Joe_ValleyMation Posted April 21, 2014 Report Share Posted April 21, 2014 Hi everyone, I'm having problems communicating with Jazz units via USB. I've installed the STMicroelectronics driver, the virtual COM port is shown in the device drivers. And I can actually communicate with the unit initially, but at some point the software can not detect the Jazz anymore. I've rebooted the Jazz, rebooted my PC, re-installed the driver, and just can't link to the Jazz via USB anymore. I actually tried with a different Jazz unit with the same results. The serial communication via the JZ-PRG works fine (not at the same time I use the USB off course). The versions I have are: U90 6.6.0 (DB 109) JZ20-R16 (latest firmware) Windows 7, 64 I'll appreciate your suggestions. Thank You! Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted April 22, 2014 MVP 2023 Report Share Posted April 22, 2014 Are you running the M90 software as administrator? Right-click M90 icon -> Properties -> Security tab -> Advanced -> check "Run as Administrator" Windows UAC is a royal pain in the butt. Joe T. Quote Link to comment Share on other sites More sharing options...
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