iBasso DX240 Ver.2.01
DX240 DAP. DAC ES9038PRO - AMP8MK2 .****** NEW Firmware! 2.01 ******* | Page 151 | Headphone Reviews and Discussion - Head-Fi.org
Improvements with this firmware:

1. Rectified the bug that the volume wheel can not control Bluetooth volume. (Android OS)
2. Rectified the bug that the lock screen password can not be set.(Android OS)
3. Rectified the bug that there is a possibility that white noise occurs during playback.
4. Allows the drop down of the notification bar with three fingers. (Android OS)
5. Improved the battery saver function, now battery saver works when charging with the player powered off.


iBasso DX320 Ver.2.05
DX320 ROHM dac chips, Android 11, AMP11MK2s. *******NEW FW: 2.04******* | Page 550 | Headphone Reviews and Discussion - Head-Fi.org
Improvements with this firmware:

1. Improved the battery saver function, now battery saver works when charging with the player powered off.
2. Rectified the bug that some APPs can't access the Micro SD card. (Android OS)