Can’t Get out of anti theft mode.. 2012 Crewmax will not start

Truck all sudden would not start. Waited about five minutes started. Drove for about 30 minutes. Turned off would not start. Would not start with a jump. Left disconnected for about 8 hours. Purchased new battery. Put it on and truck started right up. I was sure that was it. Turned truck off and again would not start. Now when I get in truck open door and or try to start. Dash lights and hazard lights will blink 30 seconds. I’ve tried the 30 second thing on key in drivers door lock. Still no go. It would appear that the anti theft has disabled the start process. I also did extensive relay testing on stranger relay. Any suggestions?

 

If you have a full spare key try it, if not have your key tested with your Tundra to see if the chip is going out.