It is crucial to understand that the Nokia Lumia 520 has only 512MB of RAM and a dual-core processor.
Before starting any custom ROM work, you must have the following tools installed on your PC: WP Internals (Windows Phone Internals) : The core tool created by HeathcliffXDA used to unlock the bootloader and enable Root Access. LumiaFirmware.com : A repository to download the specific FFU (Flash File Unit) Emergency HEX/MBN files nokia lumia 520 custom rom work
Developers create a custom .ffu file—a complete system image based on Windows 10 Mobile build 15254 (the final "Fall Creators Update"). This image has all drivers from the Lumia 520 manually ported from the 8.1 driver set. It is crucial to understand that the Nokia