I hope this post is in the right place… I took a kid detecting today and we could not get his headphones to pair with his Vanquish 540. I used to use the 800 so am familiar with the pairing difficulties, and tried everything in my bag of tricks. The issue is the Bluetooth icon never appears on screen when attempting to pair. He said he’s tried everything he’s read and watched on YT but nothing has worked. He’s done a factory reset on the detector. The phones will pair with other devices, just not the VQ. Any ideas?