If We want to uninstall the apk, using adb, we need to know the package name of the application. Using package name, use below command. [ Note: we considered the package name as “com.android.helloword” , you can use your application package name ]
$ adb shell pm uninstall com.android.helloworld OR
$ adb uninstall com.android.helloworld Now, lets say you have a development board / device and you want to know where the application/service is installed as part of system apps, and want to delete this permanantly, then use the below procedure,
$ adb shell $ su $ mount -o rw,remount /system $ cmd packages com.android.helloworld Above command will return, where this helloworld system application in installed in /system/app OR /system/priv-app
$ rm PATH_TO_APK_AS_RETURNED_ABOVE