関連ワード:  how to turn off iphone idle mode    how to turn off iphone sleep mode    how to turn off iphone standby mode    how to turn on iphone standby mode    how to turn on iphone sleep mode    how to switch off iphone standby mode    how to turn on iphone standby mode without charging    how to shut off iphone sleep mode    how to turn off iphone 16 standby mode    how to turn off iphone 15 standby mode