What to do if Quectel LC76G module is unable to search for satellite signals?
If the Quectel Motherboard module is unable to search for satellite signals, test the module in an open-sky environment, especially if there is no transponder indoors.
How to fix 'Unable to find COM port' for Quectel LC76G?
If you are unable to find the COM port for your Quectel Motherboard in the Device Manager when the EVB is connected to your PC with a USB cable, ensure that the EVB communication interface is properly connected to the PC and that the CP210x Driver has been installed successfully.
What to do if Quectel LC76G module is unable to upgrade?
If the Quectel Motherboard module fails to upgrade, first verify that the module is in normal operating mode. Then, check that the downloaded firmware is correct and confirm that the correct COM port has been selected.
Why is Quectel Motherboard communication interface not outputting any messages?
If the Quectel Motherboard communication interface is not outputting any messages or commands, check that the power supply indication LED on the EVB is illuminated. Also, verify that the jumper cap(s) is(/are) connected correctly. Ensure that the module's power supply is normal.
General| Brand | Quectel |
|---|---|
| Model | LC76G Series |
| Category | Motherboard |
| Language | English |
Terms for confidentiality, usage, and copyright of provided materials.
Policies on trademarks, privacy, and limitations of liability.
Ensure product use conforms to local safety and environmental regulations.
Avoid flammable materials, ensure stable power, and follow ESD protection.
Contains Title, Subtitle, Document Type, and Document Status.
Lists document versions, dates, and descriptions of changes.
Explains the meaning of the asterisk (*) symbol used in the document.
Lists the components included in the Evaluation Board (EVB) kit.
Instructions on how to connect the EVB and its components, including the antenna.
Provides a visual overview of the EVB's top side with labeled components.
Details the functions, interfaces, and LED indicators on the EVB.
Describes the function and I/O of each pin on the J402 test point connector.
Continues the detailed description of J402 test points and their functions.
Steps to test the module using the QGNSS software tool.
Explains the GNSS information displayed in the QGNSS interface, like C/No and satellite status.
Step-by-step guide on how to upgrade the module's firmware using the QGNSS tool.
Shows the success indicator for the firmware upgrading process.
Guidelines for proper installation of the GNSS antenna for optimal reception.
Recommendations for securely installing the EVB, especially during dynamic testing.
Describes the four stages for measuring module power consumption.
Details how to measure power consumption using an ammeter or power consumption meter.
Steps for measuring V_BCKP power consumption using ammeter and power meter.
Illustrates the power supply and signal flow within the EVB.
Troubleshooting steps for issues with COM port detection in Device Manager.
Steps to resolve issues where the communication interface is unresponsive.
Advice for troubleshooting satellite signal acquisition problems.
Steps to resolve firmware upgrade failures.
Ensure consistent test environments and note parameter variability from chip suppliers.
Verify measurement methods and be cautious with momentary data interpretation.
Advise using the latest QGNSS Tool version for optimal performance.
Lists other relevant Quectel documents for further information.
Defines common abbreviations and terms used in the document.
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