Contribution d'origine par : Bobby ,
have you tried connecting a new display that you know works? It wouldn't be the first time a display died because of water damage. If that doesn't work, theres a damaged component somewhere on the board. Have a look with your microscope, look where there was initially corrosion you already cleaned off. If nothing is obvious then get out schematics and start testing components until you find the little rascal causing your problems. I'd suspect its NOT an IC.