EM9191 : AT+CFUN=1 returns CME ERROR: operation not supported

[agauthier]

I’m working with the EM9191.
Originally I was working with
Version : SWIX55C_01.07.08.00 000000 jenkins 2020/11/16 10:11:33
and I was able to register and connect to the network.

For some reason I was only able to use LTE and not 5G.

So I decided to upgrade to the latest firmware but unfortunately I am no longer able to enable the radio using “AT+CFUN=1”. It seems to return “CME ERROR: operation not supported”.

The version information is:

ati3
Manufacturer: Sierra Wireless, Incorporated
Model: EM9191
Revision: SWIX55C_03.09.11.00 7bf975 jenkins 2022/06/10 20:36:01
IMEI: 355890340124093
IMEI SV: 22
FSN: 8W0462009002A1
+GCAP: +CGSM

What would be the cause of this error?

[jyijyi]

Seems you cannot directly upgrade from 1.7.8.0 to 3.9.11.0.
You can see the release note

[agauthier]

Thank you very much for your response.
This helped me to revert back to

Manufacturer: Sierra Wireless, Incorporated
Model: EM9191
Revision: SWIX55C_01.07.13.00 000000 jenkins 2020/12/16 22:24:13
IMEI: 355890340124093
IMEI SV: 6
FSN: 8W0462009002A1
+GCAP: +CGSM

I followed the instructions under Linux:Older than R18 drivers:USB:

I am now able to connect to the network.
It is not the same version that I originally had, but close enough.
This is Deutsche Telekom approved version. Not sure it matters.

Do you think that if I move to a more up to date version (3.x), it might help getting a 5G channel to work?

If so, based on the Release Notes, I would need to move to SP1_RC6.
Is SP1_RC6 a service pack for Windows drivers and apps? If so, do you know what would be the equivalent for Linux?

Thanks in advance.

[jyijyi]

Sp1_rc6 is firmware version
Does your 5g work now?

You need to first go to 1.7.19.0

[agauthier]

It seems to always drop to LTE for some reason.

!GSTATUS: 
Current Time:  163              Temperature: 49
Modem Mitigate Level: 0         ModemProc Mitigate Level: 0
Reset Counter: 1                Mode:        ONLINE         
System mode:   LTE              PS state:    Attached     
LTE band:      B4               LTE bw:      15 MHz  
LTE Rx chan:   2025             LTE Tx chan: 20025
EMM state:     Registered       Normal Service 
RRC state:     RRC Idle       
IMS reg state: UNKNOWN          IMS mode:    Not Support  
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
PCC RxM RSSI:  -68              PCC RxM RSRP:  -105
PCC RxD RSSI:  -94              PCC RxD RSRP:  -138
Tx Power:      --               TAC:         717a (29050)
RSRQ (dB):     -16.8            Cell ID:     00cb0e03 (13307395)
SINR (dB):     12.4
NR5G band:       ---            NR5G bw:         ---
NR5G Rx chan:    ---            NR5G Tx chan:    ---
NR5G RSRP (dBm): ---            NR5G RSRQ (dB):  ---
NR5G SINR (dB):  ---

How can I get a hold of 1.7.19.0?

[jyijyi]

Is your sim 5g sim?
Did you check at!selrat? And at!band?
Is your Apn correct for 5g?
Did you establish data traffic to the host? If no data traffic, it will stay in lte mode

For FW 1.7.19.0, you can see here:

Upgrade of old EM9191 firmware and band N40 support

Hey! We are using two EM9191 5G modems together with an Amarisoft Callbox. Both were working fine. Due to project requirements we need to use band N40 which is listed as supported in the EM9191 technical spec. AT!BAND=? does not list n40 as supported. I am not sure if that is due to the old firmwares installed on the EM9191s we have. Does anybody know if newer firmwares enable band n40? I have not found anything in the release notes. The firmware versions on the two modems are: SWIX55C_01.0…

[agauthier]

Thanks again for the load to update.

To answer your questions:

1. Is your sim 5g?
   Yes as we tried it with a 5g phone and it comes up.

2. Is your APN correct for 5g?
   I think it is. The service provider is Rogers.
   According to their web site, it should be ltemobile.apn.
   When we check with a 5g phone, it says ltedata.apn.

3. Did you establish data traffic to the host?
   Yes, as I can ping the internet with 8.8.8.8.
   Can I switch to 5g on the fly with an AT command?

