Hello, I'm learning Modem Manager, but looking at the output that you provided it appears that the modem is registered on Vodafone (current), not DT.
*$ mmcli -m 0 --3gpp-scan --timeout=120* * ---------------------* * 3GPP scan | networks: 26203 - o2 - de (lte, forbidden)* * | 26202 - Vodafone (lte, current)* * | 26201 - TDG (lte, available)* You might have to issue a command to push the modem to DT? --3gpp-register-in-operator=MCCMNC ?? Are you certain the IMSI is not providing access/roaming to Vodafone? -- Scott C. Lemon Principal IoT Solutions Engineer <https://www.Twilio.com> Mobile: +1 (801) 336-4476 Email: sle...@twilio.com On Mon, May 31, 2021 at 3:21 AM Andreas Hartmann <har...@7x.de> wrote: > Hello, > > > I'm looking for guidance diagnosing what is wrong with the Quectel EG25 > modem in my PinePhone. I am aware that the modem works for pretty much > all people, however there seem to be some exceptions to this, including > me. I have tried several Operating Systems (Manjaro, postmarket OS, > Fedora, mobian) but with none of these I had any success so far. > Currently I'm tempted to believe that the hardware in my phone isn't > entirely functional, but I wanted to make sure of that before randomly > replacing parts. > > The issue I see is that the modem is recognized by the OS, and I can > communicate with it through ModemManager, too. But it cannot connect to > my carrier. I can neither make phone calls, nor receive SMS or setup a > mobile data connection. However, the modem clearly shows that is has a > signal reception, and I can confirm that a signal is present from > another Android phone. I have suspected the SIM card, but when I insert > it into an Android device it works just fine. Just to make sure I have > even removed the SIM PIN, but that hasn't changed the situation (apart > from some added convenience for me). I live in Germany, and the SIM is > registered with "Deutsche Telekom". > > I can confirm that a 3GPP scan yields useful results: > > ``` > $ mmcli -m 0 --3gpp-scan --timeout=120 > --------------------- > 3GPP scan | networks: 26203 - o2 - de (lte, forbidden) > | 26202 - Vodafone (lte, current) > | 26201 - TDG (lte, available) > ``` > > As my operator is "Deutsche Telekom", the correct MCC/MNC is 26201, but > mmcli shows that modem attempts to register with 26202. I seemingly > cannot override this: > > ``` > $ mmcli -m 0 --simple-connect="apn=internet.t-mobile,user=t- > mobile,password=tm" --timeout=120 > error: couldn't connect the modem: > 'GDBus.Error:org.freedesktop.ModemManager1.Error.MobileEquipment.Networ > kTimeout: Network timeout' > ``` > > I attempted to define an initial bearer with `mmcli -m 0 --3gpp-set- > initial-eps-bearer-settings`, but that didn't change the situation. > The simple-connect doesn't work either, even if I explicitly specify > the operator ID to use. > > Interestingly the behavior is pretty consistent. It happened to me with > the stock firmware that the Pinephone Modem (Manjaro edition) shipped > with in December/2020, it persisted after I had updated to the most > recent modem firmware available February/2021, and it's still there > after flashing biktorgjs custom firmware [1]. > > I have tried to use various APN settings, including: > > 1. The one mentioned in the Pine64 wiki [2] > 2. APN "internet.telekom", which is available on my Android device > 3. APN "internet.t-d1.de", which my Android device actually uses > > I don't know whether this is relevant, but the SIM is part of a > multisim contract (Same phone number, same data plan for all SIMs). > > Curiously, recently I could accept a phone call on the Pinephone and > talk to the other person. However this was a unique event and I > couldn't reproduce it ever since. I can neither make calls, nor use > mobile data. > > I'm running out of ideas as to what may cause such a behavior. I'd be > thankful for any hints on what else to try, or possibly a diagnosis on > whether the Modem is actually broken... Thank you in advance! > > > Cheers, > Andreas Hartmann > > > > [1]: https://github.com/Biktorgj/pinephone_modem_sdk > [2]: > https://wiki.pine64.org/wiki/PinePhone_APN_Settings#Telekom_.28Germany.29 > _______________________________________________ > ModemManager-devel mailing list > ModemManager-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel >
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