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

 

I was going to wait for official release from iBasso global page first but tomorrow I may visit my parents so I decided to release DX220 Purist ROM update based on China’s release which should be the same. 🙂

 

-Based on iBasso DX220 firmware version V1.18.284
-PerfectDynamics 3.0 Sound Optimizations applied
-Google Play Store added
-Apollo – Fidelity Edition from https://forum.xda-developers.com/android/apps-games/apollo-music-player-fidelity-edition-t3038629 included
-MangoPlayer app has optimizations applied
-build.prop tweaks for better video and storage performance and improve battery life
-Audio engine optimized for only audio playback (EQ/Gaplass features work)

 

Download: iBasso DX220 Purist ROM

 

Installation Guide

1. Install Rockchip USB driver included in iBasso DX220Max Upgrade Tool and make sure it shows ‘Found One ADB device’ in AndroidTool software
2. Extract OTA ROM from Official Oreo ROM firmware to DX220’s internal storage and flash from Settings > System > Updater > Local storage
3. After successfully flashing official ROM, go to Settings > System > About tablet and tap “Build number” for 7 times to enable “Developer options”
4. Tap back arrow to enter “Developer options”, enable “USB debugging”, and press OK
5. Connect DX220 to computer with USB connection in Android mode again and press OK to allow USB debugging
6. Download Disable Verity package and run disable_verity.bat file to disable verity and restart (Authorize USB debugging on device and run again)
7. After DX220 boots up properly with Verity disabled, run reset_loader.bat file so you can enter loader mode
8. Open AndroidTool, click on “Upgrade Firmware” tab, click on Firmware button and select update.img extracted from Purist ROM then click Upgrade

 

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.

 

I’m sorry for very long delay since the last PerfectDynamics 3.0 update. I was so busy with arranging Nimitra and Nikola Classic series and product manufacturing and delivery. Here’s iBasso DX120 Purist ROM with PerfectDynamics 3.0. 🙂

-Based on firmware version 2.9.121
-PerfectDynamics 3.0 Sound Optimizations applied
-build.prop tweaks for better video and storage performance and improve battery life
-Audio engine optimized for only audio playback (EQ/Gaplass features work)

 

Download: iBasso DX120 Purist ROM

 

Installation Guide

1. Download iBasso FactoryTool with English UI
2. Turn off DX120
3. Connect DX120 with USB connection to computer while holding vol up button
4. Install Rockchip USB driver included in FactoryTool
5. Open FactoryTool.exe and flash ROM according to instructions provided in DX200 batch tool instruction.doc

 

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 projects with up to 3 modification levels.