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How to Unroot Nexus S! [i9020T][i9020A][i9023]

Need to return your Nexus S back to T-Mobile your any other carrier for any reason?  Well, you can unroot your Nexus S completely back to stock, very easy to do by following the step-by-step guide outlined here.

(For Nexus S 4G, please see How to Unroot Nexus S 4G.)

Step 1. Download the appropriate stock OTA zip file for your Nexus S.

Download this zip for i9020T and i9023 models:

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