how do i unroot nexus s 4g?

[jstates916]

anyone have a guide to unroot nexus s 4g?

 

[gabbott]

[NS4G] Stock ROMs | How To Root/Unroot | OTA Files & Images - xda-developers

 

[jstates916]

Doesn't seem to be working.

 

[bamhm182]

I used the instructions in gabbott's link when I decided to unroot after fearing I'd screw up my brand new phone. They worked great for me. You need to unzip the file into /Android SDK/tools/<HERE> or /Android SDK/platform-tools/<HERE> to use them the easiest.