LTE Modem Doesn't Work

Notsee · September 16, 2023, 8:24pm

Oh, sorry, I thought you told me to input an "IP"

and it says ERROR

AT+CGDCONT=1,"IP","internet",""
ERROR

Notsee · September 16, 2023, 8:26pm

Sorry, nevermind me, it says OK, I just forgot that I put dead SIM

I get the APN from my operator website
https://care.indosatooredoo.com/SelfHelpPortal/s/article/Pengaturan-APN?language=en_US

Type [C-a] [C-h] to see available commands
Terminal ready
AT+CGDCONT=1,"IP","internet",""
OK

Notsee · September 16, 2023, 8:27pm

But the second command says ERROR

root@OpenWrt:~# picocom /dev/ttyUSB2
picocom v3.1

port is        : /dev/ttyUSB2
flowcontrol    : none
baudrate is    : 9600
parity is      : none
databits are   : 8
stopbits are   : 1
escape is      : C-a
local echo is  : no
noinit is      : no
noreset is     : no
hangup is      : no
nolock is      : no
send_cmd is    : sz -vv
receive_cmd is : rz -vv -E
imap is        :
omap is        :
emap is        : crcrlf,delbs,
logfile is     : none
initstring     : none
exit_after is  : not set
exit is        : no

Type [C-a] [C-h] to see available commands
Terminal ready
AT+CGDCONT=1,"IP","internet",""
OK
AT+GTRNDIS=1,1
ERROR

Notsee · September 16, 2023, 8:29pm

It ran OK
but here is the output anyway

Type [C-a] [C-h] to see available commands
Terminal ready
AT+CGDCONT=1,"IP","internet",""
OK
AT+GTRNDIS=1,1
ERROR
AT+CGDCONT?
+CGDCONT: 0,"IP","internet","0.0.0.0",0,0,0,0,0,0
+CGDCONT: 1,"IP","internet","0.0.0.0",0,0,0,0,0,0

OK

AndrewZ · September 16, 2023, 8:30pm

I see...
Check AT+GTRNDIS?

Notsee · September 16, 2023, 8:31pm

Here is the output

AT+GTRNDIS?
+GTRNDIS: 0

OK

AndrewZ · September 16, 2023, 8:32pm

Let's try to use context 0:
AT+GTRNDIS=1,0

Notsee · September 16, 2023, 8:33pm

Still ERROR

AT+GTRNDIS=1,0
ERROR

AndrewZ · September 16, 2023, 8:39pm

I suppose you need to be registered on the network for this command to work.
Check with AT+COPS?

Notsee · September 16, 2023, 8:41pm

I've tested the SIM on my phone, and it's works, so I don't know what you mean by registered on the network?
It's also work in the stock router firmware

and here's the output

AT+COPS?
+COPS: 0

OK

AndrewZ · September 16, 2023, 8:50pm

Probably need this:

AT+COPS=3,0
AT+COPS?

You need to make sure the modem is registered on the mobile network.
Try also AT+GTCCINFO?

Notsee · September 16, 2023, 8:51pm

Here's the output, the first command returned ERROR tho, but the others seems promising

AT+COPS=3,0
ERROR
AT+COPS?
+COPS: 0

OK
AT+GTCCINFO?
+GTCCINFO:

GSM neighbor cell:
2,1,510,10,1351,4949,6,30,46,70, , ,46,137
2,1,510,10,1351,A3C3,9,7,44,64, , ,44,135
2,1,510,10,1351,494C,775,1,19,43, , ,34,128
2,1,510,10,1351,494A,1,255,46,70, , ,34,128
2,1,510,10,1351,4987,8,27,34,34, , ,34,128
2,1,510,10,1351,247E,3,55,32,32, , ,32,126
2,1,510,10,1351,54B1,2,12,30,30, , ,30,125

LTE neighbor cell:
2,4,510,10,ED1,305970C,3500,378, , ,61,28
2,4,510,10,ED1,305970B,1850,237, , ,49,23
2,4,510,10,ED1,7B18A21,500,116, , ,35,18
2,4,510,10,ED1,308A00D,500,159, , ,32,10
2,4,510,10,ED1,3058221,500,299, , ,31,17

OK

AndrewZ · September 16, 2023, 8:56pm

It should show serving cell as well, but it shows only neighbor cell now.
Not sure it is applicable to this modem but try AT+GTSCANSTAT first and then AT+GTCCINFO? again.

