If you can't access Person only mode, it's likely that your devices do not match the requirements to use Person only.
Please check the following requirements chart to make sure your app, OS, and Camera version are up to date. Check your CPU, OpenGL-ES, and Chipset to be sure as well.
|App Version||4.2.0+||2.0.0+||Update Alfred app|
|OS Version||Android 5.0+||iOS 9+||Update OS version (iOS)|
|Camera Version||2.0||X||Switch to Camera v2.0|
|OpenGL-ES||3.0+||X||Check my device's OpenGL-ES version|
|Chipset||non-Intel||X||Check my device's chipset|
(Devices not supported for Person Detection: iPhone 4s)
Still have questions? Let us know on the feedback form