I bought the MARS 400S as an upgrade to the MARS 300 Pro to add to my lineup. I used it once at a wedding in April 2021 and today is July 2nd and I'm trying to use it again but the recipient gives me this error message "System Exception Error Code 2" and it doesn't clear. Basically, this item I paid all the money for is not good. I've tried looking for support on the Hollyland website to no avail. Now I'm left with this POS item that I don't need right now.
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