The US Federal Communications Commission had admitted a significant blunder after it briefly published 163 pages of confidential schematics for Apple’s iPhone 16e.

The files, labelled “Apple Proprietary and Confidential,” were uploaded over the weekend to the FCC’s equipment authorisation database.

They included block diagrams, antenna placements, and board-level layouts, which are normally shielded from public view.

Apple’s accompanying cover letter had explicitly requested that the documents remain sealed, warning disclosure could give rivals an “unfair advantage” even after the phone’s release.

A little more information is known about the iPhone 16e than Apple would like

The leak effectively removed much of the guesswork that comes with reverse-engineering an iPhone, offering a detailed look at Apple’s own engineering diagrams.

The iPhone 16e is Apple’s latest entry-level model, and the filings appear to reveal several internal innovations not highlighted in Apple’s launch materials.

The FCC quickly removed the files once the error was identified, but mirrored versions have already begun circulating online. Neither Apple nor the regulator has commented publicly.

While independent repair advocates and security researchers argue that the schematics could aid in diagnostics and hardware analysis, the slip-up is clearly a setback for Apple’s tightly controlled secrecy machine.

The iPhone 16e has been on sale globally since 28 February 2025.

The recent leak is significant because Apple’s board-level schematics reveal details that go far beyond what competitors, repairers, or security researchers could glean by disassembling a retail unit.