After Factory Reset in Service Menu my Device Name is changed from UE55J6350 to NE5500
and I can't change this, but Name is not my problem, after that I can't run Apps and can't connect to internet.
Hey, my UN60JU6500 did the same thing after replacing main board.. Does the name affect anything else as far as functionality or (dare i say it) what firmware updates the TV will or will not receive?