So, I've put together a quick video to demonstrate the defect for you. I was going to do a walkthrough but I think the video demonstrates the defect very well. I was having some issues with my F430 (one of the reasons I bought the X430 with TMC) switching off randomly, often when I was trying to press something at the bottom of the screen but occasionally when I went over a bump in the road. Anyway, I took it apart to see if there was anything loose and noticed the issue didn't appear when the screen was off the base of the device. Reassembling the device caused it to go utterly haywire. Trial and error and soon enough I was able to reproduce the defect consistently. The main ribbon cable attaching to the screen is uninsulated
. It shorts with either a metal plate on the board or the two contacts which I show in the video. Either way, voila, the device dies and this is consistent and I've now been able to reproduce on 2 F430's. Now let me clarify, perhaps the insulation has broken down or something, these devices are getting old now, but this would be the first mobile device I've ever seen this happen too. It also perhaps explains the amount of spares and repairs that I see on eBay.
Here's a video with a bit more detail of the issue and a fix. I have some hi res photos if anyone is interested.
If you decide to do this, make sure you're careful taking it apart. Quite clearly Binatone didn't want you to.