how to unroot my nexus s pls help

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hello,

i need help to remove superuser and lock my nexus s
+after doing that should i get official updates?

i did see this topic
http://forum.xda-developers.com/showthread.php?t=879041

and i try this solution

Originally Posted by ryude

You need to use adb to go in the file system and delete all trace of superuser and busybox. That is the only things rooting does, places those files on your phone and changes file permissions. File permissions, they won't look for, but I've had best buy scroll through the app drawer on multiple occasions looking for superuser/rom manager.

I have attached a zip containing all the files needed for adb. Since they no longer package adb with the sdk. Just open command prompt and cd to the directory containing adb. Make sure your phone has Usb Debugging enabled, then connect your phone.

You might need to download usb drivers in order for windows to recognize the device, but probably not. Once your phone is connected, do the following.

adb devices
adb shell
su
rm /system/app/Superuser.apk
rm /system/bin/su
rm /system/bin/busybox
rm /system/bin/rootshell
reboot

but when i write rm /system/app/Superuser.apk it say
Read-only file system

so what should i do i only get my XS unlock then install superuser using
install-superboot-windows.bat

and i never do recovery!!!!!!

so any help
i need to get my nexus like new and i should then gt updates

You can have superuser and get updates. The update will remove root though. You could always wait for the cm nightly to include 2.3.3

Sent from my Nexus S using XDA App

You have to mount the /system partition as read/write.

Easiest way is use Root Explorer.

You can also try the following from adb or terminal on the phone:

su
mount -o rw,remount /dev/block/mtdblock3 /system

thanks for your reply

i used Root Explorer to mount the /system partition as read/write.

and then

i did write this codes

adb devices
adb shell
su
rm /system/app/Superuser.apk

and every thing was ok
but i have an error on those lines

rm /system/bin/su
rm /system/bin/busybox
rm /system/bin/rootshell

and every time i get file not found

so what i should do???

hello, tominater12 and thank you for reply
cold you tell me how i can remove superuser and root using the update??????

i want to get my nexus s like new no root no superuser
so any one can help?

hi guys,

this is my first post in the forums, but after reading and watching many videos on how to remove it i have found a solution...my nexus s is now unrooted with no superuser...

make sure u have android sdk installed, and have usb debugging on.
restart phone into recovery

open cmd and type -
cd c:/AndroidSDK/tools/
adb shell mount /system
adb shell rm /system/app/Superuser.apk

ALL CREDITS GO TO 'TheUltraLinx' ON YOUTUBE,
who has fixed my phone to factory settings

flash oem rom and fastboot oem unlock?