Unfortunately your out of luck Joe. The "life time" warranty days are long gone. These days it's a 90 or 30 day warranty(can't remember off hand) with receipt and must be purchased by a U.S. vendor to get support from tamiya u.s.a. At that they will then only usually cut you a 50% discount on purchasing a new unit if they can't fix yours. This all being said it wouldn't hurt to box them up and put a note in the box with the issue and your contact info. Nothing to lose since they are small paper weights now. In the past few 2 or so years we've really seen more electronic failures on the tammy stuff, especially the flash circuit and again unfortunately their support has gone down hill. Probably won't be long till we see people buying tammy kits and selling the DMD/MF and putting their own systems in unless tamiya gets motivated on updating their tank electronics.