Apple is facing significant engineering challenges during the testing phase of its first foldable iPhone. These technical hurdles could delay mass production and shipment schedules by several months.

Nikkei Asia reports that complexities involving the hinge mechanism and display durability are driving the setbacks. These issues stem from the foldable form factor rather than component shortages.

Apple has notified supply chain partners of potential changes to the production timeline. Engineers consider the period through early May critical for resolving these technical difficulties.