ADAS 2K DVR reduce audio beep not working + fail tu update sys app

Dear esteemed mod, admin and developer,

I experience the below issue,

After updating MainServer system apps to v 25.0915, my 2K DVR reduce audio when beep looks like not working, media or radio audio stil playes and beep at the same time.
Unable to update List of models v1.0 system apps.

Please find the attched screenshot

hafiz_tahir hi mod/admin, any bugfix for this?

DUDU-Meng Hi,
I am using DUDU6 7862, the firmware in the drive is 7870.