1- Identify your ZD model.
2- Find the physical button
For ZD1200/ZD3000 find the physical 'FD' button hole in the front panel of the ZD.
- For ZD 1000/1100 find the Reset button hole.
- For ZD5000, it is just below the power button in front panel.
3- Make sure ZD is powered On while you perform factory reset.
4- Take a paper clip, push and hold the FD button (For ZD1000/ZD1100 push and hold reset button) for 10-12 seconds (10 seconds is the factory default trigger time but we recommend to hold it for at least 12 seconds) and then release the button.
5- After reset is complete, the Status LED blinks red, then blinks green, indicating that the system is in factory default state (if you see a solid red LED for too long, say more than 10 minutes, then this indicates hardware failure and you may need to replace the device).
6- Factory reset completed.