Unanswered Questions in gsm

Hello,

I'm currently running an RPi 4b with Venus OS 2.93. Currently I'm using the SIM7600G Hat together with a Telekom Sim Card very well via LTE/4G. Because of the Telekom contract also includes 5G, I wondered if there is already some support for 5G in Venus OS?

There is already a SIM8200 hat for RPi, which supports 5G, even though it's quite expensive :-)

I thought about just buying it and give it a try, but I could imagine, that there has to be some updates of the 5G AT-commands.

Is there already something available or if not something in develop?

Thank you!

i have a victron GX GSM 4G LTE setup in Australia with a Telstra SIM. it worked flawlessley for 9 months however it has now lost connection permanently after losing in february also. we have tried everything from new sim cards, to reboots, to checking all settings. can anyone help please as would love to get this thing working again as spent 3 hours today trying to work out what is going on. im wondering if a firmware update did something as it seems to have been booted off network on the 18th of february and also on the 18th of april.

Is there a way to read SMS send to the SIM card in GX GSM? I need to access 2FA code sent by mobile provider to that number when I'm logging into thier billing/management portal and right now I need to remove the sim card and insert it into a phone, which is bit painful process

Good day

am i missing something the GSM modem was working fine up to 14days ago sim card have data all lights are blinking on GSM when i unplug the usb on cerbo noting change it is as the cerbo is not picking up the gsm module

and it was working correctly for sum time??

Hi!

I have an issue similiar to GSM modem offline 3.

We are running 8 off-grid systems (Multiplus + Cerbo GX) in Malawi, with more coming. Comms is through the Victron 4G GSM dongle using Airtel (mostly) or TNM sims. On commissioning, all systems were online. However, during the first couple of days, five systems dropped (and remained) offline while three have remained online.

The "worst" example dropped offline 12 days ago, never to reappear. None of the systems that have been more than a few minutes offline have recovered. At the same time, we have other GSM based equipment onsite that has remained online. Some sites are clearly far off grid, but weak signal locations have extra antennas. Connection drop does not seem to only his weak connection sites. It takes between an hour and a day to reach these sites from the capital, hence we need to go prepared.

We have been to the first (closest) site to assess. Site has good Airtel coverage, but we first tried TNM, and the GSM/Cerbo produced error 153 (Routing error). With an Airtel sim it complained about APN for a few minutes before going online with good reception. (3 bars), allowing remote VRM login. After leaving the site, the connection dropped within an hour, never to recover.

Relevant settings:

- Cerbo GX Firmware version v2.70~5-large-18

- APN: set to “Use Default”. Required APN is “internet” for both Malawi carriers. Since we had access, I do not consider this the root cause, but we are happy to change this. We have set this to "internet" for one of the working connections, this works too.

- Settings->VRM-> «Reboot device on no contact with VRM» was not enabled at first. We have instructed that new installations should enable this feature. However, this is in my opinion a way around the problem rather than a real repair.

- FW update set to "Check only" to avoid uncontrolled updates and data use.

- Roaming is off. Will enabling this give us greater chances of remaining online?

Is there anything Victron or us can do here? Could there be a specific airtel/TNM Malawi<-->Victron issue that prevents the cerbo to reconnect if connection drops? Any advice would be good before we start driving around the country.

Having Difficulty to get the unit to recognize that a GSM device is connected to it. ( all menu settings appear to be correct ) In addition it does not recognize the usb stick with the new version of software 2.60 however it sees a WIFi nano transmitter and can connect via a hotspot device.

Any suggestions welcome

Have a Gx Venus Installed. There is no Internet on site for system to connect to, so we installed an GX GSM unit. It worked well for a while, and then suddenly stopped logging data. We then investigated. Found Venus unresponsive, and could not connect directly to unit. As soon as we disconnected the GSM Unit, we could connect directly. Now it seems if I connect any GSM unit to any Venus or Cerbo, we lose all connection to unit in operation, this includes direct contact via WiFi (built into Venus) and via internet. Sim connection is good to provider. Have reset Venus network manually and via settings. Switched all off and started from beginning again. Nothing but disconnecting the gsm unit works. And we need the connection as site is remote. Any Ideas as to what to solve or correct the problem?

Hi,
has someone tested to plug a GSM "surfstick" into a GX device (CCGX) for a mobile internet connection?

We have a customer with 3 houseboats each with a EasySolar 24/3000 with a CCGX.
For the internet connection (and GPS) we installed the GX GSM modem.
GPS is working fine but as soon as we insert the SIM card the modem disappears every few seconds.
I tested the exact same devices in our workshop and everything works fine. Send it back to the customer doesn't work...

A few weeks ago I was at the marina and tried a few things(new GSM, new CCGX) but it still doesn't work and I'm out of ideas.

So now we now want to use a 3rd-party GMS modem (with LAN) or a simple surfstick.

Edit:
I know you can connect an Android smartphone via USB and activate USB-Tethering ans the GX-device will have a working internet connection.