it's probably not what is flashed. A lot of the times techs just pull parts of whatever and mix and match. His head is from a wba11, but he seems to have a wba12 transport. Can you post a photo of the underside of your validator (pull it out and post a photo of the area with the chips on it), also a photo of the rear connector. It is also possible that you have validator power supply issues. If you are handy with a soldering iron, I would open up the validator power supply (which is usually attached to the side of the validator cage) and look for bulging capacitors.