Just swapped out the batteries in both a Cadence sensor and a Speed sensor and now they both won't hold a signal. I've figured out what the problem is, but I need a hack to make them both work again. When both battery covers are in the lock position, it's not sending a signal unless I put pressure with my thumb at the center of the battery cover. The minute I release my thumb, my 530 loses the signal. The cover is definitely seated on both sensors, but for some reason, is not allowing the contact to properly pressure the battery to allow power. Anyone have some kind of jury rigging trick to get more pressure on the cover to allow a signal?