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Openai/692da612-aac4-800b-80dd-f1568632e2ff
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==== - Try the UNO on another PC — if it uploads there, the problem is on your Windows machine. ==== * If you have another UNO, try uploading to that board to isolate the hardware. ===== - After trying steps above, tell me the first step that changed behavior (e.g., “Process Explorer showed python.exe holding COM6 and killing it fixed upload”, or “Loopback test failed”, or “No change after all steps”). ===== * If Device Manager shows the device name under Ports, paste the exact text shown (e.g., Arduino Uno (COM6) or USB-SERIAL CH340 (COM6)). If you want, I can give step-by-step for Process Explorer or driver reinstall with exact clicks — tell me which one you want and I’ll write the exact steps.
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