Monkey test,Time service, Security plugin android virus fix by CMD adb mode
adb devices (Type this line if you're using adb Windows)
adb shell
su
mount -o remount,rw /system
cd system/priv-app
chattr -iaA providerCertificate.apk
rm providerCertificate.apk
chattr -aA cameraupdate.apk
rm cameraupdate.apk
cd ..
cd system/xbin
chattr -iaA .b
rm .b
chattr -iaA .ext.base
rm .ext.base
chattr -iaA .sys.apk
rm .sys.apk
[NOTE: If you are using older version than KK you need not to type priv-app just type cd system/app]
Source by : googling
adb devices (Type this line if you're using adb Windows)
adb shell
su
mount -o remount,rw /system
cd system/priv-app
chattr -iaA providerCertificate.apk
rm providerCertificate.apk
chattr -aA cameraupdate.apk
rm cameraupdate.apk
cd ..
cd system/xbin
chattr -iaA .b
rm .b
chattr -iaA .ext.base
rm .ext.base
chattr -iaA .sys.apk
rm .sys.apk
[NOTE: If you are using older version than KK you need not to type priv-app just type cd system/app]
Source by : googling