I’m sorry to keep X7 users waiting for so long. Now the wait is over. I’m glad to be able to deliver all Fidelizer Purist ROM updates now. 🙂

-Based on official Fiio X7 3.3.4 ROM
-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

 

Installation Guide

1. Download X7 Firmware Upgrade Tool from Fiio website http://x7pack.fiio.net/X7_Firmware_Upgrade_Tool_with_FW3.3.0.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 Fidelizer Purist ROM version.
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”

For Mac / Linux users, please check this guide for flashing Fidelizer Purist ROM on Mac / Linux instructions.

 

There’s a lot of improvements for Enhanced / Advanced ROM with PerfectDynamics Sound Optimizations. Please also check Portable Products for more details about ROM upgrades and hardware modification.