EKM Metering

modify the imp / kwh from 800 to 1600 and after that I have not been able to enter the dash of the meter, the meter screen remains in a single value all the time I imagine this stuck, what can I do?

how to reset an omnimeter v4 to factory values, since when making the modifications of the meter this is stuck and I can not see it neither in the ekm push nor connecting it directly to the pc, I would greatly appreciate your help !!!!