I received the H4 a few days ago.
I played with it in a "stand alone" configuration (not connected to the PC) and it worked very well.
than I connected it to my PC to charge the battery and did not noticed that the PC was loading a driver...and disconnected it!
PC gave the alarm that the driver was not succesfully loaded.
I connecte the H4 again and checked the device manager: actually a driver "STMsomething" was there...but not operational.
I tried to reinstall it looking both in my PC and than in the net, but no way to find a good one.
so I deleted the driver, switched off the H4 and rebooted the PC to start again.
but when I reconnected the H4 I got the "error 43" message: unknown device.
no way to make the PC recognize the H4.
OS. win7 home
H4: firmware 4.0.5-7 -g57d62f2 built time:01.01.2020.
I also connected the H4 to another PC running win10PRO with the same result: "error 43"...
I am a little desperate!
best 73
de
i2NDT Claudio