The following is the output with different firmware loads which always use LTE.

apn : ltemobile.apn

Response: ati3
Manufacturer: Sierra Wireless, Incorporated
Model: EM9191
Revision: SWIX55C_01.07.13.00 000000 jenkins 2020/12/16 22:24:13
IMEI: 355890340124093
IMEI SV:  6
FSN: 8W0462009002A1
+GCAP: +CGSM

Before connection
--------------------
Response: at!selrat?
!SELRAT: 00, Automatic

OK

After connection
-------------------
!SELRAT: Unknown RAT mode. Use AT!SELRAT to set band. 
00001A3C
00000000
OK

Response: at!band?
Index, Name
00, All bands
OK

!GSTATUS: 
Current Time:  1522             Temperature: 37
Modem Mitigate Level: 0         ModemProc Mitigate Level: 0
Reset Counter: 1                Mode:        ONLINE         
System mode:   LTE              PS state:    Attached     
LTE band:      B7               LTE bw:      20 MHz  
LTE Rx chan:   3050             LTE Tx chan: 21050
EMM state:     Registered       Normal Service 
RRC state:     RRC Idle       
IMS reg state: UNKNOWN          IMS mode:    Not Support  
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
PCC RxM RSSI:  -66              PCC RxM RSRP:  -98
PCC RxD RSSI:  -92              PCC RxD RSRP:  -138
Tx Power:      --               TAC:         717a (29050)
RSRQ (dB):     -11.1            Cell ID:     01072349 (17245001)
SINR (dB):     17.6
NR5G band:       ---            NR5G bw:         ---
NR5G Rx chan:    ---            NR5G Tx chan:    ---
NR5G RSRP (dBm): ---            NR5G RSRQ (dB):  ---
NR5G SINR (dB):  ---

==================================================================================================

apn : ltemobile.apn

Manufacturer: Sierra Wireless, Incorporated
Model: EM9191
Revision: SWIX55C_01.07.19.00 000000 jenkins 2021/02/11 02:17:18
IMEI: 355890340124093
IMEI SV:  7
FSN: 8W0462009002A1
+GCAP: +CGSM

Before connection
--------------------
Response: at!selrat?
!SELRAT: 00, Automatic

OK

After connection
-----------------
Response: at!selrat?
!SELRAT: Unknown RAT mode. Use AT!SELRAT to set band. 
00001A3C
00000000
OK

Response: at!band?
Index, Name
00, All bands
OK
CMD> 

Response: at!gstatus?
!GSTATUS: 
Current Time:  310              Temperature: 38
Modem Mitigate Level: 0         ModemProc Mitigate Level: 0
Reset Counter: 1                Mode:        ONLINE         
System mode:   LTE              PS state:    Attached     
LTE band:      B2               LTE bw:      15 MHz  
LTE Rx chan:   1075             LTE Tx chan: 19075
EMM state:     Registered       Normal Service 
RRC state:     RRC Idle       
IMS reg state: NOT REGISTERED   IMS mode:    Normal       
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
PCC RxM RSSI:  -75              PCC RxM RSRP:  -101
PCC RxD RSSI:  ---              PCC RxD RSRP:  --- 
Tx Power:      --               TAC:         717a (29050)
RSRQ (dB):     -7.4             Cell ID:     01072316 (17244950)
SINR (dB):     15.2
NR5G band:       ---            NR5G bw:         ---
NR5G Rx chan:    ---            NR5G Tx chan:    ---
NR5G RSRP (dBm): ---            NR5G RSRQ (dB):  ---
NR5G SINR (dB):  ---

OK


==================================================================
apn : ltemobile.com

Response: ati3
Manufacturer: Sierra Wireless, Incorporated
Model: EM9191
Revision: SWIX55C_03.09.11.00 7bf975 jenkins 2022/06/10 20:36:01
IMEI: 355890340124093
IMEI SV: 22
FSN: 8W0462009002A1
+GCAP: +CGSM

OK

After connection
----------------
Enter AT command for the radio to send: at!selrat?
Response: at!selrat?
!SELRAT: 00, Automatic

OK

Enter AT command for the radio to send: at!band?
Response: at!band?
Index, Name
00, All bands
OK

