Ensure it specifically says DVR5608LN to avoid "bricking" the device with the wrong software. Step 2: Where to Download the Firmware
By keeping your current, you ensure your surveillance system remains a reliable shield for your home or business. dvr5608ln firmware update
If you can't find it online, contact the company you purchased the unit from. They can often email you the specific .bin file. Ensure it specifically says DVR5608LN to avoid "bricking"
Newer updates often allow the system to support larger capacity hard drives. dvr5608ln firmware update