You can also follow these steps: 1  Plug your device in to power and connect to the Internet with Wi-Fi. 2  Tap Download and Install. 3  To update now, tap Install. 4  If asked, enter your passcode.ou can also follow these steps: 1  Plug your device in to power and connect to the Internet with Wi-Fi. 2  Tap Download and Install. 3  To update now, tap Install. 4  If asked, enter your passcode.
This maximum rate is based on the person's age. An estimate of a person's maximum age-related heart rate can be obtained by subtracting the person's age from 220. For example, for a 50-year-old person, the estimated maximum age-related heart rate would be calculated as 220 - 50 years = 170 beats per minute (bpm).
So, using the example above, here's how to calculate the target heart rate zone for a 34-year-old who has a Maximum Heart Rate of 186 and a Resting Heart Rate of 74: For a 50% Target Heart Rate: [(186 â 74) Ã 0.50] + 74 = 130 bpm. For a 85% Target Heart Rate: [(186 â 74) Ã 0.85] + 74 = 169 bpm.