New Delhi, Oct. 28 -- Apple is directing iPhone Duo owners with an inner-display problem to AppleCare for replacements after acknowledging that some of its new foldable phones are affected. The company issued its response on October 26, three days after the device went on sale.

Reports describe cracks, bright lines and dead pixels near the folding display's crease after limited use. Engadget reported the complaints and received Apple's statement directly. Apple characterized the affected population as a small number of units, but did not publish a count or a failure rate.

The phone launched October 23 at a US starting price of $1,999, following the iPhone Duo preorder opening a week earlier. Its folding inner display is central to the p...