faulty detector advice

l have a garrett AT gold, l turned it on today and the LCD screen comes on everything seems normal except it doesn't detect , when l pass the coil over a metal objects it no longer dectects or makes a noise, nothing happens. Theres nothing wrong with the volume as it makes a noise when l adjust threshold. Anyone guess what the problem is?

Might sound a little silly, but is the coil screwed in or does it make a noise when you wiggle the connection, both where the wire plugs into the detector and where the wire attaches down at the coil?

On the odd occasion, they need to be reset, not sure why, but iv had to do it to a couple now....google the reset procedure and give it ago.?

Yes l checked the coil was screwed in properly, l reset the detector but still having the same problem, everthing seems normal except the detector does nothing when the coil passes over a metal object, l started having the problem after l recharged the AA batteries and put them back in, but l don't see how that caused it, do you think its a faulty coil or faulty coil lead wire

l found out the problem , l didn't plug the coil wire lead in properly

Well...that'll cause a problem for sure....lol