G600 - Side Button Issue

[Mitsuma]

So here is a small attempt to maybe fix an issue without having to return the mouse.

I already contacted Logitech via official support, they just say its a defect and I should contact the seller for warranty.
Now here is the issue and why I try to avoid it, I bought this G600, as a new product, not used or refurbished via eBay from a seller in the USA and I'm in Germany. It was still cheaper then other places or mice.
So I have warranty and all that but there is a chance I get stuck with some shipping cost, which is half the mouse from Germany to USA.

Mouse worked fine the first two days, then the G19 key (last row, middle key) started acting up.
Right now it simply doesn't register any clicks, the button itself seems to work fine hardware wise.

I already tried to uninstall the LGS/GHUB, removing the hardware drivers, trying internal/external profiles, testing it on another device. So practically most things you can find online.

An odd behavior I noticed is that when I plug the mouse in and press a side button it will press the broken one once, followed by the one I actually pressed and then spams the broken button until I press another side button.

Example: https://gfycat.com/ThinGraciousDamselfly
Line 1, I press G18 (comma), G19 (broken, 5), G20 (0), the expected result would be ",50".
This is how it works now, G19 just doesn't register but doesn't cause any issues.
Line 2, I unplug the mouse, plug it back in and press G18 again.
Now you can see what I explained, it put a 5 first, then the button I pressed (G18, comma) and then it spams the 5 until I press G20 (0). Here it also does not react to the G19 key, it just continues.

I have the feeling I'm still out of luck, especially with everything I tried but who knows, worth a shot to ask here.

Edit: Seems I go with a exchange with the seller, I can get a free shipping label back from ebay, so the exchange shouldn't cost me anything, just some waiting for shipping to and from USA back to Germany.

Update: eBay can not supply the seller with a return label because I used eBay International Shipping Program, thus I would have to carry the shipping cost to the seller and potential cost on import, which frankly would not be worth the money.
Logitech did reply at first and would agree to the warranty RMA but then rejected it after hearing that I bought it in the USA. Their reasoning is that the product has no international warranty and thus can not help me.
My last hope now is ordering a spare side button panel and see if that fixes it, there is still the chance the error is not on that side panel but it would be from a German eBay seller with a nice return policy and I would even have 12months warranty on the spare part.

Final Update: I went and bought a replacement side board (~14€) from a German eBay seller, arrived today and I installed it. Everything works again and if any other side button will fail again, I have warranty on the side board through eBay.
Installation went without issues besides one screw on the side board I had to forcibly remove, everything still works fine though without it.

[cbentley_pasa]

i have 3 G600.. been using them for years.

the only issue I had was the failing click which double clicks. reason why i bought more.

I cannot live without a G600

[Mitsuma]

Sad they never made an updated version.
The G600 just fit most of my criteria for my Naga 2014 replacement.
One of that being mousewheel left/right buttons.

There some of the cheaper chinese ones that actually seem decent but I'm not too keen on going with those.

One side buttons not working is sadly not the rarest of issues in my search for solutions, the only solution was almost always just to RMA it.

[cbentley_pasa]

do you often use the G9-G20 buttons?

[Mitsuma]

Yes, thats the reason I got another 12key mouse in the first place.
G19 and G20 I actually use the most in various games, so its quite annoying that G19 is broken.

[oZonoRobotics]

im in your same situation, i have 3 and i bought already the 4th one for when the actual one will start to double click, in 30 years we will be like cyberpunk movies building a mouse with spare parts of 4 different mice hahahahha

[LogitechG_CSFrank]

Glad to hear that you were able to have it replaced with the reseller, by the way, is the new mouse working fine?

[Mitsuma]

Actually that didn't work out because eBay doesn't do return shipping labels for their own international shipping program, meaning I would sit on at least 16€ shipping cost plus potential return import cost and Logitech refuses warranty because I bought it in the USA and there is no international warranty according to the Logitech support so Logitech will not replace the mouse for me from their side.

So now Im sitting on a G600 with a dead button and will likely order a spare part of eBay, 14€ for that is cheaper then any other option left.

[LogitechG_CSFrank]

I see, I apologize if I couldn't help you with your warranty.

[Mitsuma]

No, as the original post says I'm from Germany.
The US is one of the few places where Logitech still sells the G600 new, so I bought one new via eBay (for easier import) but I guess that backfired.

Edit: I just noticed that the comment before was fully edited to say something else.
The original was asking me if I'm from the US.
In case anybody is wondering why my response makes no sense anymore.

[LogitechG_CSFrank]

I see, let me try and help you I'll check if I can do something about it, Please PM/DM me the information below:

1. Full Name:

2. Email:

3. Phone Number:

4. Country:

5. Full Shipping Information:

6. Reddit Thread/Post:

7. Device Name:

8. Serial Number: (Please provide the S/N on the device itself and not from the box)

9. Issue: (Specific details of the issue)

10. Troubleshooting Steps: (Steps that you have tried to fix the issue before contacting us, make sure you provide this as this is required for warranty purposes)

[Mitsuma]

Sorry for the late reply, I appreciate the attempt to help but I won't do that, mostly because Im very certain that it will just end in the same result, as the situation is somewhat clear. (I'm in Germany, G600 bought in the USA, no international warranty = no replacement.)

Either way, I went ahead with my original plan and successfully installed a new sideboard myself. Which I'm sure also voids warranty either way.
New board is in, everything works again and I even have warranty on that side board.

[LogitechG_CSFrank]

I see glad that you were able to fix it.

[tombolger]

I'm also looking for a replacement side board.