How do I completely re-install the new Android on my Samsung Galaxy S3?

November 11, 2013
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Hi all,

I have a Galaxy S3 that I bought unlocked from ebay (ATT branded). I am doing business with T-Mobile; prepaid plan. I am interested in uninstalling my current OS and install the latest Android OS. I think my phone needs a complete OS reinstallation since I have noticed that apps have started to run very slowly. The phone even closes apps like Facebook and the Camera when it appears to work hard to keep up. Maybe I am running out of memory but I have tried to close most background processes and apps and clear the memory.

So, how do I get the latest Android OS on my phone? I am thinking of backing up everything through Kies, installing the latest OS and use Kies recovery to restore my data.

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