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- Apple launched the iPhone 15 and iPhone 15 Pro at its "Wonderlust" event last week.
- The phones lack a silicon chip the company developed for years, the WSJ reported.
- Various obstacles hampered the chip's development, the publication reported.
Apple may have unveiled the new iPhone 15 but the phones are reportedly missing a silicon chip the company spent years developing.
The Wall Street Journal reported that Apple spent billions of dollars trying to develop the chips in time for the phone's rollout, but was delayed by obstacles mainly of its own making.