Apple is publishing a slew of support documents today corresponding with the launch of iPhone Duo, as it does for every iPhone launch. The support documents cover Touch on iPhone Duo, troubleshooting hinge issues, and much more.

In one support document , Apple outlines what to do if you’re having any of the following problems with the hinge on your iPhone Duo:

Device won’t open or close completely

Unexpected noise while opening or closing the device

Loose hinge

Bent or broken hinge

Enclosure damage that affects hinge operation

Apple also has a support document outlining the software accommodations for using a case on iPhone Duo that partially covers the left edge of the outer display:

After applying iPhone Duo Case, a message appears on the display of iPhone Duo with the option to adjust the screen size to accommodate for the case. Follow the onscreen instructions to make the changes.

You can adjust the screen at any time: open Settings and tap Display & Brightness. Turn on Shift Left Edge.…