Model HBC84K5.OB (en5650 044 548). I have a microwave HBC84K5.OB and the inner glass door has shattered. I have a replacement panel but cant work out how to fit it. I can seperate the front door from the inner but how do I remove the broken glass to replace it. There seem to be two clips at the top and a number of screwws with odd heads that dont seem to take slotted drivers. How do I get the inner panel (next to the wire mesh) out