Check the official website of the original design manufacturer. Look for a “Support” or “Downloads” section. Search for “CVD1810WJ” or its project codename. You may need to register an account and provide a serial number.
If you want, I can:
Which next step do you want?
However, “cvd1810wj” is not a widely recognized public model number from major brands (e.g., Hikvision, Dahua, Reolink, Yi, etc.). It may be:
Firmware Design, Implementation, and Security Analysis for the CVD1810WJ SoC cvd1810wj firmware
Downgrading is not officially supported. To force downgrade, use the serial console (UART) and tftp the older .bin directly to NAND.
Would you like help identifying the chipset or brand by uploading a photo of the device or its PCB?
Rename if required:
Power off the CVD1810WJ – disconnect all cables, including the power adapter. Check the official website of the original design
Insert the prepared SD card into the device’s card slot.
Initiate recovery mode:
Wait for completion:
Remove the SD card and power cycle the device normally. Which next step do you want
If the device will not even enter recovery mode, you may need to interrupt the bootloader via UART:
(Only attempt this if you have the exact memory addresses from the manufacturer.)
Never flash a random firmware file without checking your current version. Mismatching firmware can permanently "brick" the device.