Brand: ILCE Model: UM09FDNS3MGGSN: 23P10000900002 Customer has described issue: Issue- touch screen not always working. Diagnostic result:Complete disassembly of the entire device. Diagnostics of the health of all electrical circuits and systems. Elimination of corrosion as well as poor connection of wires as well as user interface and touch screen.Checking the serviceability in the presence of the client.At the moment, the system is fully functional and ready for further use