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).
To calculate this range, follow the same formula as used above, except change 50 and 70% to 70 and 85%. For example, for a 35-year-old person, the estimated maximum age-related heart rate would be calculated as 220 - 35 years = 185 beats per minute (bpm).The 70% and 85% levels would be: 1  70% level: 185 x 0.70 = 130 bpm, and.or example, for a 35-year-old person, the estimated maximum age-related heart rate would be calculated as 220 - 35 years = 185 beats per minute (bpm). The 70% and 85% levels would be: 1  70% level: 185 x 0.70 = 130 bpm, and.