Select from options: Continue writing the next sentence.

How to unroot a samsung galaxy s3
Go to the unlockr website.
Click on the " odin " link located within the section entitled, " downloading required files.
Select the option to save the odin file to your windows desktop.

OPTIONS:
I. Perform an internet security check to ensure that odin is not a virus or an unauthorized work. Protect your memory by clicking the " wait " button to save the odin file to your computer..
II. Navigate to the downloaded database for the file on the computer you're connected to. Select the " remove odin " option..
III. Wait while odin adjusts its firmware settings. Odin has a passcode that functions on all computers connected to your network..
IV. Go to the samsung updates website at http: // samsung-updates.com/device /? Id = sch-i535. Click on the " download " link to the right of the appropriate firmware version to download the stock firmware for your galaxy s3..
Answer:
IV.