A4Tech KV-300H - unstable connection

morgenshtern

New member
AMD OS X Member
Joined
Jun 7, 2020
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Hi! I'm using A4Tech KV-300H keyboard for years. A few days ago bought new, updated version with Fn keys. It's absolutely the same A4Tech KV-300H version, but one right Windows button replaced with Fn key.

And this new version is VERY unstable. It randomly does not work and requires re-connection on random usb ports to work. It may stop working after a minute or after a few hours.

Moreover, when connected to any usb port, it appears instantly in IORegistryExplorer, but it can work or not.

All my motherboard usb ports are mapped via USB-Map.kext.


Anybody have such problems?


 
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