For new users, please read about PerfectDynamics 3.0 Sound Optimizations first for new improvements with Fidelizer ROMs.

 

It’s been a long while since last update of Fiio X series and I haven’t finished rolling PerfectDynamics 3.0 yet due to finalizing the improvements on legacy devices. There’s stability and sound signature to be addressed.

Finally I managed to replicate similar improvements on Oreo ROM with octa core. I tuned background tasks running on FIFO similar to R2R design and that can provide more linear sound and transparency with right tuning.

I also improved deodexing and re-basing ROM again from scratch to make sure it will be glitchless and updated Fiio Music with latest version V3.0.3 with new custom kernel from jkbuha. I’ll roll new updates for X7 and X7ii later soon.

 

-Based on firmware version 1.2.5
-De-odexed for better ART runtime optimizations
-PerfectDynamics 3.0 Sound Optimizations applied
-Kernel is replaced with jkbuha’s custom kernel
-Fiio Music app V3.0.3 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 X5iii Purist ROM

 

Installation Guide

1. Download X5iii Firmware Upgrade Tool
2. Turn off Fiio X5iii
3. Connect X5iii 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 X5III Firmware Upgrade Tool.exe and flash ROM according to instructions provided in Instructions of How to Use the X5 3rd gen Firwmare Upgrade Tool.pdf

 

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

 

If you like improvements in Purist ROM, you may upgrade to Enhanced / Advanced ROM for even better sound. Please read Portable Products for more details including Fidelizer Mod project with 3 modification levels and happy listening. 🙂

 

 

For new users, please read about PerfectDynamics 3.0 Sound Optimizations first for new improvements with Fidelizer ROMs.

 

The second device receiving PerfectDynamics 3.0 Sound Optimizations is out today. It couldn’t be other than the first and most famous device Fiio X5iii. It took a while to implement new optimizations in older devices platform. 🙂

 

-Based on firmware version 1.2.5
-De-odexed for better ART runtime optimizations
-PerfectDynamics 3.0 Sound Optimizations applied
-Fiio Music app version 1.2.0 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 X5iii Purist ROM

 

Installation Guide

1. Download X5iii Firmware Upgrade Tool
2. Turn off Fiio X5iii
3. Connect X5iii 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 X5III Firmware Upgrade Tool.exe and flash ROM according to instructions provided in Instructions of How to Use the X5 3rd gen Firwmare Upgrade Tool.pdf

 

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

 

If you like improvements in Purist ROM, you may upgrade to Enhanced / Advanced ROM for even better sound. Please read Portable Products for more details including Fidelizer Mod project with 3 modification levels and happy listening. 🙂

 

 

Hi. Sorry it took a while. There were issues on previous X7 ROM so I needed to fix that first and restarted X5iii ROM updates to make sure it’ll be fine. 🙂

 

-Based on firmware version 1.2.5
-Fiio Music app 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 X5iii Purist ROM

 

Installation Guide

1. Download X5iii Firmware Upgrade Tool
2. Turn off Fiio X5iii
3. Connect X5iii 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 X5III Firmware Upgrade Tool.exe and flash ROM according to instructions provided in Instructions of How to Use the X5 3rd gen 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 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. 🙂

 

 

After releasing Fiio X7ii ROM on another day, here’s another release for the most popular Fiio X5iii device. I’m modding Fiio X7 with Fidelizer Mod Ultimate so next X7 update will be released soon. Enjoy. 🙂

 

-Based on firmware version 1.2.4
-Fiio Music app 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 X5iii Purist ROM

 

Installation Guide

1. Download X5iii Firmware Upgrade Tool
2. Turn off Fiio X5iii
3. Connect X5iii 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 X5III Firmware Upgrade Tool.exe and flash ROM according to instructions provided in Instructions of How to Use the X5 3rd gen 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 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. 🙂