DH_IPC-HX2X3X-Rhea_MultiLang_PN_Stream2_V2.800.0000018.0.R.210707 2021-07-15

Remember, only update firmware if you feel it may fix an ongoing issue with your cam.
There is always the risk of bricking the camera. Update firmware at your own risk.

Best Practices
1-Reboot cam
2-Reset to factory defaults
3-Update firmware
4-Reset to factory defaults once again
5-Set up from scratch, do not import saved settings.
6-After upgrade and resets, IP address will be