EM20-G Firmware update

Related to Modems, Hotspots, Dongles ONLY
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saw2645
Posts: 24
Joined: Mon Oct 29, 2018 12:32 pm

EM20-G Firmware update

Post by saw2645 » Sat Mar 07, 2020 4:42 pm

Looking at trouble shooting my EM20-G frequent disconnects. I have replaced my aux power cable to my USB adapter, and plugged in to a separate power supply away from my R7800 router, maybe that will help.

In addition, I have located the Quectel Qflash app and firmware. But I’m having trouble with accessing the comm port.

I don’t know if you can point me in the right direction. I’m using the https://ltefix.com/shop/pcie-m-2/m-2-ng ... -card-slot. On a windows 10 laptop. I’m connecting the usb cable directly to the adapter and the laptop usb3. I can see the EM20-G in my devices, it’s using the generic adapter driver, I can’t find any drivers for the EM20-G. I can open the Qflash app, load the firehose, but I’m having no luck with the usb-dm com port, I only have com ports 3, 4 and 5 available, and none of them work. Thanks for your time.

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BillA
Posts: 458
Joined: Sun Dec 01, 2019 6:46 pm
Location: USA

Re: EM20-G Firmware update

Post by BillA » Thu Mar 26, 2020 5:10 am

saw2645 wrote:
Sat Mar 07, 2020 4:42 pm
Looking at trouble shooting my EM20-G frequent disconnects. I have replaced my aux power cable to my USB adapter, and plugged in to a separate power supply away from my R7800 router, maybe that will help.

In addition, I have located the Quectel Qflash app and firmware. But I’m having trouble with accessing the comm port.

I don’t know if you can point me in the right direction. I’m using the https://ltefix.com/shop/pcie-m-2/m-2-ng ... -card-slot. On a windows 10 laptop. I’m connecting the usb cable directly to the adapter and the laptop usb3. I can see the EM20-G in my devices, it’s using the generic adapter driver, I can’t find any drivers for the EM20-G. I can open the Qflash app, load the firehose, but I’m having no luck with the usb-dm com port, I only have com ports 3, 4 and 5 available, and none of them work. Thanks for your time.

The most common problem is due to the USB3 port.
Try connecting the modem to the pc via a powered USB2 hub.
You can tell if it's USB2 hub by the cable connector's tip is not supposed to be blue.

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