If the app is not working
Does the mobile phone meet the minimum OS requirements?
For Android devices, Android 6 or higher is required.
For Apple devices, iOS 12 or higher is required.
Does the mobile phone have a trusted execution environment?
Your mobile phone needs a secure Trusted Execution Environment (TEE) for the Nevis Mobile Authentication SDK to work. Some smart devices do not have a TEE required for cryptographic calculations and storage as part of a secure authentication process, such as Google Pixel 1, Nexus 5, Mate 9, Galaxy A5, and the iPod Touch.
Does the mobile phone have lock-screen set up?
Without a lock on the device, security is compromised. The device requires at least a PIN to unlock the home screen. Although the Nevis Mobile Authentication SDK also works with PIN code only, for a safer and more convenient user experience, facial pattern recognition or fingerprint scanning is needed to be set up on the device.