17-Year-Old HTC HD2 Finally Runs iOS 7 via XNU Kernel Port

The HTC HD2: A Modding Legend

The HTC HD2, released in 2009, has achieved near-mythical status in the mobile modding community. Originally shipping with Windows Mobile 6.5, its relatively open bootloader and active developer community turned it into a platform for porting virtually every mobile operating system of the era.

Hardware Specifications

Processor: Qualcomm QSD8250 single-core, 1 GHz

Display: 4.3-inch (considered massive at the time)

RAM: 576 MB physical memory

Historical OS Ports

Over more than a decade, enthusiasts successfully booted the following systems on the HD2:

Android (multiple versions)

Windows Phone 7, 7.5, 7.8, and even Windows Phone 8

MeeGo

Ubuntu Touch

Firefox OS

Windows RT (ARM version)

Symbian

As the article notes, usability was often secondary; simply reaching a desktop or showing a start menu was cause for celebration on forums like XDA Developers.

iOS 7 Port via XNU Kernel

In 2024, developer j0sh1x demonstrated iOS 7.1.2 running on the HD2. The port targets the iPhone 4 firmware and uses a direct port of Apple's XNU kernel — not an Android theme or emulator. Photos show the classic iOS 7 flat icons, Dock, lock screen, Settings, and "About" screen (reporting iOS 7.1.2). Touchscreen input works, but the system is described as extremely slow and far from daily-driver ready.

This follows a 2013 milestone where the Nokia N900 booted the XNU kernel without a graphical environment.

Contrast: Modern Bootloader Lockdown

The article contrasts the HD2's openness with today's increasingly restricted devices:

Xiaomi (HyperOS): Requires meeting eligibility criteria and applying via official community for bootloader unlock.

OnePlus (ColorOS 16+): Added 60-day account age, real-name facial verification, and device-count limits for deep-testing unlock.

Samsung (One UI 8): Removed OEM unlock toggle on some international models that previously allowed it.

Manufacturers justify this with security: locked bootloaders combined with Android Verified Boot prevent unauthorized system loads, protecting banking apps, payment data, and personal information.

Philosophical Reflection

The author argues that while security and stability matter for mainstream users, the HD2's 17-year modding lifespan raises a question: once a device is end-of-life, out of warranty, and no longer supported by the vendor, should the owner retain the right to unlock and modify it? The HD2 demonstrates that hardware value need not be dictated solely by the manufacturer.

Sources

Data and images sourced from Reddit, X (formerly Twitter), OnePlus Community, and Android Authority.