Do you know what drivers were installed before? These days this shouldn't happen...
I mean does it again now, driver reinstall doesnt help.
And yes still works with another PC totally fine.
pure ocean
HEY
summer breach
I don't really get what you mean. Do you still have issues?
According to the chat history there can be two independent problems. There can still be an issue on the board due to corrosion, so it's worth to see a close up picture of the USB port area. But as you mentioned issues with other USB devices too and with the driver before there is also the question if this might still plays a role. So do you also have trouble with other USB devices? To check this it would be nice to get a Registry dump of these two keys (HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB & HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\HID).
pure ocean
I don't really get what you mean. Do you still have issues?
Yeah got it again.
summer breach
So it would be nice if you can provide the requested data. You can either send the Registry dump to me in private or via the support ticket. But for the later please mention that it should be forwarded to me.
Can you test the Wooting with other systems? Even a recent tablet or smartphone should to the job. The Wooting should at least work as a keyboard there.