Before You Buy --- Make sure your device is eSIM compatible and unlocked, note that Mainland China esim is an electronic SIM card, not a physical Mainland China SIM card. Activation Required --- Log in s://.mewfi/esim and fill in your order number and email, please register 2 days in advance to ensure that we are able to activate China SIM card in a timely manner. How to Use? --- After activating Mainland China esim, we will send you a QR code and eSIM settings by email, please keep the QR code and scan it before boarding. High-speed Data --- Enjoy 10 GB data for 30 days of 4G LTE compatible high-speed communication with stable network, wide signal and fast speed. Satisfactory Service --- Any problem feel free to contact us via mewfi after-sales service : Whatsapp, e-mail, we will reply you asap. China SIM Card 30Days, Mainland China Sim Card with Mobile Number, Activation Required, 4G/5G Operating Network, 30 Minutes of Local CallsAvailable Countries: Mainland ChinaHow to Use: Please register 2 days in advance to ensure we can activate your SIM card on time.Activate by clicking the link: ://.mewfi/book.Information Required for Activation: order number: can be found in Order History - Order Information - View Order Details. Activation date: the actual start date of use. (Date format is YY-MM-DD). ICCID: This number can be found on the back of the SIM card (89xxxxxxxxxxxxxxx). Email: Activation notifications will be sent via email.Any Restrictions: Do not insert the sim card until you arrive in the destination to avoid deductions. 3G/4G/5G signal is available dependent on geographical locations. If the travel time changes, please log in to the website again 3 days in advance to submit information.Satisfactory Service:If you have any problems with the China sim card, you can contact us via Whatsapp, email or after-sales service, we will reply you asap.