!GSTATUS: 
Current Time:  346              Temperature: 37
Thermal Mitigation Level: 0
Reset Counter: 1                Mode:        ONLINE         
System mode:   LTE              PS state:    Attached     
LTE band:      B7               LTE bw:      20 MHz  
LTE Rx chan:   3050             LTE Tx chan: 21050
EMM state:     Registered       Normal Service 
RRC state:     RRC Idle       
IMS reg state: NOT REGISTERED   IMS mode:    Normal       
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
PCC RxM RSSI:  -66              PCC RxM RSRP:  -97
PCC RxD RSSI:  -92              PCC RxD RSRP:  -139
PCC Tx Power:  ---              TAC:         717a (29050)
RSRQ (dB):     -11.6            Cell ID:     01072349 (17245001)
SINR (dB):     18.4
NR5G band:       ---            NR5G bw:         ---
NR5G Tx Power:   ---            NR5G Tx chan:    ---
NR5G Rx chan:    ---            NR5G RSRP (dBm): ---
NR5G RSRQ (dB):  ---            NR5G SINR (dB):  ---



=====================================================================================
apn : ltemobile.apn
apn : ltedata.apn

Response: ati3
Manufacturer: Sierra Wireless, Incorporated
Model: EM9191
Revision: SWIX55C_03.09.14.00 5571c0 jenkins 2022/07/28 20:38:23
IMEI: 355890340124093
IMEI SV: 23
FSN: 8W0462009002A1
+GCAP: +CGSM

OK

After connection
--------------------

Response: at!selrat?
!SELRAT: 00, Automatic

OK

Response: at!band?
Index, Name
00, All bands
OK

!GSTATUS: 
Current Time:  227              Temperature: 40
Thermal Mitigation Level: 0
Reset Counter: 1                Mode:        ONLINE         
System mode:   LTE              PS state:    Attached     
LTE band:      B2               LTE bw:      15 MHz  
LTE Rx chan:   1075             LTE Tx chan: 19075
EMM state:     Registered       Normal Service 
RRC state:     RRC Idle       
IMS reg state: NOT REGISTERED   IMS mode:    Normal       
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
PCC RxM RSSI:  -75              PCC RxM RSRP:  -100
PCC RxD RSSI:  -94              PCC RxD RSRP:  -137
PCC Tx Power:  ---              TAC:         717a (29050)
RSRQ (dB):     -7.3             Cell ID:     01072316 (17244950)
SINR (dB):     15.4
NR5G band:       ---            NR5G bw:         ---
NR5G Tx Power:   ---            NR5G Tx chan:    ---
NR5G Rx chan:    ---            NR5G RSRP (dBm): ---
NR5G RSRQ (dB):  ---            NR5G SINR (dB):  ---

[jyijyi]

please also check:

AT!ENTERCND=“A710”
AT!RATCA?

[agauthier]

AT!RATCA? returns

AT!RATCA?
CA:1
ENDC:1
SA:1

[agauthier]

I do seem to see some 5G info sometimes.
But it reverts back to LTE.

!GSTATUS: 
Current Time:  129              Temperature: 42
Thermal Mitigation Level: 0
Reset Counter: 1                Mode:        ONLINE         
System mode:   ENDC             PS state:    Attached     
LTE band:      B7               LTE bw:      20 MHz  
LTE Rx chan:   3050             LTE Tx chan: 21050
LTE SCC1 state:INACTIVE         LTE SCC1 band: B66    
LTE SCC1 bw  : 15 MHz           LTE SCC1 Rx chan: 0
LTE SCC1 UL Configured: FALSE   LTE SCC1 Tx chan: 0
LTE SCC2 state:INACTIVE         LTE SCC2 band: B2     
LTE SCC2 bw  : 15 MHz           LTE SCC2 Rx chan: 1075
LTE SCC2 UL Configured: FALSE   LTE SCC2 Tx chan: 0
EMM state:     Registered       Normal Service 
RRC state:     RRC Connected  
IMS reg state: NOT REGISTERED   IMS mode:    Normal       
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
PCC RxM RSSI:  -62              PCC RxM RSRP:  -91
PCC RxD RSSI:  -92              PCC RxD RSRP:  -134
PCC RxM1 RSSI:  ---             PCC RxM1 RSRP:  --- 
PCC RxD1 RSSI:  ---             PCC RxD1 RSRP:  --- 
SCC1 RxM RSSI: -77              SCC1 RxM RSRP: -103
SCC1 RxD RSSI: -106             SCC1 RxD RSRP: -135
SCC1 RxM1 RSSI:  ---            SCC1 RxM1 RSRP:  --- 
SCC1 RxD1 RSSI:  ---            SCC1 RxD1 RSRP:  --- 
SCC2 RxM RSSI: -80              SCC2 RxM RSRP: -97
SCC2 RxD RSSI: -104             SCC2 RxD RSRP: -126
SCC2 RxM1 RSSI:  ---            SCC2 RxM1 RSRP:  --- 
SCC2 RxD1 RSSI:  ---            SCC2 RxD1 RSRP:  --- 
PCC Tx Power:  -7               TAC:         717a (29050)
SCC1 Tx Power: ---
SCC2 Tx Power: ---
RSRQ (dB):     -9.5             Cell ID:     01072349 (17245001)
SINR (dB):     23.6
SCC1 NR5G band:       n78       SCC1 NR5G bw:         Unknown   
SCC1 NR5G Tx Power:   18        SCC1 NR5G Tx chan:    637668
SCC1 NR5G Rx chan:    637668
NR5G RSRP (dBm): -82            NR5G RSRQ (dB):  -11
NR5G SINR (dB):  31.0

