Summary
Steps on factory resetting a GT-DM or GT-DMA Entrance Station.
Solution
- Turn on all switches (1-4) of SW1 and switches 2, 3, and 4 of SW2.
- Turn on the power while pressing down the up and down arrow buttons.
- Release the up arrow button after a beep is emitted and “Blue back” is displayed.
- Release the down arrow button.
- Press the X and Bell buttons.
- “DELETE” is displayed during the initialization.
- “Voice sentence” will be heard and the display turned off when it is done.