I received inquiries about firmware flashing issues on Mac so I looked into it and added some instructions for MacOS. 🙂
iBasso DX150 Purist ROM version 2.11.293 released!

DX150 Firmware version 2.1.293 was released on 1st September 2018 and now Fidelizer Purist ROM version is here. This time I also tested with real device to make sure everything works fine before releasing.
Last version had strange issues and I had to buy real device to test and fix it despite having only few customers but it’s my responsibility to make sure to resolve the case promptly so please consider upgrading if you like free version.
-Based on firmware version 2.11.293
-Play Store added
-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)
-Bundled audio effects removed but keep main engine (Poweramp works now)
Download: iBasso DX150 Purist ROM
Installation Guide
1. Download Factory Tool provided by Paul http://www.ibasso.com/uploadfiles/download/FactoryTool_v1.39_DX200.zip
2. Turn off DX150
3. Connect DX150 with USB connection to computer while holding play button switch
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
Optional (If your DX150 still has performance issues)
1. Flash factory image version 2.9.250 with FactoryTool
2. Scan music and confirm it works fine
3. Flash Fidelizer Purist ROM with FactoryTool again
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 project with 3 modification levels. Happy listening. 🙂
Added testimonial from Michael Sadighpour
Here’s another feedback today. He sent me his impressions from time to time but version 8.2 update makes significant improvements again and again.
Hello, what did you guys do in version 8.2 pro? It took my PC to a whole new level in fidelity. Thank you!
Mike
If you’re still using older version of Fidelizer, I hope reading Fidelizer 8 feedback will help you deciding to upgrade for better sound. 🙂
Added testimonial from Suruj
Here’s a new feedback today. It seems Fidelizer 8 impressed him enough to consider Nimitra (and NimitraS now by the time I posted this) for future upgrades.
Hi,
Fidelizer 8 is working without any problems and the sound is impressive. I have read the reviews on Nimitra and will contact you later in the year about purchasing a unit.
Suruj
Now that NimitraS with firmware 3.0 update is now out, I hope this will a good opportunity for him to consider upgrading. 🙂
Fidelizer Nimitra Firmware 3.0 Update and purchase offers for 3,200th license

And now we reached 3,200th milestone. As a reminder to inform customers that they receive refund for returning customer purchase, I’m running purchase offer again in this week. I also sent partial refund back for customer who placed an order on 2nd September 2018.
Fidelizer Plus: US $39.95 —> $34.95 (Expired)
Fidelizer Pro: US $69.95 —> $59.95 (Expired)
This offer will last until 2nd September 2018. Discount rate is the same as purchasing Fidelizer software again so new customer and returning customer will get the same price. You may order again anytime and receive partial-refund as discount later after this campaign is over.
I also finished a new firmware update for Nimitra/NimitraS Computer Audio Server. Firmware 3.0 comes with changes and adjustments through the year with the following updates:
-Added JRiver integration support with Nimitra optimizations
-Added MinimServer integration support
-Added sound notification whenever connection is established
-Fixed JRiver library update not removing removed files
-Fixed Windows 10 forcing Windows Update through hidden protocols
-Improved Asset uPNP database re-initialization compatibility
-Improved over all sound quality optimizations and 64-bit audio performance
-Upgraded HQPlayer NAA software and compatibility with both x86/x64
Nimitra will receive significant sound quality improvement tuned specially for Nimitra device after Fidelizer 8 release. This optimization is completely separated from Fidelizer 8 optimizations making 64-bit version sounding better too.
Nimitra also handled the case of some USB DAC using its own power supply and when Nimitra can’t recognize audio output after turning on before DAC. Whenever audio output is recognized, Nimitra will re-initialize audio services and notify to fix this case for JPLAY.
After offering JRiver option in Nimitra, I started working on JRiver integration with auto library update similar to Asset uPNP. All drives will be scanned in JRiver also with Fidelizer optimizations in JRiver software including Fidelizer WebRemote UI.
For customers preferring MinimServer with JPLAY for DSD128 support, Nimitra also support MinimServer as part of Nimitra platform now including library auto update feature.
Some customers may see Windows 10 being pushed with Windows Update since last year. It took me a long while to completely disable Windows Update enforcement in Nimitra. If you accidently updated Windows 10 platform before, you can rollback and apply this update to disable Windows Update enforcement.
Nimitra/NimitraS customers can send request for firmware update and I’ll update Nimitra firmware through Teamviewer or request download link for applying update manually. If you already upgraded Windows 10 and can’t rollback, you can Nimitra back for reinstallation or possibly NimitraS upgrade too.
I hope this will be good chance for you to consider upgrading Fidelizer software and happy listening. 🙂
Keetakawee Punpeng