Notsee · September 16, 2023, 8:57pm

it returned ERROR

AT+GTSCANSTAT
ERROR
AT+GTCCINFO?
+GTCCINFO:

GSM neighbor cell:
2,1,510,10,1351,4949,6,30,55,79, , ,55,144
2,1,510,10,1351,322B,9,255,54,78, , ,45,136
2,1,510,10,1351,494A,1,62,37,61, , ,37,130
2,1,510,10,1351,494C,775,1,17,41, , ,32,126
2,1,510,10,1351,247E,3,255,54,78, , ,31,125
2,1,510,10,1351,54B1,2,12,30,30, , ,30,125
2,1,510,10,1351,61D3,4,255,54,78, , ,28,123

LTE neighbor cell:
2,4,510,10,ED1,305970C,3500,378, , ,62,28
2,4,510,10,ED1,305970B,1850,237, , ,47,26
2,4,510,10,ED1,308A00D,500,159, , ,34,21
2,4,510,10,ED1,308A062,500,159, , ,34,21

OK

AndrewZ · September 16, 2023, 9:00pm

Ok, to the basics:

AT+CREG?
AT+CEREG?

Notsee · September 16, 2023, 9:00pm

No error

AT+CREG?
+CREG: 0,0

OK
AT+CEREG?
+CEREG: 0,2

OK

AndrewZ · September 16, 2023, 9:04pm

It is not registered for whatever reason, I cannot guess why.

Notsee · September 16, 2023, 9:05pm

Hmm, maybe because it need to register manually, or something like that?

Notsheesh · September 16, 2023, 9:53pm

Hello, I can't send anymore replies

it seems that the network is registered now?
what should I do next?

AT+CEREG?
+CEREG: 1,2

Notsheesh · September 16, 2023, 11:00pm

the GSM also shows that it's registered, I think?

