Guide: How to uninstall a system application

On Android there are system apps and user apps. System apps are stored in the system partition and user apps in the user partition. For security reason you cannot alter the system partition as a user. That is the reason why a user can not uninstall system apps. The app menu for Home Theater, Music Player or Media Manager don’t show the uninstall button like eg. the preinstalled user app Chrome does (Z9S with firmware v2.3.33. It might be differ on your player).

To modify the system partition of your device it has to be rooted. For this task download listed applications:

• Zidoo OnekeyRoot (X9S) or Zidoo OnekeyRoot (Android 7.1)
• Android Terminal Emulator

Download the APKs and put them on a stick or in the download folder of your player’s internal storage.

There are several ways to install an APK eg. double click on the APK in the Media Center. With the app ApkInstaller you can install several APKs at once.

execute ApkInstaller

ApkInstaller scans your system for APKs, so you might have to deselect what you don’t want to be installed

press the Install button

execute OnekeyRoot and follow the instructions on your screen

after reboot your device is rooted

execute Terminal Emulator

change from role user to superuser

su

use the package manager to list the installed Zidoo packages with their package names

pm list packages | grep zidoo

use the package manager to uninstall Home Theater with package name com.zidoo.poster

pm uninstall --user 0 com.zidoo.poster

pm uninstall com.zidoo.poster

Home Theater is no longer listed under APPS

or here

but here under system

The Home Theater app is still on the system partition

change to system app directory

cd /system/app

list all directory starting with zidoo

ls -ld zidoo*

force recursive remove of directory zidoo_poster

rm -rf zidoo_poster

The system partition is read only by default so just removing the folder zidoo_poster will fail. To get write permission on the system partition it has to be remounted

mount -o remount,rw -t yaffs2 /dev/block/mmcblk0p1 /system

now you can remove the folder zidoo_poster from system partition

rm -rf zidoo_poster

Home Theater has completely remove from your device

Reboot your player

reboot