What does the OK or NOK notification text mean when the Healy App is minimized?
When the Healy App is minimized but a program is still running, the OK or NOK notification text tells you if the electrodes/cables are properly attached during a program.
-OK means that they are properly attached and conductive
-NOK means that they are not properly attached and not conductive. In this case, re-attach the cables and/or moisten the contact point on your body