on my hardware design, one USB Interface with external connector is only for flash the modem module, i have connected my modem module EC25-C as describted in LTE Standard Module Series → EC25 Hardware Design, in chapter 3.10. USB Interface. Connected is USB_DP 69 / USB_DM 70 and GND 72, USB_VBUS 71 is not conected Power supply come from Board. The current FW is EC25EFAR08A03M4G_20.001.20.001. Please can you send me the USB Driver and the Flash tool for Windows.
I send it to you by chat box,pls chk.