# Using Private LTE with EM9191 **URL:** \ **Category:** IoT Modules\ **Created:** [September 29, 2023, 1:41am UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742 "2023-09-29T01:41:16Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 1:41am UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/1 "2023-09-29T01:41:16Z")
Hi, I would like to ask for some help to debug my current issue, I have been cracking my head with an EM9191 module and its incapacity to discover our test network MCC/MNC 00101 , even though other modems are able to connect to it without any issues, we tried with several bands and nothing, the modem appears to be blind to the 00101 network which is now running on band 1 / band 7 / band 3 all at 20 Mhz, however, it IS able to see all public networks running on LTE. It keeps on attaching to whatever other carrier is out there but 00101. I am monitoring the test network, and even when I force the module to attach , it just does nothing, not even a try. is there any specific procedure to discover a MCC/MNC 00101 network? please advise, Many thanks Raul ATI Manufacturer: Sierra Wireless, Incorporated Model: EM9191 Revision: SWIX55C\_01.07.19.00 000000 jenkins 2021/02/11 02:17:18 IMEI: 355890340860498 IMEI SV: 7 FSN: 8W2243502501A1 +GCAP: +CGSM,+DS,+ES OK AT!IMAGE ERROR AT!IMAGE? TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID FW 1 GOOD 1 0 0 ?_? 01.07.19.00_? Max FW images: 1 Active FW image is at slot 1 TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID PRI FF GOOD 0 0 0 016.010\_000 01.07.19.00\_GENERIC Max PRI images: 50 OK AT!IMPREF? !IMPREF: preferred fw version: 01.07.19.00 preferred carrier name: GENERIC preferred config name: GENERIC\_016.010\_000 preferred subpri index: 000 current fw version: 01.07.19.00 current carrier name: GENERIC current config name: GENERIC\_016.010\_000 current subpri index: 000 !GSTATUS: Current Time: 9433 Temperature: 30 Modem Mitigate Level: 0 ModemProc Mitigate Level: 0 Reset Counter: 1 Mode: ONLINE System mode: LTE PS state: Not attached LTE band: B255 LTE bw: Unknown LTE Rx chan: 4294967295 LTE Tx chan: 4294967295 EMM state: Deregistered Attach Needed RRC state: RRC Idle IMS reg state: NOT REGISTERED IMS mode: Normal IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP PCC RxM RSSI: — PCC RxM RSRP: — PCC RxD RSSI: — PCC RxD RSRP: — PCC RxM1 RSSI: — PCC RxM1 RSRP: — PCC RxD1 RSSI: — PCC RxD1 RSRP: — Tx Power: – TAC: ffff (65535) RSRQ (dB): 0.1 Cell ID: ffffffff (4294967295) SINR (dB): 0 NR5G band: — NR5G bw: — NR5G Rx chan: — NR5G Tx chan: — NR5G RSRP (dBm): — NR5G RSRQ (dB): — NR5G SINR (dB): — AT+COPS=1,2,“00101”,7 +CME ERROR: no network service ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 1:49am UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/2 "2023-09-29T01:49:06Z")
have you tried “AT+COPS=?” ---
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 1:49am UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/3 "2023-09-29T01:49:37Z")
yep, all commercial networks do appear, the 00101 does not. ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 1:57am UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/4 "2023-09-29T01:57:54Z")
i saw that “LTE band: B255” in AT!GSTATUS? what is your setting for AT!BAND? and AT!SELRAT? In addition you are using very old FW, you can see if the new FW can fix the issue ---
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 2:31am UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/5 "2023-09-29T02:31:56Z")
Hello! AT!SELRAT=Only LTE AT!BAND=All I ran the firmware upgrade using SWIX55C\_03.10.07.00-001\_GENERIC\_030.062\_000 twice, the window’s firmware tool reports the upgrade as successful however when I check the version it keeps on having the same version, maybe I am missing something at this step?? Thanks! ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 2:49am UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/6 "2023-09-29T02:49:26Z")
how do you use the fdt tool? like this? `fdt2.exe -d g5k -ignswto -f SWIX55C_03.09.03.00-001.cwe SWIX55C_03.09.03.00-001_VERIZON_030.033_001.nvu` ---
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 3:08pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/7 "2023-09-29T15:08:34Z")
Hello Yeah now it can see the network! Many thanks for the hint, however I lost the AT Port, I am only seeing a single USB serial port that might be data but not commands, I am using SWIX55C\_03.10.11.00-001.cwe SWIX55C\_03.10.11.00-001\_GENERIC\_030.066\_000.nvu any ideas on how to recover the AT PORT? it is now working only in MBIM … Thanks ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 3:30pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/8 "2023-09-29T15:30:08Z")
