[header] How to unroot a samsung galaxy s3 [title] Go to the unlockr website. [title] Click on the " odin " link located within the section entitled, " downloading required files. [title] Select the option to save the odin file to your windows desktop. 
[title] Go to the samsung updates website at http: // samsung-updates.com/device /? Id = sch-i535. [title] Click on the " download " link to the right of the appropriate firmware version to download the stock firmware for your galaxy s3.