For new users, please read about PerfectDynamics 2.0 Sound Optimizations first for new improvements with Fidelizer ROMs.
After releasing DX150 Oreo ROM update in previous post, I started working on DX200 ROM update right after. It seems boot image in DX200 had some stability issues with modification so it took a while to fix it. Please always flash official version before Purist one.
-Based on firmware version Oreo 8.1 V1.05.036
–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 update tool
4. Flash Official Oreo ROM firmware from iBasso with instructions provided
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, you can flash Purist ROM with AndroidTool again
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. 🙂