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  Re: how do I up update my operating system on my Galaxy S 3 t-mobile phone?

  e2k Aug 18, 2016 9:53 PM (in response to kelle4fsu)

  • Member Since: Jan 7, 2015

  Updates for the S3 are no longer being developed. Either you flash a custome ROM (which we cannot discuss here, go to XDA developers if you are interested) or you stick with your current ROM. Note that customer ROM flashing is completely unsupported, and you take complete responsibility for anything that happens to your phone as a result.