Leaked iPhone 18 Pro Documents Reveal Split Modem Strategy and New Camera Sensor

The massive 630GB data breach at Tata Electronics continues to yield highly sensitive information regarding Apple's unreleased hardware. Stolen documents from the cyberattack have exposed plans for a split modem strategy, new camera components, and a new packaging approach for the A20 Pro chip. The leaked files suggest Apple is preparing different cellular hardware for different regions while adopting a new packaging method for its next-generation processor.



Apple will apparently rely on Qualcomm hardware for iPhone 18 Pro models sold in the United States, where mmWave support remains a requirement. A review of the files by AppleInsider found that the bill of materials for the US variant lists several Qualcomm components, including the SDX80M and SDR875. Apple's current in-house modem designs do not support mmWave, so documentation suggests international iPhone 18 Pro models will instead use Apple's proprietary C2 modem.


Supporting that regional approach, schematics outline two distinct logic board configurations. Part number 820-04340-06 corresponds to the US board with a mmWave connector, while 820-04305-06 identifies the international version. Prototype documentation also suggests Apple may be preparing to bring eSIM support to mainland China, replacing the dual physical SIM configuration traditionally offered there.

Beyond the modem changes, the Tata files corroborate recent motherboard leaks detailing a packaging overhaul for the A20 Pro chip. Apple is shifting from its traditional Integrated Fan-Out Package-on-Package method to a Wafer-Level Multi-Chip Module design. This places the application processor and memory side-by-side rather than stacking them directly on top of one another. The arrangement could give Apple greater flexibility to mix and match separate CPU, GPU, and Neural Engine dies. Schematics also show the system-on-chip moving closer to the outer edge of the dual-layer board, with storage components tucked deeper between the layers.

Diagnostic data also points to a rear camera upgrade. Comparisons between the current model and the upcoming iteration show the wide camera sensor changing from the Sony IMX-903 to an unreleased IMX-905. The apparent Sony sensor upgrade aligns with reports that Apple is bringing a variable aperture camera system to the iPhone 18 Pro. A variable aperture would allow the lens to physically adjust the amount of incoming light and depth of field, reducing reliance on computational photography.

Although the leaked documents reveal extensive technical details, they describe prototype hardware at various stages of development, and Apple could still revise features before the iPhone 18 Pro reaches production.


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