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In case you’re one of the users anxiously awaiting firmware revision RC29 but haven’t seen an over-the-air update yet, despair not, because there’s an easy process to update the phone using the MicroSD card. You will need the firmware from Google (https://android.clients.google.com/updates/signed-kila-ota-115247-prereq.TC4-RC19+RC28.zip) and the installation instructions from androidcommunity.com. A word of warning: T-Mobile would rather you’d leave it alone and wait for the OTA update, because manual updates may brick your phone.