First of all, thank you very much for being so busy and being able to reply to my question of being so mentally challenged. Haha I have tested and found that there may have been some issues with my PCB production, and I have also identified the cause. As shown in Figure 1,[cid:image002.jpg@01D993BA.F5F9A8C0] Through this flywire, I successfully flushed in the required firmware program. Both lights are on, which makes me very excited.[cid:image005.jpg@01D993BA.F5F9A8C0] I linked the firmware and installed the dfu driver under Windows, but the result showed this[cid:image007.png@01D993B3.AA7A4870] I have tried several dfu drivers, and there is a yellow exclamation mark below this icon! At this point, I saw that there was a simtrace in the USB device on my vmbox. I don't know if this is considered a success. I can only continue to try.[cid:image010.jpg@01D993BA.F5F9A8C0] [cid:image011.png@01D993B4.AAF416E0] Can find the current device. I entered the osmo remsim client st2 command according to the user manual I have carefully read the manual, but I am still confused as to which part I should start with. Can you give me a simple idea? Do I first set up the card reader section, then the server section, and finally the simtrace2 section?[cid:image012.png@01D993BA.F5581190] 从 Windows 版邮件<https://go.microsoft.com/fwlink/?LinkId=550986>发送