This would be the second mini obd2 code reader I've purchased. The first one was questionable but this one was recommended to me by several others on here.. It will connect to my tablet just fine but once again will not connect to vehicle ecu.. I've sat in my car for 20 mins waiting for it to connect still nothing. Is there ANYTHING I'm missing that it won't connect? Please for the love of god help me before I smash this thing