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

 

I received information about Fiio launching big update for Fiio X5ii, X7 and X7ii at the same time. As I’ve been busy with many projects including Fidelizer 8 updates so I can release only one at time and I’ll start with the most popular Fiio X5iii first. 🙂

After launching firmware updates for a while, I realized most customers are returning users so wiping data again won’t be necessary anymore. I also tuned PerfectDynamics on Enhanced / Advanced ROM to reduce bright sound with stock hardware on some headphones.

-Based on firmware version 1.2.0
-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 X5iii Purist ROM

 

Installation Guide

1. Download Firmware Upgrade Tool from https://www.dropbox.com/s/bxlfgb1coyzxrws/
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 ones from Fidelizer.
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 Fiio X5iii Fidelizer Mod project with 3 modification levels. Happy listening. 🙂

 

 

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

 

I received notification about Fiio X5iii 1.1.9 ROM update on the day it was released and I started working on it immediately. It took me few days to launch this update because of new feature Balanced Turbo for High Gain that requires further tests with hardware modded device.

After testing Purist ROMs for version 1.1.9, all ROMs passed the test including units with Fidelizer Mod applied. Balanced Turbo feature works wonderfully with new opamps set I implemented and I highly recommend to use with high gain headphones.

-Based on firmware version 1.1.9
-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 X5iii Purist ROM

 

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 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 mine.
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

 

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. 🙂

 

 

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

 

Before introducing PerfectDynamics update, I tested PerfectDynamics Sound Optimizations with iBasso DX200, Fiio X5iii and iBasso DX90 to confirm my theory. However, launching new ROM updates requires more testing and I found some issues to work on since last week.

When I left X5iii playing with repeat, I found it stopped playing after few tracks. I also added other optimizations for Fiio itself too so finding which tweaks caused this issue took me a lot longer than I expected and now it’s finally fixed and stable for whole night music.

-Based on firmware version 1.1.8
-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 X5iii 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
-Added second micro SD card slot support (experimental)
-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 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 mine.
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

 

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. 🙂