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There are two primary ways to update the firmware on the Canon imageRUNNER 2425: via the Remote UI (Web Browser) or using a dedicated USB flash drive. Method 1: Using the Remote UI (Recommended)
: This happens if you downloaded firmware meant for a different model or region. Double-check your exact model name (iR 2425 vs. iR 2425i) and ensure you are using the correct regional site. canon ir 2425 firmware download link