I am attempting to upgrade the firmware on the HL6528RD module over usb to the computer using
which I downloaded from the sierra wireless website. I have a normal USB cable connected between a USB port on my computer and the USB port on my custom board. This usb port is connected to the USB pins on the module as described in the product technical specification.
I have installed the drivers by running InstallDriver.exe in the folder MS_USB_ComPort_Driver_exe_v1.1032.1
which I downloaded from sierra wireless.
when I run the firmware upgrader I get the following output:
Use Port: USB
Downloading Firmware to Flash Memory ...
DA Initialization is OK.
Creating ROM Entries Success
Loading ROM files Success.
Please reboot your module...
Firmware Download Failed.
Return code : 106
Press any key to continue . . .
Also I do not get anything showing up in device manager. When I plug the device in a device not recognised pop up appears and quickly vanishes.
Do I need to send a UART command to switch the device to USB mode? is there a special power up sequence that is required to get the device into USB mode?
Thanks for your help,