The 512MB RAM causes severe performance bottlenecks. You will experience frequent "Resuming..." screens, sluggish app launches, and multitasking is virtually non-existent. Furthermore, because Microsoft has since discontinued Windows 10 Mobile support as well, app availability remains incredibly limited. Option 2: Flashing Android (Project Astoria & Native Ports)
The critical breakthrough for custom ROMs on the Lumia 520 was the development of Windows Phone Internals (WPI) by developer Heathcliff74. This tool allows users to: Unlock the Bootloader
Developers have targeted the Lumia 520 (and its close relatives like the Lumia 521, 525, and 720) for years. The two main paths for custom software installation include Android and Windows 10 Mobile. 1. Android Ports (LineageOS / CyanogenMod) nokia lumia 520 custom rom work
Enthusiasts have bypassed this using "offline update" tools and registry hacks to install , which some users report runs "pretty nicely" for basic tasks. postmarketOS: Ongoing work exists to bring this Linux-based OS to the (codenamed "nokia-fame").
If you are interested in exploring this further, I can help you find: The 512MB RAM causes severe performance bottlenecks
To make any custom ROM work on a Nokia Lumia 520, developers rely on a specific ecosystem of utility software. You cannot simply plug the phone in and drop a file onto it; you must break through Microsoft's secure boot protection.
Android is not optimized for the 520's hardware, leading to fast battery depletion. Conclusion: Is It Worth It? Option 2: Flashing Android (Project Astoria & Native
Power and volume keys map correctly to the Android OS. What Does Not Work (The Caveats)