HELP!!! PROS ATTENTION PLEASE 
I was using the old sparkfun autodriver with miso and mosi pins ( Getting Started with the AutoDriver - SparkFun Learn). and then i replaced it with sparkfun autodriver v13 ( Getting Started with the AutoDriver - v13 - SparkFun Learn), and now the v13 is acting weird is there aything that i need to keep in mind when i swap these boards, some more detail these boards are connected to arduino for spi communication and when i look at the output from these boards with oscilloscope they are kinda same sqaure wave 25v and 1.5KHz to 8Khz ish. My current system has one old board and one v13, the system was designed based on board(miso/mosi) but later one of the board got damaged and i had to swap it up with v13(sd from prev bd/sd to prev bd) version. Can someone help me with this?