OK

AT+COPS?
+COPS: 0,0,"ROGERS ROGERS",7
OK



AT+CREG?
+CREG: 1,1
OK

AT+CSQ
+CSQ: 27,99
OK

AT*CNTI=0
*CNTI: 0,NONE
OK

AT!GSTATUS?
!GSTATUS: 
Current Time:  135              Temperature: 41
Thermal Mitigation Level: 0
Reset Counter: 1                Mode:        ONLINE         
System mode:   LTE              PS state:    Attached     
LTE band:      B7               LTE bw:      20 MHz  
LTE Rx chan:   3050             LTE Tx chan: 21050
EMM state:     Registered       Normal Service 
RRC state:     RRC Idle       
IMS reg state: NOT REGISTERED   IMS mode:    Normal       
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
PCC RxM RSSI:  -59              PCC RxM RSRP:  -91
PCC RxD RSSI:  -92              PCC RxD RSRP:  -134
PCC Tx Power:  ---              TAC:         717a (29050)
RSRQ (dB):     -10.5            Cell ID:     01072349 (17245001)
SINR (dB):     13.2
NR5G band:       ---            NR5G bw:         ---
NR5G Tx Power:   ---            NR5G Tx chan:    ---
NR5G Rx chan:    ---            NR5G RSRP (dBm): ---
NR5G RSRQ (dB):  ---            NR5G SINR (dB):  ---

OK

[agauthier]

Where could I get a list of activation technologies for the COPS command.
What should it be for 5G?

It is possible that the activation technology is not correct?

 at+cops=?
+cops: (1,"Rogers Wireless","ROGERS","302720",12),(1,"ROGERS","ROGERS","302720",7),(1,"Rogers Wireless","ROGERS","302720",2),(1,"TELUS","TELUS","302220",2),(1,"TELUS","TELUS","302220",7),(1,"Videotron","CANVT","302500",2),(1,"Videotron","CANVT","302520",2),(1,"Videotron","CANVT","302520",7),(1,"Freedom","Freedom","302490",7),(1,"Bell","Bell","302610",2),(1,"Videotron","CANVT","302500",7),(1,"Freedom","Freedom","302490",2),(1,"Bell","Bell","302610",7),,(0,1,2,3,4),(0,1,2)
OK

AT+COPS?
+COPS: 0,0,"ROGERS ROGERS",13
OK

I got the following error

AT+COPS=1,0,"ROGERS ROGERS",7
+CME ERROR: not found

[agauthier]

I have a log with all the commands which might help.
output.txt (13.9 KB)

[agauthier]

The solution is to stream data, then it updates to 5G.

[jyijyi]

Yes, you need to generate data traffic as mentioned above

EM9191 : AT+CFUN=1 returns CME ERROR: operation not supported

It seems to always drop to LTE for some reason. !GSTATUS: Current Time: 163 Temperature: 49 Modem Mitigate Level: 0 ModemProc Mitigate Level: 0 Reset Counter: 1 Mode: ONLINE System mode: LTE PS state: Attached LTE band: B4 LTE bw: 15 MHz LTE Rx chan: 2025 LTE Tx chan: 20025 EMM state: Registered Normal Service RRC state: RRC Idle IMS reg state: UNKNOWN …

[elkanam]

Hi Alain,
as per your results, in general the current 5G deployment is in NSA and DSS mode (each network differently).
the signaling channel still working over LTE, but the data channel working over 5G interface.
so, if you are not open data channel (e.g start data session and send/receive data over the EM9191 module) you will stay in signaling mode on LTE.
when you connect to 5G network it will present on +COPS? results as you can see in you log +COPS: 0,0,“ROGERS ROGERS”,13, that mean you are connect to 5G NSA network.
after you will open the data session you will see ENDC mode in !GSTATUS? result.

BR,
ElkanaM

[qm8yqv_7pwkd4cszca7o]

try this: AT+CFUN=1,1