iBasso DX200 Oreo official stable ROM is released today. It sounds better with improved focus and lots of bugs resolved. I’m very happy to see Bluetooth DAC/AMP feature being added back in this Oreo ROM so I can stream from my mobile phone directly.
-Based on firmware version Oreo 8.1 V1.01.006
–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 | XMOS Firmware 1.2 Update
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 in update tool
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 again
PerfectDynamics Sound Optimizations 2.0
Aside from being the first stable Oreo ROM in market, DX200 is also the first device to receive PerfectDynamics Sound Optimizations 2.0 update. I was working on a new breakthrough in Nimitra firmware 3.0 update so I decided to release PerfectDynamics 2.0 later with new improvements as below.
System stability improvements
Back in older days, system optimizations started from raising priority, reducing buffer and other optimizations that can deliver better purist performance. With new changes in this release, it also improve system stability too.
Sound optimizations re-calibrated based on Nimitra firmware 3.0 update
I re-calibrated PerfectDynamics optimizations again to deliver real sound performance like no Linux audiophile server could ever archive before based on Nimitra firmware 3.0 update. You can feel uncompressed dynamics improving micro details and imaging with great musicality and liquidity.
Fidelizer’s Core Isolation optimizations on Linux-based platform
The first PerfectDynamics ROM was released in October 2017 before Fidelizer 8. After releasing Fidelizer 8, I tried to implement its core isolation principles to Purist ROM and this is the first ROM with Fidelizer’s core isolation applied.
With Fidelizer’s core isolation optimizations applied in Purist ROM, the result was truly magical. It sounds like all instruments used to perform in small room and now they’re performing in great hall that each instrument can have its own optimal space.
PerfectDynamics 2.0 features are exclusively available for Fidelizer Enhanced / Advanced ROM only. Free Purist ROM version has only generic optimizations that can safely apply to all devices so it won’t have PerfectDynamics Sound Optimizations.
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. 🙂
