Global SIM Link
Global SIM Link
- What's New
- Service Overview
- Getting Started
- User Guide
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FAQs
- FAQs
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Billing
- When Does an IoT SIM Card Start to Get Billed?
- How Long Is the Inactive Period of an IoT SIM Card? What Are the Card Usage Time and Validity Period?
- How Long Is the Test Period of an IoT SIM Card Provided by Carriers Outside the Chinese mainland? What Are the Card Usage Time and Validity Period?
- When Does the Validity Period of an IoT SIM Card Start to Be Counted? Is It from the Time When the Card Is Activated or from the Time When the Order Is Placed?
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Restrictions
- What SIM Card Types Does GSL Provide?
- What Are the High-Risk Areas for GSL?
- What Networks Do Carriers Support?
- Can I Configure Fixed Addresses for an IoT SIM Card After the Purchase Process?
- Can I Configure Dedicated Data for Specified IoT SIM Cards of an Order Separately?
- Can I Change the Data Type from the Current Dedicated Data to General Data?
- Can I Use an IoT SIM Card on a Phone?
- Can I Specify the Number Segment for an IoT Card?
- Why Should I Use GSL Instead of Purchasing SIM Cards Directly from Carriers?
- Can I Return SIM Cards Purchased on GSL?
- Does GSL Have Requirements on Modules?
- Can I Manually Disconnect an IoT SIM Card or Set an Auto Disconnection Threshold for It?
- Dedicated Data
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Purchase
- Can I Purchase a Small Number of IoT SIM Cards at a Time?
- How Can I Request an Invoice?
- Why Are the Prices of Orders with the Same Plan and Quantity Different?
- Can I Change the Carrier and Plan for a Purchased IoT SIM Card?
- Can I Purchase an NB-IoT Card?
- Can I Use an IAM Account to Purchase IoT Data?
- How Do I Purchase an Add-on for My IoT SIM Card?
- Can I Purchase an Add-on for My SIM Card After the Data Was Used Up?
- Can I Return My SIM Card Because the Data Plan Is Not Enough? Or How Can I Solve This Problem?
- Logistics
- Activation
- Data Querying
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IoT SIM Card Management
- How Do I Query Basic Information About an IoT SIM Card, Such as the Card Number and MSISDN?
- How Do I Bind a SIM Card to a Device?
- Can I Bind a Bound SIM Card to Another Device? How Can I Rebind It?
- Do IoT SIM Cards Support General Data?
- What Are the APNs of Different Carriers?
- How Do I Apply for Replacement of My Lost IoT SIM Card?
- How Do I Export IoT SIM Card Information?
- What Are the Differences Between NB-IoT SIM Cards and Common IoT SIM Cards?
- How Long Does It Take to Process Requests for Batch Operations?
- Why Is My IoT SIM Card at Work Still in Testable or Activatable Status on the Console?
- For a SIM Card That Requires Real-Name Authentication But Has not Complete It, What the Card Status Will Be If I Insert It into a Device and Power It On? Will the Usage Time Be Counted?
- For a SIM Card Suspended Due to Violation, Can I Resume It After Completing the Real-Name Authentication and Power It On?
- Why Is My IoT SIM Card Data Still Unavailable on the Console After I Received the Physical Cards?
- How Do I Reset the Network of an IoT SIM Card?
- Why Is the Network Signal of an IoT SIM Card Weak?
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Unavailable Status/Suspension/Resumption
- Why Is an IoT SIM Card Inserted into a Device Unavailable? Why Is an In-use IoT SIM Card Suddenly Unavailable or Disconnected Frequently?
- How Can I View the Cause of IoT SIM Card Suspension?
- How Can I Resume an IoT SIM Card Suspended Because I Use It in a Phone?
- What Can I Do If My IoT SIM Card Cannot Be Used After I Inserted It into Another Device?
- How Do I Resume a Suspended IoT SIM Card or Forward Data Pool?
- How Can I Resume a Suspended SIM Card?
- How Can I Manually Suspend Lost IoT SIM Cards?
