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Upgrade Firmware

Boot mode description Upgrade the firmware via USB cable MaskRom mode Upgrade the firmware via SD card Instructions for writing with USB cable (important)

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Document Center/Products/System on modules/Core-3399-JD4/Upgrade Firmware

Last Updated: 2026-07-14 14:12:17

Upgrade Firmware

Boot mode description

Upgrade the firmware via USB cable

MaskRom mode

Upgrade the firmware via SD card

Instructions for writing with USB cable (important)

Serial debug

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