[batdark]

I thought about that also, but the point is that right now i cant spend that money on a mouse to do a se which could go wrong

Okay let's see if someone has info about SN it.

As far as i know, its claiming your device isnt working correctly due to an error, then they Will ask for a SN of the product  and maybe a POP ( proof of purchase ), then if the device is un warranty they Will issue a replacement to your location, but before that they could ask for a POD ( thing i dont know how to handle apart of a corrupted file )

Yes, but every shop works differently, I don't know if Logitech ask for POD or they ask to return the item (then you have to box them)