Sending AT command to Fibocom FM350-GL

Forums › Microsoft Windows › Sending AT command to Fibocom FM350-GL - Windows 11 Pro & PuTTY

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#3174694 22-Dec-2023 21:08

Mehrts:
Linux: I don't get why you need to do this. I work on laptops all the te with 3G/4G/5G modems in them and they just work

Just because you've never had issues with something, doesn't mean that someone else has..

No absolute proof the modem actually supports the correct 5G band / bandplan

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#3174696 22-Dec-2023 21:16

@StevieT Confirm the the modem is seeing / connecting to the 3G/4G network?? If yes then you are wasting your time with these commands the issue is something else!

Edit: Looking up the specs to the modem now

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#3174697 22-Dec-2023 21:25

@StevieT I think you can follow this sequence - you will need to find what COM port number is being exposed and use it as the address in the PuTTY terminal.

Instructions with screenshots: Executing AT-commands under Windows (routerunlock.com)

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#3174698 22-Dec-2023 21:29

@StevieT Reading thru the other thread and top of page 2

https://www.geekzone.co.nz/forums.asp?forumid=39&topicid=311055&page_no=2

You need to try the SIM card out of the laptop in a 5G handset and make 100% sure the number is provisioned for 5G

I suspect you spoke to a staff member in customer service and they just just advised ' Yes ' with out actually checking the core network that the number can access the 5G network

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#3174879 23-Dec-2023 07:39

Linux:

@StevieT Reading thru the other thread and top of page 2

https://www.geekzone.co.nz/forums.asp?forumid=39&topicid=311055&page_no=2

You need to try the SIM card out of the laptop in a 5G handset and make 100% sure the number is provisioned for 5G

I suspect you spoke to a staff member in customer service and they just just advised ' Yes ' with out actually checking the core network that the number can access the 5G network

No. That's just your guess.

Re: connecting to 4G, it can.

Fibocom emailed the following:

"FM350 factory default is automatic in terms of RAT selection (Radio Access Technology aka 4G/5G)
This means when the module is trying to find and connect to a network, it will latch on 5G over 4G if both exists.

Your device likely is in automatic mode if not , you can try using AT commands , AT+COPS=0 should set it to automatic/default mode"

I am ensuring it is in automatic mode by using the AT command.

StevieT

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#3174882 23-Dec-2023 07:41

Linux:

No absolute proof the modem actually supports the correct 5G band / bandplan

I trust your searching for the tech specs for the modem made you discover it supports Spark's 5G network bands for 5G.

If that isn't enough proof for you, what is?

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#3174883 23-Dec-2023 07:41

freitasm:

@StevieT I think you can follow this sequence - you will need to find what COM port number is being exposed and use it as the address in the PuTTY terminal.

Instructions with screenshots: Executing AT-commands under Windows (routerunlock.com)

A much more helpful reply. Thanks, I'll check this out now.

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#3174885 23-Dec-2023 07:45

@StevieT If the modem is connecting to 4G then it will connect to 5G when in a 5G coverage area if the mobile number is provisioned for 5G

As stated before you need to try the SIM card in a 5G handset in a 5G location and make 100% sure the number can access the 5G network in another device

You are making this far more complex with going down this AT command path! You can keep wasting peoples time or do some very basic fault checking!

SparkNZ does provision 5G to a number until the SIM card is put in an approved 5G device! This is why 5G is manually provisioned quite often by SparkNZ staff here on Geekzone to mobile numbers

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#3174890 23-Dec-2023 07:55

@StevieT I recommend you message @gajan the mobile number attached to the SIM card and ask them to check if the number is provisioned for 5G

I trust this staff member and if they confirm it is then great

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#3174891 23-Dec-2023 07:57

To try and cut down on the backwards and forwards in this thread, here's a quote from 12 days ago (11 Dec) from the linked thread.

StevieT:

Linux: Ring SparkNZ and ask if 5G is provisioned on the mobile number of the SIM in the laptop

Can say after ringing Spark the number on the SIM can access the 5G network.

Spark do say the SIM is provisioned for 5G, however, @Linux makes a valid point that this can easily be confirmed by sticking it in a 5G phone to double check. It wouldn't be the first time a helpdesk has provided incorrect info, and it should be pretty easy to confirm.

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#3174892 23-Dec-2023 08:00

Linux:

@StevieT I recommend you message @gajan the mobile number attached to the SIM card and ask them to check if the number is provisioned for 5G

I trust this staff member and if they confirm it is then great

Thanks, I'll double check with @gajan. But it wouldn't be my fault if given the wrong information from Spark's help desk (most likely lead to a complaint).

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#3174894 23-Dec-2023 08:14

The countless messages I got here on Geekzone from customers that devices could not access the VodafoneNZ 4G network

Customers that were told by front line staff Yes your mobile number can access the 4G network so your handset must be faulty or you need a new SIM card

I would check the HLR and 4G / LTE was not provisioned on the mobile number was always the issue

Edit: Or the handset was using the incorrect APN

StevieT

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#3174899 23-Dec-2023 08:29

I've sent the private message and will post the response later on.

I've gone a bit further also and asked to ensure the IMEI of the device is not restricted to accessing the 5G network, as Fibocom also did email:

"There are however multiple different reasons that may cause this outside of what your vendor suggests

1. The Operator did not register any 5G capabilities on the SIM due to a unrecognized IMEI

Many carriers restrict what device can get on their 5G network and if they see an IMEI that is not registered with them, they don’t provide 5G service
You will have to contact the carrier to resolve this kind of issue"

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#3174900 23-Dec-2023 08:32

Linux:

The countless messages I got here on Geekzone from customers that devices could not access the VodafoneNZ 4G network

Did you use to work for Vodafone?

Linux

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#3174903 23-Dec-2023 08:35

StevieT:
Linux:

The countless messages I got here on Geekzone from customers that devices could not access the VodafoneNZ 4G network

Did you use to work for Vodafone?

17+ years

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