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EV2300 can't work

Hi,

I have two EV2300. One works well both under "bqEVSW" and "GaugeStudio" when connect to "BQ27541EVM". And when I open the "GaugeStudio",the "Gauge Dashboard" shows "EV2300 firmware 3.1r".

But the other one can't work neither under "bqEVSW" nor "GaugeStudio". When I connect this EV2300 to "BQ27541EVM", and open "bqEVSW",then "bqEVSW" reports "timeout". If I open "GaugeStudio",the "Gauge Dashboard" sometimes shows "None",sometimes shows "EV2300 firmware 3.0z". I also found message "Warning GaugeDashboard -> Getting Adapter Version:HID Input read error." by chance.

I want to know if this problem cased by the too old firmware version? How to solve it?

My OS is Win XP sp3.


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