Android 8.1 for DX200 protects main partitions with Verity, which makes it tricky for end user to flash custom firmware. Magisk allows developers to alter system systemless-ly, i.e. without any direct modification of the protected parts of the firmware image. That's why my modifications for 8.1 are distributed as add-ons: you must have installed and running the original firmware, then you apply (flash over) an add-on. It makes the download smaller and update process faster!

To check the current add-on version in Android mode, go to Settings, About DX200, Build number at the bottom.

WARNING: Add-ons are not compatible with encrypted devices!
WARNING: Do not update Magisk via MagiskManager! It will cause problems!

There are two packages to choose from: either Windows-only (using included AndroidTool), or any platform (using DX200-bootable SD-card). The ZIP archive with the add-on contains readme.txt file with full instruction. Please read and follow it.

For Windows, you should have installed drivers from Rockchip. You can download them here.

Note: Updating an add-on removes additional Magisk modules. You'll have to re-install them after the update.

If you need Magisk Manager, please install it manually from the official source.

After iBasso released OTA-like update (1.05.036 or later), it is enough to re-apply any official firmare update, then do a factory reset.

You need to download the update from iBasso site, put it to SD-card or Internal storage, and start manual upgrade. Then you may install an add-on compatible with the new firmware version, if any.

It's up to the end user to decide whether these changes affect sound or not. I believe some of them make sound better, and none of them make sound worse.

• Google Play Store added.
• Reduced power consumption during music playback and in suspend mode.
• Overall performance increased.
• During music playback, the device is managed to prevent idle state tasks.
• Performance tweak for popular music players (Neutron, UAPP, Tidal, Spotify). Such a tweak is used on Rockchip SoC based devices for benchmark apps, iBasso sets it for its Mango Player.
• The process of device registration is much simplified (required to make Google Play Services work on uncertified device).
• Magisk can be used to install additional modules, and to provide root access.
• USB Audio application, which is also useful for its System settings.
• Custom build of HibyMusic, which plays bit perfect PCM up to 32/384kHz with no additional efforts, and is fully compatible with USB Audio application for bit perfect DSD and SACD ISO playback.
• Removed APKPure, CoolAPK.

• Removed Android services, that are not used in this mode.
• Performance insreased.

• Safer parameters of battery charger to prevent overheating.
• Better thermal control.

Note: MagiskManager icon is, actually, a stub injected by Magisk core. It is intended by the developer to help installing full MagiskManager, but I disable it to stop annoying. Should you need MagiskManager, please install it manually.

• 1.23 - release for official firmware 1.10.120.
• 1.22 - release for official firmware 1.09.097.
• 1.18 - release for official firmware 1.07.082.
• 1.17 - release for official firmware 1.06.041.
• 1.16 - release for official firmware 1.05.036.
• 1.13 - release for official firmware 1.01.006.