[Ovmsdev] No GSM connection

Mon Apr 17 16:42:01 HKT 2023

Hi Mark,

thanx for your response.

I orderded a new SIM card today. The one I use is 8 years old (wow, I'm
using OVMS since 8 years now ...). 

Another esotheric shot, but all other parameters can be excluded I
think.

Regards

Chris

Am Freitag, dem 14.04.2023 um 11:22 +0800 schrieb Mark Webb-Johnson:
> Chris,
> 
> The modem power on/off is not instance. Think of power off like
> shutdown on a computer (with the shutdown taking a minute or so), and
> power on like turning on your computer (with the actual boot sequence
> taking a minute or so). You can see this with ‘cellular status’ and
> the states ‘powering on’, ‘powering off’, etc.
> 
> The reason I mention that is that I suspect the reason you don’t see
> ICCID is the modem is not fully powered on and boot up complete.
> 
> I suggest you reboot the module. Then watch ‘cellular status’ to see
> the modem power on. When fully on, check the ICCID and hopefully it
> will be there. If not, then there is some problem reading the SIM
> (but then seeing a network registration status would not make sense).
> 
> As to the registration searching, that is pretty low level and
> controlled by the modem. It simply can’t find a network to connect
> to. Are you certain you still have 2G coverage there?
> 
> > https://www.congstar.de/hilfe-service/netzabdeckung/
> 
> Regards, Mark.
> 
> > On 13 Apr 2023, at 2:30 PM, Chris van der Meijden
> > <chris at arachnon.de> wrote:
> > 
> > For the second time within a month I have no GSM connection and I'm
> > not able to reestablish the connection.
> > 
> > The SIM card is "Congstar" Prepaid (with enough money on the card).
> > The Network is 2G and connections are normally without any problems
> > here.
> > 
> > What I can see, is that I have a signal around -70 dBm, but can't
> > get a network registration:
> > 
> > Cellular Modem
> > 
> > MODEM Status
> > Model: SIM5360
> > Network Registration: Searching
> > Provider:
> > Signal: -69 dBm
> > Mode:
> > State: NetWait
> > Mux: Status up
> > PPP: Not running
> > GPS: Not running
> > 
> > I can't get an ICCID
> > 
> > Cellular modem configuration
> > 
> > SIM ICCID: (power cellular modem on to read) Power mode of cellular
> > is now on
> > 
> > This is the log output
> > 
> > log level debug cellular
> > 
> > D (455339) cellular: mux-tx #3: AT+CREG?;+CCLK?;+CSQ
> > D (455349) cellular: mux-rx-line #3: AT+CREG?;+CCLK?;+CSQ
> > D (455359) cellular: mux-rx-line #3: +CREG: 0,2
> > D (455359) cellular: mux-rx-line #3: +CCLK: "80/01/06,00:07:36+08"
> > D (455359) cellular: mux-rx-line #3: +CSQ: 22,99
> > D (455359) cellular: mux-rx-line #3: OK
> > D (456339) cellular: mux-tx #3: AT+CPSI?
> > D (456349) cellular: mux-rx-line #3: AT+CPSI?
> > D (456349) cellular: mux-rx-line #3: +CPSI: NO SERVICE,Online
> > D (456349) cellular: mux-rx-line #3: OK
> > D (457339) cellular: mux-tx #3: AT+COPS?
> > D (457349) cellular: mux-rx-line #3: AT+COPS?
> > D (457349) cellular: mux-rx-line #3: ERROR
> > 
> > and this is the Info output on the console
> > 
> > I (1444379) gsm-mux: Start MUX
> > I (1444449) gsm-mux: Channel #0 is open
> > I (1444459) gsm-mux: Channel #1 is open
> > I (1444459) gsm-mux: Channel #2 is open
> > I (1444469) gsm-mux: Channel #3 is open
> > I (1444479) gsm-mux: Channel #4 is open
> > I (1444789) webserver: HTTP POST /api/execute
> > I (1444799) webcommand: HttpCommandStream[0x3f8ba0b4]: 3478800
> > bytes free, executing: cellular status
> > I (1445339) cellular: State: Enter NetWait state
> > I (1445599) webserver: HTTP POST /api/execute
> > I (1445599) webcommand: HttpCommandStream[0x3f8ba0b4]: 3478584
> > bytes free, executing: cellular status
> > I (1455359) cellular: Network Registration status: Searching
> > I (1455359) cellular: Signal Quality is: 22 (-69 dBm)
> > I (1461919) webserver: HTTP GET /shell
> > I (1475359) cellular: Signal Quality is: 18 (-77 dBm)
> > I (1485359) cellular: Signal Quality is: 21 (-71 dBm)
> > 
> > The live events show this
> > 
> > Live Events
> > 
> > [08:02:08]system.modem.poweringon
> > [08:02:08]egpio.output.0.high
> > [08:02:10]egpio.output.0.low
> > [08:02:15]system.modem.installed
> > [08:02:15]system.modem.poweredon
> > [08:02:35]system.modem.muxstart
> > [08:02:36]system.modem.netwait
> > 
> > And this is my module information
> > 
> > Module
> > 
> > Last boot was 1719 second(s) ago
> > Time at boot: 2023-04-13 07:35:21 CEST
> > This is reset #0 since last power cycle
> > Detected boot reason: PowerOn (16/14)
> > Reset reason: Unknown/unset (0)
> > Crash counters: 0 total, 0 early
> > Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/1; MODEM SIM5360
> > Firmware: 3.3.003-413-ge0a8e914/ota_0/main (build idf v3.3.4-849-
> > g6e214dc33 Apr 12 2023 20:20:24)
> > 
> > Last time this happened I was able to get the connection back by
> > performing some esotheric button pressing on "Start Modem", "Stop
> > Modem" and "Power cellular Modem on" in the WebUI, but now it does
> > not help.
> > 
> > I compiled the newest version yesterday and I did some reboots of
> > the module and I even pulled the fuse to completely power off my
> > OVMS in the car, but no success.
> > 
> > Is there anything I can do to do some more troubleshooting? Any
> > thoughts on possible causes?
> > 
> > Thanx
> > 
> > Regards
> > 
> > Chris
> > _______________________________________________
> > OvmsDev mailing list
> > OvmsDev at lists.openvehicles.com
> > http://lists.openvehicles.com/mailman/listinfo/ovmsdev
> 
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