Keyboard randomly starts typing on it's own

[Yoola]

I've recently bought refurbished Corsair K65 LUX RGB and out of nowhere it rarely and randomly starts typing on it's own. It happened only 3 times so far out of the blue. I'm not sure what triggers it but it just spits bunch of key presses like some of the keys are being held down. At first I thought it was some kind of malware and I scanned my PC with Malwarebytes and Windows Defender and haven't found a single issue. I've tried standard recommendations from Google like uninstalling iCUE software, uninstalling all keyboard devices in Device Manager, scanning for malware, disabled NUM LOCK with different keyboard, force flashed fresh firmware.
As it doesn't happen often I can't find what's causing this, is it a defect keyboard? If it is, how is it not doing it all the time?

[kelvinhall05]

99% defective keyboard.

[RageTester]

Is it looking clean, maybe got loads of hair and other dirt under the keycaps?

[Bartholomew]

44 minutes ago, Yoola said:

I've recently bought refurbished Corsair K65 LUX RGB and out of nowhere it rarely and randomly starts typing on it's own. It happened only 3 times so far out of the blue. I'm not sure what triggers it but it just spits bunch of key presses like some of the keys are being held down. At first I thought it was some kind of malware and I scanned my PC with Malwarebytes and Windows Defender and haven't found a single issue. I've tried standard recommendations from Google like uninstalling iCUE software, uninstalling all keyboard devices in Device Manager, scanning for malware, disabled NUM LOCK with different keyboard, force flashed fresh firmware.
As it doesn't happen often I can't find what's causing this, is it a defect keyboard? If it is, how is it not doing it all the time?

"Refurbisched":

 

Store definition: returned for reasons unrelated to functioning, re-tested 100%, cleaned, as good as new.

 

Definition of what actually happens: returned due to intermittent malfunctioning, came back to store, turned on for 0.5seconds, "seems fine", slapped back onto shelves. Now second hand, still malfunctioning, but priced "as good as new".

 

Dont feel bad, we all fall for it at least once (mine was with an android phone of which the mike wouldnt work 1 in 20 conversations).

 

 

 

 

[Yoola]

17 hours ago, kelvinhall05 said:

99% defective keyboard.

Seems like, but can't figure out why it's not happening all the time, just randomly and with no indication what triggered it. Would you have an idea what's actually happening?

 

17 hours ago, RageTester said:

Is it looking clean, maybe got loads of hair and other dirt under the keycaps?

After your comment I went and cleaned it thoroughly. Even opened inside to check if there's something shorting the pcb but couldn't find anything. Cleaned keycaps with lukewarm water and dish soap, dried overnight. 

 

The issue happened again today. Weird thing is it did the numbers again, and in a row. "12456789124567891245678912456789124567891245678912 ...". Really can't put a finger on what's happening. 

[RageTester]

Is it only numbers? Longshot: https://windowsreport.com/keyboard-automatically-typing-windows-10/#7

[Yoola]

3 minutes ago, RageTester said:

Is it only numbers? Longshot: https://windowsreport.com/keyboard-automatically-typing-windows-10/#7

This time it was only numbers again, last one before this was Page Up and Down in a row. I have sticky keys disabled already  

[0x1e]

50 minutes ago, Yoola said:

This time it was only numbers again, last one before this was Page Up and Down in a row. I have sticky keys disabled already  

I would say there's a short somewhere on your keyboard, a specific short.
The numbers look random but it keeps skipping 3 and 0. Find out what they have in common and you might find your problem because they don't seem effected by this issue.

[Yoola]

2 minutes ago, 0x1e said:

I would say there's a short somewhere on your keyboard, a specific short.
The numbers look random but it keeps skipping 3 and 0. Find out what they have in common and you might find your problem because they don't seem effected by this issue.

"45694569456945694569456945694569456945694569456945694569456945694569456789,123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123"

 

This is a snippet from one of the keyboard screams the other day. 

[The_Geek]

Time to call the Exorcist...LOL

Does this happen with any other keyboard?

[Yoola]

Just now, The_Geek said:

Time to call the Exorcist...LOL

Does this happen with any other keyboard?

Nope, have G810 that this was supposed to replace and it doesn't happen on it. So it's definitely keyboard related, just not sure what exactly.

[0x1e]

15 hours ago, Yoola said:

"45694569456945694569456945694569456945694569456945694569456945694569456789,123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123123"

 

This is a snippet from one of the keyboard screams the other day. 

Return it.

[Yoola]

I've turned on Keyboard Test Utility to see which keys are being pressed and when, and after some gaming I saw numpad had some keystrokes recorded. This keyboard does not have a numpad. I've even made sure to turn off NUM LOCK with different keyboard. Does anyone know what's going on?

[KraigHunter]

Based of the info, I have had the same problem with that keyboard. I gave up and just bought another keyboard. but I could pull it out and see if it still does it. and they dont sell that same style of build quality (minus they keys)