Truck won’t start

What is your question?

My truck won’t start but I had my battery tested and it is good and connections are both clean with no corrosion. When I turn the key in the ignition nothing happens. No dash lights, no cranking and I also can’t shift into neutral to tow it or any other gear. Had someone come out to try reprogramming a new key after some suggestions and his reader wasn’t getting any data just kept saying nothing found. He did hook up his battery to mine to attempt a jump and still nothing happened. Occasionally while hooked up to the other battery the dash would flicker on but would immediately turn off. I have taillights and headlights and I can lock and unlock the door using the buttons on the door but my key fob does nothing. I even bought a new battery to try and still nothing happened. I tried a new WINN module as well and still nothing. Please let me know any suggestions.

How long has your 2013 Ram 1500 had this problem?

Three weeks