Did I ruin my Dev Board?

I bought the gps + sd card expansion board from justcallmekoko, but after soldering it on I can’t get a fix anywhere. It also has 10x the power draw than without it plugged in. This is my first time soldering anything, so I may have messed something up. All the marauder features still work the exact same as before, there is just the massive power draw now and the gps doesn’t work. The gps app doesn’t show where I am either. The sd card works just fine. Is there something I forgot to do or did wrong? To be specific, this is not a question about marauder, this is a question about gps.