I have a lot of 15 Nuvi 760 units and i tried setting splash screen on 6 of them one after another. The result is inital Garmin logo displayed half on the top and the lower part as corrupted image. The next screen that is supposed to display splash screen is all black with Garmin's copyrights shown at bottom. Out of these 6 units, 2 of them suddenly showed up a dead screen. They show no sign of life even when connected to charger or usb cable. Another one turned dead when i tried installing Garmin's software upgrade to it. I followed all the steps mentioned everywhere on internet. What might be wrong?
