My friend came up with the answer, after watcing this video,,,,,,,,,,,,,, https://www.youtube.com/watch?v=ySfbwUG6qeU ................ it's about a similar tablet.... the back prises off, using thin knife blades and similar levers...... i couldn't even see that there's a join, there's just a slight line in the plastic, but sure enough it came apart, and there's a socket for the ribbon cable with a locking tab that you can lift up with your thumbnail....jw