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Discussion Starter · #1 ·
Hey guys, my truck is just being finished up at the installer and they can’t get the wifi controller to work. When they try and hook up the pc or phone it says it needs a firmware update and then goes to a 404 error code. Has anyone else experienced this and know a fix?
 

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You have to do the FW Update hard wired 1st and then connect the WiFi HEC Module.
 
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2017 GMC Sierra 1500 Denali
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I have one but never used it. Maybe this can help or reach out to msc. @dobslob any advice?

 
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