SIM card not registered Spitz GL-X750

Toxo · 2021-06-20T19:09:59.464Z

Hello.
My X750 Spitz shows “Sim Card not registered” after Firmware Upgrade to 3.205 an also after revert to firmware from 12/20.
Provider is EPLUS from Germany. In a Huawei Smartphone the Sim works without problems.
the simcard runs on Spitz one time without problems (the spitz is new), after firmware upgrade it dont work anymore.
I have tried to AT command AT+QPRTPARA=3 with no luck.

Here are the commands searched in another thread from /dev/tty/USB2:

ATI
Quectel
EP06
Revision: EP06ELAR03A08M4G

OK

AT+CPIN?
+CPIN: READY

OK

AT+QNWINFO
+QNWINFO: No Service

OK

AT+QCFG="band"
+QCFG: "band",0x8d0,0x1a0880800d5,0x0

OK

AT+QCFG="nwscanmode"
+QCFG: "nwscanmode",0

OK

AT+COPS=?
AT+COPS=?

AT+CREG=?
+CREG: (0-2)

OK

AT+QCFG=?
+QCFG: "gprsattach",(0,1)
+QCFG: "nwscanmode",(0-8),(0,1)
+QCFG: "servicedomain",(0,1,2),(0,1)
+QCFG: "roamservice",(1,2,255),(0,1)
+QCFG: "band",(0-200),(0-7FFFFFFFFFFFFFFF),(0-7FFFFFFFFFFFFFFF),(0,1)
+QCFG: "rrc",(0-4)
+QCFG: "msc",(0-2)
+QCFG: "sgsn",(0-2)
+QCFG: "hsdpacat",(6,8,10-24)
+QCFG: "hsupacat",(5,6)
+QCFG: "pdp/duplicatechk",(0,1)
+QCFG: "ledmode",(0,1)
+QCFG: "usbid",<vid>,<pid>
+QCFG: "usbee",<enable>
+QCFG: "usbnet",<0-2>
+QCFG: "usbcfg",<vid>,<pid>,<diag>,<nmea>,<at_port>,<modem>,<rmnet>,<adb>,<uac>
+QCFG: "urc/ri/ring",("off","pulse","always","auto","wave"),(1-2000),(1-10000),(1-10000),("off","on"),(1-5)
+QCFG: "urc/ri/smsincoming",("off","pulse","always"),(1-2000),(1-5)
+QCFG: "urc/ri/other",("off","pulse"),(1-2000),(1-5)
+QCFG: "risignaltype",("respective","physical")
+QCFG: "urc/delay",(0,1)
+QCFG: "agps/string",(0,1)
+QCFG: "ltesms/format"[,(0,1)]
+QCFG: "ModemRstLevel",(0,1)
+QCFG: "ApRstLevel",(0,1)
+QCFG: "noauthcheck",(0,1)
+QCFG: "nwscanmodeex",(1-63)
+QCFG:"ims",(0-2)
+QCFG: "pcmclk",(0,1)
+QCFG: "tone/incoming",(0,2)
+QCFG: "sim/recovery",(3-300),(0,5-300),(0,300)
+QCFG: "urc/cache",(0,1)
+QCFG: "thermal/modem"[,<level>,<trig>,<clr>]
+QCFG: "thermal/limit_rates"[,<enable>]
+QCFG: "lte/bandprior",(1-43),(1-43),(1-43)
+QCFG: "vts/async",(0,1)
+QCFG: "urc/ri/pin",("uart_ri","uart_dcd")
+QCFG: "stkauto/setupmenutr",(0,1)
+QCFG: "imsreg/iptype",(0,1)
+QCFG: "sim/onchip",(0,1)
+QCFG: "powerup/regctl",(0,1)
+QCFG: "volte_disable",(0,1)
+QCFG: "sim/clk_freq",(0,1)
+QCFG: "attach/ims",(0,1)
+QCFG: "diversity/config",<0-5>,<0-7>
+QCFG: "fast/poweroff",(0,1)
+QCFG: "sarcfg",<RAT>,<band>,<max_power>,<row_grads>
+QCFG: "redir/3gtolte",(0,1)
+QCFG: "256qam",(0,1)
+QCFG: "Feature_Switch_Flag",(0,1),(0x01 -- 0xFFFFFFFF)
+QCFG: "estk/send_sms",(0,1)
+QCFG: "dbgctl",(0,1,2)
+QCFG: "poaccept",(0,1)
+QCFG: "qcautoconnect",(0,1)
+QCFG: "urc/smd",(0-4),(0,1)
+QCFG: "rwp",<0,1>

OK

AT+CREG?
+CREG: 0,2

OK


AT+CEREG?
+CEREG: 0,2

OK

alzhao · 2021-06-22T09:40:36.684Z

First you should check if apn is correct. If not correct the APN.

Then, it is suggested to use ttyUSB3 as device to connect.

Check the screenshot in this post North American Carriers, ATT, Verizon, Cricket, T-Mobile Setup and Update 2021

If you have filled the correct info and still SIM card not registered, do a modem reset from the UI.

Toxo · 2021-06-22T18:24:47.467Z

it cannot work without attached antennas
“4G” is written on the antennas
works flawlessly now.

thank you

alzhao · 2021-06-23T09:47:22.392Z

Yes. Have to have antennas connected.