Apple Iphone Duo has a flawed hinge design that causes its screen to crack!

Some mobile phone repair shop had disassembled the cracked screen Duo and discovered that the hinge had broken off and caused the Samsung foldable screen to crack.  Therefore, Duo doesn't have a foldable screen problem but a flawed hinge design problem.

Why did Apple introduce its foldable phone so late?

This is because Apple has encountered problems bypassing many folding mechanism patents filed by Huawei, Xiaomi, Oppo, Vivo, Honour, Oppos, Samsung and etc.  In the end, Apple has produced a flawed hinge for its Iphone Duo.  Even though Apple is willing to replace the faulty hinge and cracked screen for free during the warranty period, this Duo foldable phone will continue to have the same existing problem due to its flawed hinge design.  It is a matter of time that the newly replaced hinge will break off again unless Apple changes the hinge design.

Do you still want to buy a problematic Iphone Duo and keep replacing the components?