If you want a professional alarm system go with Texecom Premier Elite and add the smartcom.
Ring alarm kits are at best basic,
Pyronix wireless kit eat batteries.
Honeywell Galaxy is now over 20yrs old and limited by design.
Well all good fun but not necessary really, forcing a firmware that doesn't go into the NVR or a Camera will partly brick the device this is done on purpose to corrupt the stored user details of the device.
All new IPC come with a reset button so this is only on older models.
Once you have...
recheck that you have pins 3 and 6 split correctly.
A cheap tester will show all cores are correct when they are not, you should be working to 568B standand.
Also check that the cameras rj45 socket pins are not bent up