Before going to the dealer, check this first ... http://osxdaily.com/2018/11/21/unlock-iphone-to-use-usb-accessories-message/
Type: Posts; User: slypx
Before going to the dealer, check this first ... http://osxdaily.com/2018/11/21/unlock-iphone-to-use-usb-accessories-message/
Tried with a flat cable and I am able to close the lid - one of these...