To remove Browser export the rom (.PAC) and unpack it. then edit the NV file using a hex editor.
now for the details themselves, the PAC file contains various files, including EXEC_KERNEL_IMAGE, EXEC_USER_IMAGE, etc.
Everyone is always sure that to make the changes, one of these files, or the mmi_res file, is handled.
In fact, there is another file, almost hidden, but this file (for those who know the field) contains very important settings.
The name NVItem doesn't mean much to most people, but in fact many modems use NV files for the modem's settings.
The reason these settings are in a separate file is that the modem is one of the parts that requires the most changes between operators, countries, etc.
In Mocor OS (Spreadtrum's operating system), NV is also widely used for the rest of the settings.
What is an NV file? This file contains information that is stored in the following way:
At the beginning of the file there is a Header, followed by a series of elements that are stored one after the other.
Each element consists of an ID, two bytes long, the length of the information, stored in a two-byte variable, and the content of the definition.
That is, for example, if I have element number 1 that contains only the digit 1, the information will be stored in the following form:
01 00 00 01 01
Element number 680 that contains the digits 1 to 10 will look like this:
A8 02 00 0A 01 02 03 04 05 06 07 08 09 0A
Now for the interesting parts, the important thing is to know which setting is in which ID.
This is where the research I did on the Mocor OS source code comes in and that's where I discovered that the relevant ID is....
680
The device menu settings are stored there in the format 00 00 00 01, meaning that there is room for a number up to 4 bytes long, and each number is actually one object in the menu.
By the way, 01 is messages.
Now, to change the menu, all you need to do is change the number from 01 to 00 and that place in the menu will be "empty," meaning the menu will be reduced by one.
Of course, if you want to do a "clean" job, it is better not to just delete elements in certain places but rather to "rebuild" an organized menu (the initial order is also decided based on the position in the list), but even replacing a number with 00 will remove it from the menu.
That's it, that's how you set up the device
