So, the problem here is that AT&T has locked down the tablet operating system and security updates unless you pay for their carrier service. The software does exist. The best solution I have found so far is to cringingly pay the one month extortion cost to the service carrier to update your tablet and resolve to NEVER buy from AT&T again. In short, the solution is to buy an AT&T prepaid tablet sim, activate your service for one month, update the tablet once your device's IMEI number is in the AT&T system, and finally cancel the plan.
... View more