What do you see in windows device manager? ---
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 3:31pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/9 "2023-09-29T15:31:08Z")
Hello! [2591872.466203] usb 1-1: New USB device found, idVendor=1199, idProduct=90d3, bcdDevice= 0.06 [2591872.466208] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [2591872.466210] usb 1-1: Product: Sierra Wireless EM9191 [2591872.466212] usb 1-1: Manufacturer: Sierra Wireless, Incorporated [2591872.466214] usb 1-1: SerialNumber: 8W2243502501A133 [2591872.540059] cdc\_mbim 1-1:1.0: setting rx\_max = 16384 [2591872.540746] cdc\_mbim 1-1:1.0: cdc-wdm1: USB WDM device [2591872.541231] cdc\_mbim 1-1:1.0 wwan1: register ‘cdc\_mbim’ at usb-0000:00:15.0-1, CDC MBIM, 82:41:c8:3d:12:9e [2591872.542988] option 1-1:1.4: GSM modem (1-port) converter detected [2591872.543184] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB4 and if you open that ttyUSB4 , it does nothing , it is not the AT port, Thanks! ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 3:43pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/10 "2023-09-29T15:43:27Z")
I never see such situation before with only dm port and mbim interface What have you done? Just firmware upgrade? How about windows? ---
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 3:45pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/11 "2023-09-29T15:45:58Z")
Just firmware update with the indicated firmware, and the condition is exactly the same in windows, no idea on how to continue The good thing is , the modem now can connect to the test PLNM but it can be only managed through qmicli using --device-open-mbim flag any ideas? ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 4:23pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/12 "2023-09-29T16:23:29Z")
not sure if this works, you can have a try: 1. download the USB driver of Windows: [https://source.sierrawireless.com/resources/airprime/software/sdx55-windows-drivers-latest-release/#sthash.t4StrCJv.dpbs](https://source.sierrawireless.com/resources/airprime/software/sdx55-windows-drivers-latest-release/#sthash.t4StrCJv.dpbs) 2. create a configuration.ini file in the same folder as the driver, add the following setting in configuration.ini ```auto [Default Values] USBCOMP=9 ``` 1. run the driver exe. 2. connect the EM9 to windows again ---
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 5:05pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/13 "2023-09-29T17:05:35Z")
Hello, It makes no difference, but please not , the idea is to use the modem in Linux, is it possible to set that configuration in linux?? ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 5:07pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/14 "2023-09-29T17:07:27Z")
The idea is to enable it only You can switch to linux afterward How about USBCOMP=9? ---
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 5:27pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/15 "2023-09-29T17:27:06Z")
okeay… just to know , where should I leave the configuration.ini file? ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 5:29pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/16 "2023-09-29T17:29:48Z")
In the same folder as the driver exe when you run it ---
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 5:36pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/17 "2023-09-29T17:36:10Z")
Ok, it changed the comport to 9… but still only 1 serial port ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 6:02pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/18 "2023-09-29T18:02:33Z")
Can it do AT communication? Is it the same for “USBCOMP=8”? ---
**Author:** ![raul](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@raul](https://forum.sierrawireless.com/u/raul)\ **Post date:** [September 29, 2023, 7:48pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/19 "2023-09-29T19:48:16Z")
Many Thanks!! now it works in COM 9 ! how do I translate that to linux?! ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [September 29, 2023, 11:03pm UTC](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742/20 "2023-09-29T23:03:37Z")
Didn’t you just need to connect your module from linux to windows? [Next page](https://forum.sierrawireless.com/t/using-private-lte-with-em9191/30742.md?page=2)