Nokia Lumia 520 Custom Rom < 2026 >

: While the 520 wasn't officially supported for the full Windows 10 Mobile rollout due to its 512MB of RAM, custom "Interop" ROMs allow you to force-upgrade to later builds.

In the twilight of the Windows era, some developers attempted to port the Android subsystem to Windows Phone. This is highly experimental and unstable on a Lumia 520. It allows running Android APKs natively, but the performance on the 520's 512MB RAM is abysmal. This is recommended only for those who want to experiment, not for a daily driver. Nokia Lumia 520 Custom Rom

Custom ROM performance is heavily bottlenecked by the 2013-era hardware: : With only : While the 520 wasn't officially supported for

While the device was never intended to run anything but Windows Phone, tools like Windows Phone Internals It allows running Android APKs natively, but the

If you are looking to modify your Lumia 520, you are essentially looking for modified versions of the official Nokia firmware. These modifications usually unlock features restricted by Microsoft or carriers.

Most users look for custom ROMs to either update to a newer version of Windows or jump ship to Android entirely.

Most development for this device (codenamed "fame") is hosted on platforms like XDA-Developers .