Sorry it took a while. I was waiting for Fiio Japan to release Japan ROM version for Fiio X7ii first. It seems Fiio is releasing a lot of frequent updates lately and I hope it’s finally stable now.
I recommend to flash official global ROM (1.0.9) or Japan ROM (1.1.1 JP) before flashing Purist ROM version to make sure you get the same partition alignment. Cross flashing will make device unbootable and may corrupt device’s data.
-Based on firmware version 1.0.9 / 1.1.1 JP
-Fiio Music app is updated with Fidelizer optimizations
-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 X7ii Purist ROM | Fiio X7ii Purist ROM (JP version)
Installation Guide
1. Download X7ii Firmware Upgrade Tool
2. Turn off Fiio X7ii
3. Connect X7ii 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 X7II(Chinese text).exe and press the green button in middle right flash the ROM
For Mac / Linux users, please check this guide for flashing Fidelizer Purist ROM on Mac / Linux instructions.
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 Fidelizer Mod project with 3 modification levels. Happy listening. 🙂