Brother mfc-j6920dw A3 all in one printer for spares or rep (Elmers End BR3)

Fantastic all in one printer, but sadly the lcd no longer works. I replaced the printhead with a brand new one, but as I reassembled it, the lcd stopped working. thought it was rhe ribbon cable but not so. pretty sure there's something wrong on the lcd motherboard, but it's beyond me. free to anyone who can use it for spares or indeed repair it. shame to see it go. It does show signs of life otherwise, and im sure everthing else works. also included are some refillable ink cartridges.