cracks in display-case make LCD white

Hello friends of ifixit,

i'm from germany, maybe you could excuse my english.

i have a macbook white unibody A1342 with the well known cracks in the display case near the clutch.

now the problem is, that the cracks and the resulting deforming and flexing making from time to time a disconnect between the LCD and the macbook. it makes the LCD become completely white in worst case or stopping the refreshing of the lcd-picture.

when i hold the upper left corner and bend it backwards and hold it in that position, the LCD works fine.

now i had read several step-by-step guides (in fact i read all), but didn't find a idea how to fix it or where to find the point of the disconnection.

then i used the guides to open the display back-panel during the running macbook to find out more. unfortunately i didn't get any new idea.

i didn't reach the plug in in the lcd yet, but on ifixit you can see, that the plug is embedded in a frame which should it protect against flexing.

i used glue to fix the cracks and it helped, so the display lost the picture not anymore until the glue broke again.

i hope someone could advice me how to fix the cracks, because i need my macbook desperately.

and the last question is, which kind of glue do i need an hand it to close the glued display back-panel again in a way, that i could open it again?

thanks in advance

regards