42212tni

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...

greetings, after the BI 4.8.2.0 x64 update, i lost control of the ptz arrows, home button, focus and zoom on my dahua 42212TNI. the presets still work. same issue in the web UI. i was using the amcrest/dahua ptz profile with no issues up until now. i tried other ptz profiles related to dahua...