how can i fix an error E1 on sam4s?

no

ben
January 2019

no, not the clear button or cancel. when I turn it of and back on the beeping goes away ,but when I touch the other button it won't respond like numbers. when I touch the rest it starts beeping again. how can rest the whole thing to factory setting or something like that. thanks

khaled
November 2013

Does it happen when you press the clear button?

Registerman
November 2013