Thanks for the ZIP Vianney but I’m not having any luck getting the HL7688 to accept the DWL files.
I’m not very familiar with the process to bear with me. I’ve been using the below AT commands to try uploading the firmware to the unit. The process goes through without any ERRORs but after the update when I check the firmware version on the module, I can see it hasn’t been updated. I’ve tried with both “hl-fota-full_HL76XX_from_A.2.10.dwl” and “revhl-fota-full_HL76XX_from_A.2.10.dwl” with the same result.
AT+WDSI=4095 //enable +WDSI indication
AT+WDSD=932424 //size of FW.dwl file
//Send xx.dwl with HyperTerminal->SendFile->“1K Xmodem” protocol
+WDSI: 3 // downloaded, waiting to install
AT+WDSR=4 //install the package
I also notice that the DWL files in the link you sent are very small, around 50KB, where the DWL available on the website for 2.15 is 19MB.
Would there happen to be a self-contained EXE installer for this firmware available to eliminate any mistakes on my part?