AT+CREG?
+CREG: 1,0

and here's the full command list if you need it

AT+CLAC
ATE
ATV
ATQ
AT&V
AT&W
AT&F
AT&S
ATS24
AT+CGMM
AT+GMM
AT+CGMR
AT+GMR
AT+CGMI
AT+GMI
AT+FMI
AT+FMM
AT+FMR
AT+MSTART
AT+GTSET
AT+CMUX
ATZ
ATI
ATD
ATDL
ATO
ATH
ATA
AT+VTA
AT+VTS
AT+VTD
AT+CHUP
AT+CMOD
AT+CBST
AT+CAVIMS
AT+CSCS
AT+CLCK
AT+CPWD
AT+CMEE
AT+CHUP
AT+VTS
AT+CREG
AT+COPS
AT+CLIP
AT+CLIR
AT+CCFC
AT+CCWA
AT+CLCC
AT+CHLD
AT+CNMI
AT+CPMS
AT+CSMP
AT+CSCA
AT+CSMS
AT+CSDH
AT+CMGF
AT+CMGR
AT+CMGL
AT+CMGD
AT+CMGW
AT+CMGS
AT+CMSS
AT+CNMA
AT+CPBS
AT+CPBR
AT+CPBF
AT+CPBW
AT+CNUM
AT+CGREG
AT+CEREG
AT+CGATT
AT+CGDCONT
AT+CGACT
AT+CGPADDR
AT+CGQREQ
AT+CGQMIN
AT+CGEQREQ
AT+CGEQMIN
AT+FTPOPEN
AT+FTPCLOSE
AT+FTPLIST
AT+FTPINFO
AT+FTPCWD
AT+FTPMKD
AT+FTPRMD
AT+FTPPWD
AT+FTPCDUP
AT+FTPDEL
AT+FTPREN
AT+FTPSTAT
AT+FTPSYST
AT+FTPNOOP
AT+FTPSTOR
AT+FTPREST
AT+FTPGET
AT+FTPRECV
AT+FTPRETR
AT+FTPPUT
AT+FTPMODE
AT+GTFTPKEEPALIVE
AT+MIPCALL
AT+MIPOPEN
AT+MIPSETS
AT+MIPDSETS
AT+MIPSEND
AT+MIPPUSH
AT+MIPCLOSE
AT+MIPODM
AT+MIPCONF
AT+MSDNS
AT+MIPFLUSH
AT+MPING
AT+MIPDNS
AT+MIPREAD
AT+MSV6DNS
AT+MIPKEEPCONF
AT+CPBS
AT+CPBW
AT+CNUM
AT+HTTPSET
AT+HTTPACT
AT+HTTPREAD
AT+HTTPDATA
AT+HTTPHEAD
AT+GTSSLFILE
AT+GTSSLMODE
AT+GTSSLERR
AT+GTSSLVER
AT+GTGIS
AT+GTKEY
AT+CPIN
AT+CEMODE
AT+CSQ
AT+CGSN
AT+GSN
AT+CCID
AT+CIMI
AT+CRSM
AT+CSIM
AT+CPWROFF
AT+MSMPD
AT+TPIN
AT+GTUSIM
AT+IFC
AT&K
AT+GTUSB
AT+GPIO
AT+MMAD
AT+CBC
AT+CLK26M
AT+CLK32K
AT+CTZU
AT+CTZR
AT+CCLK
AT+GTRAT
AT+CFSN
AT+MGAUTH
AT+GTSIMRST
AT+CGEREP
AT+CFUN
AT+GTUMODE
AT+GTACT
AT+GTENABLEISP
AT+GTNETCARDTYPE
AT+GTUSBMODE
AT+GTRNDIS
AT+CBAUD
AT+IPR
AT+MTSM
AT+CMGR
AT+CPMS
AT+GTCCINFO
AT+MCELL
AT+SMMFULL
AT+CSDH
AT+CGSMS
AT+WRIM
AT+GTHBEN
AT+GTHBTIME
AT+GTFACHTIME
AT+GTWAKE
AT+MAPATH
AT+MAVOL
AT+CRSL
AT+CLVL
AT+CMUT
AT+CRTT
AT+CALM
AT+MATONE
AT+MMICG
AT+GTMICG
AT+GTAMP
AT+GTAVOL
AT+MMICV
AT+GTHF
ATS94
ATS96
AT+AUDPLAY
AT+AUDREC
AT+AUDRM
AT+VOICEREC
AT+OPAUDPLAY
AT+OPAUDREC
AT+MADIGITAL
AT+MAI2SY
AT+GTCODEC
AT+GAIN
AT+PROCESS
AT+MQTTOPEN
AT+MQTTCLOSE
AT+MQTTSUB
AT+MQTTUNSUB
AT+MQTTWILL
AT+MQTTPUB
AT+MQTTUSER
AT+MQTTTEST
AT+MQTTCONF
AT+MQTTREAD
AT+CLOUDAUTH
AT+CLOUDCONN
AT+CLOUDDIRECTCONN
AT+CLOUDSUB
AT+CLOUDPUB
AT+CLOUDUNSUB
AT+CLOUDDISCONN
AT+CHLD
AT+CLCC
AT+CPAS
AT+COLP
AT+GTLANENABLE
AT+GTSETBAND
AT+SMSWAKEHEAD
AT+SMSWAKEINFO
AT+CPLS
AT+GTLPMMODE
AT+GTPMTIME
AT+GTCELLID
AT+GTLACID
AT+ADBDEBUG
AT+GTAUTODHCP
AT+GTCALLSTATUS
AT+CMGF
AT+CEER
AT+CPBF
AT+CPBR
AT+ZCHANNELTYPE
AT+GTEXIT
AT+GTDISPPP
AT+LCTSN
AT+CLIP
AT+CCWA
AT+GTUSBTIMEOUT
AT+GTSDPOWER
AT+GTUART2CHK
AT+IOTCONN
AT+IOTDISCONN
AT+IOTSUB
AT+IOTUNSUB
AT+IOTPUB
AT+GTSYSCMD
AT+GTCALBAND
AT+GTSGDEBUG
AT+GTATEXITNUM
AT+GTNETLOCAL
OK