For new users, please read about PerfectDynamics Sound Optimizations first for new improvements with Fidelizer ROMs.

 

After successful launch of Fidelizer ROM updates with PerfectDynamics Sound Optimizations on iBasso DX200 and Fiio X5iii/X7ii devices. Now it’s time for former flagship Fiio X7 device to receive this amazing update with ROM version 3.3.2. 🙂

-Based on firmware version 3.3.2
-Deodexed
-Apollo – Fidelity Edition from https://forum.xda-developers.com/android/apps-games/apollo-music-player-fidelity-edition-t3038629 included
-build.prop tweaks for better video and storage performance and improve battery life
-bundled audio effects removed but keep main engine (Poweramp works now)

Download: Fiio X7 Purist ROM

 

For Fidelizer Enhanced / Advanced ROM users, you’ll also receive the following improvements with new update as below:

-Added PerfectDynamics Sound Optimizations for more accurate sound reproduction
-Disabled Kernel Same-page Merging feature
-Fixed playback instability with high capacity micro SD cards
-Optimized I/O priority for better stability

 

Installation Guide

1. Download Factory Tool provided by Devin http://www.mediafire.com/file/0yztdw6qdpwwp9a/X5III+Firmware+Upgrade+Tool+with+FW1.1.1.zip
2. Turn off Fiio X7
3. Connect X7 with USB connection to computer while holding previous track button
4. Install RK USB driver included in Firmware Upgrade Tool and replace update.img image with mine.
5. Open X7 Firmware Upgrade Tool.exe and flash ROM according to instructions provided in Instructions of How to Use the X7 Firwmare Upgrade Tool.pdf

 

There’s a lot of improvements for Advanced ROM and I also added Enhanced ROM into collection too. Please read Portable Products for more details including Fiio X5iii Fidelizer Mod project with 3 modification levels. Happy listening. 🙂