I try to edit main menu – hide apps, like internet, for example.
It is possible, I happened to see such devices.
According to hints I received, it is in one of these files in the firmware (after extracting the pac file).
ums9117_240X320BAR_64MB_NQ2_VD_SEC_nvitem_ER_23QEN76ER00.bin
and
mmi_res_240X320_ER.bin
I compared between both files, And I didn’t find any equal sections.
So apparently, although the information is present in both files, it is represented in different ways.
I check files with binwalk.
from nvitem

and from MMI_RES

As you can see, what is in nvitem is encrypted, so I didn’t mess with it.

In mmi_res, the only files that seemed related to me are circled in red.
But they are only MySQL index files, without the data files themselves, so I could not open them with MySQL.
I tried to take a look at them with hxd, or ghidra, and they seem to contain information about the various apps.
But I couldn’t make progress