| Brand | Official Source | Search Term | |--------|----------------|--------------| | | Annke Support | "Annke DVR5608LN firmware" | | H.View | Contact distributor or use generic HiSilicon firmware (risky) | "H.View DVR5608LN update" | | Generic OEM | Look for sticker on DVR motherboard – search the full PCB code (e.g., HI3536D V2.0 ) | |
Navigate to Setup > System > Upgrade .
Sometimes the new firmware introduces bugs. Downgrading is possible but risky. dvr5608ln firmware update