For new users, please read about PerfectDynamics 2.0 Sound Optimizations first for new improvements with Fidelizer ROMs.
After launching an update with new MangoPlayer app from iBasso DX220, some who use 3rd-party apps told me they want DX220 ROM port if possible so I decided to port the whole ROM instead. Mango OS is still DX200 version because DX200’s display isn’t compatible.
-Based on iBasso DX220 firmware version Oreo 8.1 V1.09.092
–Yalp Store is added as Play Store’s alternative (I still keep Google services for those who want to install Play Store through other means)
-Apollo – Fidelity Edition from https://forum.xda-developers.com/android/apps-games/apollo-music-player-fidelity-edition-t3038629 included
-Revamped MangoPlayer UI with improved user experience
-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 DX200 Purist ROM
Installation Guide
1. Turn off DX200
2. Connect DX200 with USB connection to computer while holding play button switch
3. Install Rockchip USB driver included in AndroidTool
4. Flash latest Official Oreo ROM firmware from iBasso website
5. After successfully flashing official ROM, go to Settings > System > About tablet and tap “Build number” for 7 times to enable “Developer options”
6. Tap back arrow to enter “Developer options”, enable “USB debugging”, and press OK
7. Connect DX200 to computer with USB connection in Android mode again and press OK to allow USB debugging
8. Download Disable Verity package and run disable_verity.bat file
9. After DX200 boots up properly with Verity disabled, turn off device and connect with USB connection to computer while holding play button
10. Open AndroidTool, click on “Upgrade Firmware” tab, click on Firmware button and select update.img extracted from Purist ROM then click Upgrade button
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 iBasso DX200 Fidelizer Mod project with 3 modification levels and happy listening. 🙂