To set a PIN number on your miHealth to prevent unwanted users, follow these steps:
1. Power on your miHealth device
2. Touch the wrench in the bottom right-hand corner
3. Select the PIN option
4. Touch the blank white bar next to the word PIN
5. Input the PIN of your choice
6. Touch the left-pointing arrow to save your pin
If you wish to change your PIN, follow the same steps listed above, only input a different PIN on step 5. This will update your PIN.