AlfaOBD issues

[Hot94Z28]

I went to try and adjust my speedo for my tire size and my tablet rebooted when trying to. Well I followed this video: and get to the last part when I get to the “clearing rolls information says failed? Please any help as my dash is lit up like a Christmas tree and can’t get it to work.


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[Hot94Z28]

Update, everything started working again after going back out and starting the truck. But I had to use the app I got with the MX+ on my iPhone to clear the check engine light.


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