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The setting of COM Port in the boot menu can’t be saved.

Re:Firstly, please makesure the COM Portis used in the project, if it can’t be used all the setting of this COM Portis useless, so the setting can’t be saved.

     Secondly, if the COM Portis used in the project, please make sure, when you download this project,whether “Advanced configuration” is selected in download window.