SMH5 firmware upgrade - Failed to recognize device. Cannot open USB

My SMH5 has stopped working with my iPhone for Siri commands (press top black button to invoke Siri to make calls etc). The advice was to upgrade my firmware.

So installed Sena software from the SMH5 downloads page. Installation went through and asked me to connect device which I did, and then the Windows hardware wizard popped up to install the drivers. All good so far. Then launched Sena Bluetooth Device Manager and whatever I do it will absolutely refuse to recognise the device.

My understanding that this is due to device drivers not being signed. I cannot disable device security as my PC has policy locked down.

But also, the firmware hasn't changes since 2017, pre iOS 13 (which seems to have introduced the problem).

So Sena support, are you going to fix this issue?


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