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  1. Escalade, EXT and ESV Forum - 2007-2014
    2010 escalade. I have a galaxy s20+ and when I hook my phone up with USB the screen says device unsupported. At first I thought it was my USB port but my nephew hooked up his iPhone and it worked perfectly. Is there a app on my phone that I need to download or anything? Or any other way to get...
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