Perfect, I had the same problem after installing UIFlow 2.0, it didn't detect the correct COM, using this method of holding the btnGo and then turning on the device the correct COM started working again (remembering that by doing this, the device remains with the screen disconnected, but communication works again). Thank you very much.
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Posts made by felpsconrado
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RE: Cardputer COM Not Workingposted in FAQS