Where i can get firmware patch for denon dn 4500 mk2

[Reese]

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Help update Firmware Dn D4500Mk2

Hi friends! I have 4 new Dn d4500MK2 units stored for a long time, I recently used them in an event and they failed to read the USB flash drive, where can I download the manual and firmware of the latest version available?. Denondj is not included in the support section. I appreciate the information, thank you…