This is a known issue for Australian users on EU firmware versions. The app detects a newer version available on Hikvision's servers, but the automatic update fails because the region is mismatched.
For the most up-to-date and tailored firmware advice in Australia, consult your original installer or a local authorized Hikvision dealer to ensure compatibility with your specific regional configuration. ds7616nii2 16p firmware australia
Go to > System > Maintenance > Upgrade & Maintenance . This is a known issue for Australian users