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).
(220 - age-resting heart rate) X percent of maximum heart rate + resting heart rate. (220 - 24 - 65) X .60 + 65 = 144. (220 - 24 - 65) X .80 + 65 = 170. According to this formula, Devon should maintain a target heart rate between about 140 and 170 bpm to reach 60 to 80 percent of maximum heart rate while working out.ormula 2:Maximum workout heart rate, adjusted for resting heart rate = (220 - age-resting heart rate) X percent of maximum heart rate + resting heart rate (220 - 24 - 65) X .60 + 65 = 144 (220 - 24 - 65) X .80 + 65 = 170. Alice!