Razer Viper V2 Pro USB dongle started overheating?

Hi there, I’m using Razer Viper V2 Pro for the last two and a half years already. Everything was perfect until the other day I started hearing a noise from my computer that sounded like discovering new devices - multiple times, though no one was close to the running PC. A day later problems started. The mouse stopped working in the wireless mode. I’ve already tried EVERYTHING - all other usb sockets, reinstalling firmware, reinstalling software, etc. Since it stops working only in wireless mode I assume it’s an issue with dongle. The strange thing is that when it cools down and I reconnect it to PC or Laptop, the device is being discovered but it usually takes less than 1 minute to lose a connection with mouse. After that the USB dongle is not being discovered by the PC/Laptop anymore. I have to wait a bit till it gets cool and it works for a few secord again… I’m already past the product warranty period and I don’t see any replacement  USB dongles available anywhere. Please let me know how can I make it fully operational again.. It cost me over +160$ (in local currency) when I bought it just over 2 years ago… and I would still like to use it in the wireless mode too...