To have a secure Zengo account, you need a complete recovery kit which needs to be performed with a selfie biometrics scan locally done on your phone and using the selfie camera. So if your camera is broken, you will not be able to have an account there and you can use another phone that has a working selfie camera. You do not need to have a phone with Face ID or equivalent as only a simple selfie camera is required.
What if i already have a Zengo account set up?
If you have an account already set up and backed up, your funds are protected in the Zengo wallet. But unfortunately, you cannot recover (or create a Recovery Kit for) your wallet without a working selfie camera. Recovery on Zengo uses ZoOm Biometric Security and relies on your phone's selfie camera.
If your camera breaks after you have backed up your funds, your funds are perfectly safe.
If the sensors required for Apple’s Face ID are also broken you can use Zengo instead with the passcode to make transactions. You can continue to transact with Zengo until you either repair your camera or restore your account on a different, fully working phone.