Updating the Software For A Sidekick 4G?

    I recently bought a Sidekick 4G off of eBay. I've always been a lover and very, very strong supporter of Sidekicks going way back to the Danger days. Well anyways, I'm a big fan of old school wrestling. I want to download the WWE App but the Android / Google Play says my phone is not compatible. I currently have 2.2.1 software on my Sidekick 4G, is this the most current software of the Sidekick 4G? If it is not, then how do I get the most current software for my Sidekick 4G?

     

    Any help I would be most grateful

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