Arduino Clone Debug: Why Your $3 Board Wont Upload Code

Why Your Arduino Clone Wont Upload

The most common reason an Arduino clone fails to upload is power-related, not software-related.

The Quick Check

Before you troubleshoot anything else, check:

1. Is the USB cable charge-only? (Some cheap cables have no data lines)
2. Is the voltage regulator dead? (Check with a multimeter)
3. Are you using the correct COM port?

Get the Full Debug Kit

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Includes: 7-phase checklist, wiring errors guide, and common errors quick reference.