LG-F180K Deleting Package Failed :

Definition Applied
Preparing..
Searching Phone..
Phone Found..
Setting Sys Config…
Making Backup…
Apk Saved To : Backup\com.sailer.coolbrowser Size : 2649925 Bytes
Deleting Package Failed : /system/app/com.sailer.coolbrowser.apk
Making Backup…
Apk Saved To : Backup\com.android.htmlviewer2 Size : 30323 Bytes
Deleting Package Failed : /system/app/htmlv.apk
Making Backup…
Apk Saved To : Backup\com.android.stk Size : 76669 Bytes
Deleting Package Failed : /system/app/Stk.apk
Making Backup…
Apk Saved To : Backup\com.qualcomm.timeservice Size : 2604 Bytes
Deleting Package Failed : /system/app/TimeService.apk
Cleaning Cache..
All Removed ok..
Rebooting..
>>All Done..