How to UnRoot Samsung Galaxy Mini S5570

Immediately:
Download:

file unRoot
- download  HERE

installation:
1. Download file
2. Rename the file name:
  unRoot.zip files that are rename it update.zip

3. Put the file, to / SDcard / here (NOT in any folder)
4. turn off and then turn on the air by pressing the Home + Power
(To go into recovery mode)

5. Choose apply sdcard: update.zip
6. Reboot system now
(Successful: there are icon Super User ->, on your Samsung Galaxy Mini menu like this :)