Hello
 
Is anybody from EVGATech going to slove this problem?!?! I have exacly same issue that  scrolling mouse wheel down works very bad - 2 lines down then 1-2 lines up. Changing to 1-line scroll do not help, no settings can fix it. 
Can we get some firmware update to fix it? Can it be fixed mechanically? EVGA please answer cause I like this mouse but I'm going return it if I don't get answer in reasonable time. update: my OS is windows 7 and mouse  X5L
 
 
 

This bug went away on its own for me, AGAIN.
It comes and goes randomly on its own for no reason. Extremely annoying. It pains me to say that I won't buy another EVGA mouse anymore when this one breaks.
sigh. so hard to find a mouse with good sensor for left hand usage.

i send my x5 to rma, and they replace it new one. there is no problem on my new x5. problem is not because of software (i didnt install mouse app again, i use my ex mouse profile file) or rubber. i recommend if you have the same problem, send your mouse to rma.

I had the same problem and I sent My mouse to RMA, they sent me back a new one the work perfectly but after couple of monthes it's back again.
I don't know whay EVGA keep selling this mouse if it is ruind without fixing enithing..
I wont my money back!

I'm having the same issue with my X5. When I scroll up it sometimes scrolls down instead.
Shame as I really like this mouse.

I bought my X5 mouse with a promo when buying an EVGA power supply. It had the scroll issue right away but since I didn't really need it, took a long time to RMA it. Did that a couple weeks ago. Replacement has the scroll issue and was able to reproduce it right away. Had a firmware update available and still did it after that update. Got a new replacement right away and immediately noticed the scroll issue. I'm not even going to bother now. I'll stick with mice that are....logical tech.....
 
Still, disappointing we aren't even getting updates here when we were at the beginning. They said the issue had been reproduced but then.....nothing.

I got the mouse recently and I'm having the same scroll wheel issue. I love the mouse, but I need a functioning scroll wheel. Has anyone figured out a way to fix the problem or should I just try to RMA? 

I just tested the wheel messages sent to an app using Spy++ from Microsoft. It proves that at least spinning the wheel in one direction, things go wrong.
All good instead in the other direction.
 
I sent the full file to support. Here I post just a small section where you can see that once in a while the scroll message has the opposite direction.
 
<000013> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:-120 xPos:788 yPos:607
<000014> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:-120 xPos:788 yPos:607
<000015> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:-120 xPos:788 yPos:607
<000016> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:-120 xPos:788 yPos:607
<000017> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:120 xPos:788 yPos:607
<000018> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:120 xPos:788 yPos:607
<000019> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:-120 xPos:788 yPos:607
<000020> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:-120 xPos:788 yPos:607
<000021> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:120 xPos:788 yPos:607
<000022> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:-120 xPos:788 yPos:607
<000023> 0000000000020490 P WM_MOUSEWHEEL fwKeys:0000 zDelta:-120 xPos:788 yPos:607
 
All those zDelta are  supposed to be -120, but a bunch of +120 are retuned too, causing random back-scrolling.
Spinning in the other direction instead reports perfectly consistent zDeltas.
 
This doesn't really tell if it's a HW or SW issue. It just proves that there is an issue :)
 
Rob

(language removed) This thread (and issue) is 1.5 years old and yet this same mouse was featured during the Christmas sale.  It was a bargain.  Now it's just useless.  So how is EVGA's return policy?
 
Edit - The EVGA Christmas sale also featured the Torq X10 Carbon.  That's the mouse I'm using now and it's working perfectly.  It's a shame the x5 has a fatal flaw.  I prefer it over the X10 Carbon.  The x5 has a minimalistic design that is really sharp when the LEDs are lit.  Also, the x5 thumb "back" button is better.  The X10 back buttons are too prominent and it makes hitting the "forward" button an overly deliberate act.
 
TOS violation removed by Cool GTX

As of yesterday, product support is asking for some more time to send me a firmware update. Hope to hear from them soon.
If that works, I'm sure the update can be posted for everyone.
 

Laser

I asked if they had an ETA for a firmware update, but they said they didn't. I started the RMA process.
Hopefully it's just a defective wheel and the replacement works fine.
 
I have to give kudos to EVGA support. They respond quickly, efficiently and to the point.
 

Well, I got my mouse exchanged and the new one is definitely better. I still get a wrong scroll message once in a while (maybe every 200 clicks or so, based on Spy++) so I hope that a firmware update in the future makes it perfect. In the meantime I can live with this.
 
But the scroll wheel is smooth in one direction, and rough in the other. A bit annoying. Sometimes seems like it's stuck and need some extra effort to keep rolling. Wonder if I should get some WD40 in there...
 
There are definitely some manufacturing or quality controls issues here. Hope EVGA takes note.

Holy CRAP, is there a fix for this problem yet? I really want to like this mouse. but I'll have to return it if this mouse wheel thing is a permanent flaw.

EVGA you guys really need to pay attention. I am on my second mouse from you guys. I RMA'd the first because it died. Get this issue fixed NOW! This has been going on for how many years and even the mods don't pay attention to this thread anymore. I am fed up and will buy a replacement mouse from a different company. I would buy a different video card but right now the data miners have everything out of stock. Used to respect EVGA but after seeing how this support goes, not buying anymore of their stuff.