get firmware that originally came with camera?

1

1.21 jiggawatts!

Getting the hang of it
Aug 29, 2018
190
37
toronto canada
how can i get the firmware that originally came with camera? i'd like to go back to see if some issues can be resolved.

the model is 42212TNI

firmware i'm looking for:
System Version 2.622.0000000.5.R.R4.1217.3S.NR, Build Date: 2018-02-07
WEB Version 3.2.1.548909
ONVIF Version 16.12(V2.4.1.513183)


2MP 12x PTZ – Dahua North America




 
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