Need help with Em20-g

[punkguy00017]

I have updated the firmware to 8 also downgraded the firmware to 6. Every time I run the modem in a we826 without the simcard inserted it recognized the modem. If I insert a simcard and reboot router, it cant open usb2. I have modem set to mbim.

[punkguy00017]

Does anyone know the ssh commands to activate usb2?

[Didneywhorl]

That's a new one to me. I've never had to do that.

Does the modem show up in the debug screen? (towards the bottom, not the commands screen)

You may have a bad SIM, or adapter, that is shorting out the SIM pins, which shorts can short out the modem. Are you using the adapters SIM slot or the routers SIM slot? Both can be used, you may try another adapter, or the other slot.

[punkguy00017]

Using the sim in the router. Also modem shows up but can't connect. Yes the modem shows at the bottom

[Didneywhorl]

So it's showing up in the network status page as well?

Where is it saying it can't connect to ttyUSB2?

[punkguy00017]

Yes it's showing in the network status page also it's showing unable to connect when there isn't a sim card installed as well.

[punkguy00017]

Says it in the debug page as well as sometimes when it can't detect the modem. I gotta continue to hard resetting it in order to have it detect the modem

[Didneywhorl]

Which firmware version do you have on the we826?

Helluva monster modem to use in that router, but :shrug:

[punkguy00017]

Lol. I agree but I'm just using it for testing purposes since I have a 1608 with an em20-g and wanting to put this other 20g in a wg3526 that is currently running an ec 25

[punkguy00017]

Here is what the modem is showing

[punkguy00017]

Dunno if I said b UT the modem being detected is intermittent

[punkguy00017]

Also in the picture the modem failed to connect cause there isn't a sim

[Didneywhorl]

Looks fine, except its not reading the SIM card.

[gscheb]

Recently on a MC7455 it wouldn't read the Sim card. Literally just removed sim card and put it back in and it started working.

[punkguy00017]

Tried it with two diff sim

[Didneywhorl]

Did you try putting the SIM in the adapter?

[punkguy00017]

Alright got it working here's what I did, downgraded firmware to ver6 after the downgrade ran AT+QPRTPARA=3 in the Huawei terminal is in the at terminal. Then Switched the modem into a wg3526 router put in sim turned on and prayed lol it's now working fine

[punkguy00017]

Dunno if I reset the modem if it'll start again with the can't detect dev/ttyusb2 again

[punkguy00017]

ok so i took the plunge and restarted the router and it connected flawlessly. bought this modem off of ebay for 30 bucks. guy selling stated that it just stopped working all of the sudden so..... i guess i got a great deal.

[Didneywhorl]

Dude, you got a steal!

Those aren't made anymore, and they are a beast. Last ones I sold for over $300 each.

[punkguy00017]

Yes for sure took me three days to get it working

[punkguy00017]

Update after almost a year of using still working flawless only thing I have noticed is if I unplug it and then reconnect it it can't detect the modem. If I wait roughly 20 mins and then plug it in it detects the modem and connects no issues any of the gurus here know why it does this?

[Didneywhorl]

Super odd. No telling. They didn't seem to build them to be very durable. Might be an chip oddity that does that.