China Mobile: Please connect your watch with your mobile phone through the "Health" App, enter the "Health" App > ESIM and mobile network, find the card that has not been successfully opened (such as Mobile), pull it to the bottom and click the "Unlock" button to jump to the "Heduo" App (don't directly enter the "Heduo" App), click the "Home > Watch > Activate the watch, and download it again according to the page prompts.
China Unicom: please connect your watch with your mobile phone through the "Health" App, enter the "Health" App > ESIM and mobile network, find the card that has not been successfully opened (such as Unicom), click the Unicom card option to jump to the "China Unicom" App (don't directly enter the "China Unicom" App), enter the "ESIM area", click to enter, and then download the eSIM card again according to the page prompts.
China Telecom: Please connect your watch with your mobile phone through the "Health" App, enter the "Health" App > ESIM and mobile network, find the unsuccessful card (such as Telecom), click the option of Telecom Card to jump to the "Telecom Business Hall" App (don't go directly to the "Telecom Business Hall" App), and then download the ESIM card again according to the page prompts.