Gibh is right check all these things. The good news is it powers up! After taking off your coil cover and cleaning all that. unhook your cable there are male and female connectors clean them with a tooth brush. sometimes dirt gets in there and can interupt the signals. Make sure your not inside your house or around power lines when checking all this stuff so you can rule all that stuff out. Gibh said check your battery pack. Those recharge packs are notorious for going bad on you thats why I never use them. They can show a full charge then a few minutes later die completely. One time I had a friend who just got off work we went out too detect after about ten minutes he was bitching that it wouldn't pinpoint and he got signals everywhere. I told him steel toe boots can do that. lol problem solved. check your sensativity also. If none of this works find a friend who has a coil that well work on yours and try that. coils do go bad. If it's not that check inside battery box sometimes the connection prongs lose strength and don't touch the battery box connectors like they use too. and if all this fails it may have too go too whites for surgery.