Upgrade method of telephone watch: 1. You need to check the upgrade reminder in the mobile app- watch information-firmware version; 2. According to the tips inside, connect the mobile phone watch to the mobile phone watch upgrade method: 1. You need to check the upgrade reminder in the mobile app- watch information-firmware version first; 2. According to the tips inside, connect the mobile phone watch to the data cable and charger. According to the upgrade mode of the mobile phone watch: 1, you need to check the upgrade reminder in the mobile phone app- watch information-firmware version first; 2. According to the tips inside, connect the mobile phone watch to the data cable and charger. Upgrade mode of telephone watch: 1. You need to check the upgrade reminder in the mobile app- watch information-firmware version first; 2. According to the tips inside, connect the mobile phone watch to the data cable and charger. Upgrade mode of telephone watch: 1. You need to check the upgrade reminder in the mobile app- watch information-firmware version first; 2. According to the tips inside, connect the mobile phone watch to the data cable and charger. Upgrade mode of telephone watch: 1. You need to check the upgrade reminder in the mobile app- watch information-firmware version first; 2. According to the tips inside, connect the mobile phone watch to the data cable and charger. Upgrade mode of telephone watch: 1. You need to check the upgrade reminder in the mobile app- watch information-firmware version first; 2, according to the tips inside, connect the mobile phone watch to the data cable and charger.