If you can access the watch's internal settings, follow these steps: Navigate to > System Settings . If prompted for a PIN: Unregistered watch: Use 0160 .
: A hard reset will erase all personal data, apps, and settings, restoring the device to its original factory state. SIM Requirements How to Hard Reset MYKI Watch 4
Turn off the watch, pop out the SIM tray, verify the PIN is deactivated via a normal smartphone, and re-insert. Next Steps: Re-Registering Your Device If you can access the watch's internal settings,
Try these sequences one by one. Press and hold the buttons for 10–15 seconds: pop out the SIM tray
Locate the side button (the only physical button on the MYKI Watch 4, usually on the right side).