I recently purchased a used US Cellular Galaxy Tab 10.1 from a family member. I do not have US Cellular service and had planned to use it at home on wifi only. I reset the device and linked my Google account, then tried to check for an software update...and then it gives me this message "Fota service is not available. Please, try again later!" My Android version currently is 3.2. Any help would be appreciated, as some of my favorite apps wont even install from the play store (espn scorecenter, chrome, etc), because it says "your device isn't compatible with this version".