yeah, looks like an rgbbb,
the common wire (the white one) has fallen off so without it the backlight won't work,
i was going to ask you to just PM me but this info might help others, but basically if you can remove the epoxy material you can somewhat easily remove the PCB which holds the LEDs and fix this. if you peel up the optical films from the light guide you'll find there is a little cavity in it which holds the PCB in place, you can lift it out with it exposed, fix it, and put it back in. and it'll be essentially like new.
if you happen to crease your film at all doing this, when peeling it up to get to the PCB, we sell spare sheets of it so just get in touch and i'll point you that way
and, if you need to replace the adhesive strip along the bottom, the thin double-sided tape is functionally the same, just cut it into a thin strip