Face ID might finally fold back into the picture.

Apple

The iPhone Duo reviews are out, and Apple’s foldable phone has earned plenty of praise for its polished hardware.

However, experts have also criticized the loss of Face ID, since Apple switched to a Touch ID fingerprint sensor embedded in the side button . But Apple appears to be working on fixing the problem for the next-gen iPhone Duo.

Apple

Why did Apple replace Face ID on the iPhone Duo?

According to Bloomberg’s Mark Gurman, Apple is testing iPhone Duo 2 units with an under-display Face ID module. Of course, it’s not certain Apple will make the switch, but there’s a strong chance it will, given rumors of an all-screen makeover for the 20th-anniversary iPhone, which is also expected to get an under-display Face ID module next year.

“Here’s what I have heard. Apple is already looking at a few different features for the iPhone Duo 2 and the iPhone Duo 3.…