AW: Most problems originate from not officially licensed by Apple cables. Therefore make sure that an original or officially licensed Apple Lightning cable Apple is used. Otherwise this trick can help:

iPhone off (power longer press and the slider to Off) – Disconnect Zenec device.

Now connect ==> Zenec switch on ==> iPhone is started and coupled. Stakeout – infected again. Then everything should function normally.

Make sure, the iOS version the iOS version of your Apple iPhone is up to date.