Unroot Samsung galaxy Ace Gt-S5830i

Unroot Samsung galaxy Ace Gt-S5830i

-first you have to turn off your phone
-press the home button , power button and volume up key (all at the same time)
-wait a little bit, now you're in recovery mode, use the volume keys to scroll up and down and use the home screen button to select
-select apply update from sd card and select the file named : unroots5830i.zip
-now select reboot system now there you go :)
 now your phone is unrooted

 Unrootzip:http://www.4shared.com/zip/V5GAoKLS/UnrootS5830i.html