Dead Mic In...
I have had this issue since the first time i tried to use the mic input... i didn't discover this until just before xmas when i tried to set up a streaming channel on youtube and twitch, where i was going to use my Helix for all audio capture.
having experienced a 3 week turnaround on a previous repair with the UK service agent, am reticent to send my Helix away again as i use it to record daily.
i have had to work around this by using my Presonus USB audio device for the mic, not ideal and. a pain in the arse when recording in Studio One, as i have to change audio device to record vocals after guitar or other instruments with my Helix.
based on this, i have got a sponsorship deal with Positive Grid to do my streams with their stuff (Bias FX Elite), as i can use a USB audio interface (mic in one side, guitar in the other)... less of a faff around!
if there was some form of loan unit, even if repaired/replaced units, that would make the wait acceptable... but 3 weeks to have a scribble strip replaced and the expression pedal re-calibrated to go back to zero is really not acceptable for a unit that costs over a grand!
there seems to be a lack of spares stocked here for some reason... for a flag-ship product i expect better support internationally. having worked for a major amplifier manufacturer in the UK and distribution of high end custom USA guitar brands (Hamer and Ovation), we endeavoured to sort out customer issues in days, not weeks.