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I have purchased GSM module
Manufactured Model number – GSM-4GLTEGPS
DigiKey Model Number - 357-GSM-4GLTEGPS-ND
I have inserted SIM card and connects the GSM module antenna, and the module Green LED is blinking once it gets the network signal.
I have connected the GSM module and PC via USB cable provided along with the GSM module.
When I connect the USB cable with PC, the GSM module is rebooting frequently.
Refer the attached video
I was installed the drivers from CD provided along with the GSM module kit, refer the image
Sadly for us, it would be everything, as it world have to go back to the manufacturer as one unit. I’m glad a backup power supply just works, as you can utilize the product today.
It would appear to me that the 7.5W power supply that shipped with the kit is simply inadequate, if using a 12W supply solves the problem.
The wide input range strongly suggests that a switch mode supply is used internally to transform the external supply, in which case the overall power rating of the supply is the important consideration, so long as its voltage is somewhere within the stated limits.
The pictured label (which curiously seems to differ from the datasheet) would suggest that the device’s peak consumption is around 15W. The act of connecting the USB port could be reasonably expected to cause an increase in device activity and related increase in power use, which could easily cause an under-specified external supply to shut down/restart in the manner described.
I also would not expect a device that requires an external supply to draw any significant power from the USB interface. It would appear to me that the response from the supplier is overlooking that.
If using a higher-capacity external supply solves the problem, I would suggest continuing to use it and moving forward with your business.