- Why Is My SIM Card Still Suspended at the Beginning of a Month?
- Why Can't I Resume an IoT SIM Card?
- Account
- Renewal
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Data Pool
- How Do I Check Whether an Order Is Added to a Data Pool? What Is the Data Limit of a Pooled SIM Card?
- How Can I View the Total Data, Used Data, and Remaining Data of a Data Pool?
- Can I Add an IoT SIM Card to Data Pool After Card Purchase Process?
- Can I Cancel a Forward Data Pool After the Purchase Process?
- Once a Forward Data Pool Is at Its Monthly Data Usage Limit, Will All Its SIM Cards Be Suspended? How Can I Recharge Data?
- Can I Remove Some of the IoT SIM Cards out of a Forward Data Pool?
- Can I Remove a Pooled SIM Card out of the Data Pool so It Does Not Share Data with Other Cards Any More?
- Can I Add SIM Cards of the Same Order to Different Data Pools Separately?
- Can I Only Activate All SIM Cards in a Forward Data Pool at Once?
- How Can I Activate an IoT SIM Card in a Data Pool?
- Why Can't I Add an IoT SIM Card to a Data Pool?
- Why Is My IoT SIM Card Still Suspended After I Added It to a Forward Data Pool?
- General Reference
On this page
Help Center/
Global SIM Link/
FAQs/
Unavailable Status/Suspension/Resumption/
Why Is an IoT SIM Card Inserted into a Device Unavailable? Why Is an In-use IoT SIM Card Suddenly Unavailable or Disconnected Frequently?
Copied.
Why Is an IoT SIM Card Inserted into a Device Unavailable? Why Is an In-use IoT SIM Card Suddenly Unavailable or Disconnected Frequently?
Why Is an IoT SIM Card Inserted into a Device Unavailable?
- Check whether the device is compatible with the network supported by the SIM card.
- China Mobile IoT SIM cards only support 4G networks.
- China Telecom IoT SIM cards only support 4G networks.
- China Unicom IoT SIM cards support both 3G and 4G networks.
- IoT SIM cards of carriers outside the Chinese mainland only support 4G networks.
- You can set APN (case-insensitive) for the device, restart it, and check whether it works properly again.
- For a China Mobile IoT SIM card, set both the name and APN to cmiot.
- For a China Telecom IoT SIM card, set both the name and APN to ctnet.
- For a China Unicom SIM card, set both the name and APN to scuiot.
- Check whether data roaming is enabled.
- Check whether the IoT SIM card is in use on the SIM Cards page. If the card is not activated, manually activate it. For details, see How Do I Activate My IoT SIM Card After I Inserted It into a Device.
- GSL provides IoT SIM cards only for authenticated enterprises. These cards can be used for only IoT devices. Internet of Human (IoH) devices or applications cannot be accessed. IoH devices include mobile phones, tablets, and routers. IoH applications include social networking, shopping, and video applications and websites.
- If you have configured dedicated data for the SIM card, ensure you add correct and complete fixed domain names/IP addresses.
- Only IoT SIM cards of local carriers can be used in Xinjiang, Tibet, Guangxi, Yunnan, and Inner Mongolia. Check whether you have bought correct SIM cards.
Why Is an In-use IoT SIM Card Suddenly Unavailable?
- Check whether the card is suspended on the SIM Cards page. For details, see How Can I View the Cause of IoT SIM Card Suspension.
- See What Can I Do If My IoT SIM Card Cannot Be Used After I Inserted It into Another Device.
- If you have not removed the card from the bound device, restart the device and check whether the card works properly again. This fault could be caused by the interrupted data transmission.
If the problem persists, contact Huawei technical support.
Why Is an In-use IoT SIM Card Disconnected Frequently?
Possible causes:
- The fixed address information is not added for the SIM card configured with dedicated data.
- The network module of the device is incompatible.
Solutions:
- Add a fixed address to the SIM card, wait until it takes affect and restart the device.
- After the card is unbound, replace the network module and perform a test.
Parent topic: Unavailable Status/Suspension/Resumption
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