# MC7430 cannot attach to network **URL:** \ **Category:** MC/EM Series\ **Created:** [July 23, 2020, 10:25am UTC](https://forum.sierrawireless.com/t/mc7430-cannot-attach-to-network/20995 "2020-07-23T10:25:15Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![john.dursel](https://avatars.discourse-cdn.com/v4/letter/j/b5ac83/32.png) [@john.dursel](https://forum.sierrawireless.com/u/john.dursel)\ **Post date:** [July 23, 2020, 10:25am UTC](https://forum.sierrawireless.com/t/mc7430-cannot-attach-to-network/20995/1 "2020-07-23T10:25:15Z")
Hi, I’ve an issue with one MC7430 that will not attach/register to the network. Its working with its sibling (also an MC7430) with the same SimCard, on the exact same machine. We’ve also updated the modem firmware. Only visible difference between the two modems is in the !BAND? (TDS mask is 00…0020 on other one) and !HWID (revision is 1.0 on other one). Hope you’ll be able to help (Thanks in advance). I’m kind of desperate right now :-/ Have a nice day, AT!BAND? Index, Name, GW Band Mask L Band Mask TDS Band Mask 00, All bands, 100600000C400000 000001E0081600D5 0000000000000000 AT!HWID? Revision: 0.2 AT+GMR SWI9X30C\_02.33.03.00 r8209 CARMD-EV-FRMWR2 2019/08/28 20:59:30 AT!GSTATUS? !GSTATUS: Current Time: 949 Temperature: 33 Reset Counter: 2 Mode: ONLINE System mode: WCDMA PS state: Not attached WCDMA band: WCDMA 900 WCDMA channel: 2991 GMM (PS) state:DEREGISTERED ATTEMPTING ATT MM (CS) state: IDLE UPDATING WCDMA L1 state:L1M\_PCH\_SLEEP LAC: 1010 (4112) RRC state: DISCONNECTED UTRAN Cell ID: 03F552B8 (66409144) RxM RSSI C0: -57 RxD RSSI C0: — RxM RSSI C1: — RxD RSSI C1: — AT+COPS=? +COPS: (1,“Proximus”,“Proximus”,“20601”,2),(3,“Orange B”,“OBE”,“20610”,2),(3,“BASE”,“BASE”,“20620”,2),() AT+CGDCONT? +CGDCONT: 1,“IP”,“xxxx.be”,“0.0.0.0”,0,0,0,0 +CGDCONT: 2,“IP”,“XXXX.BE”,“0.0.0.0”,0,0,0,0 ---
**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\ **Post date:** [July 24, 2020, 4:29am UTC](https://forum.sierrawireless.com/t/mc7430-cannot-attach-to-network/20995/2 "2020-07-24T04:29:31Z")
Hi @john.dursel Could you please provide some information about your module using below commands? AT!IMPREF? AT!IMAGE? ---
**Author:** ![john.dursel](https://avatars.discourse-cdn.com/v4/letter/j/b5ac83/32.png) [@john.dursel](https://forum.sierrawireless.com/u/john.dursel)\ **Post date:** [July 24, 2020, 6:35pm UTC](https://forum.sierrawireless.com/t/mc7430-cannot-attach-to-network/20995/3 "2020-07-24T18:35:30Z")
Hi @Donald , Thank you for your answer. Here is the result of the two AT commands. AT!IMPREF? !IMPREF: preferred fw version: 02.33.03.00 preferred carrier name: GENERIC preferred config name: GENERIC\_002.072\_000 preferred subpri index: 000 current fw version: 02.33.03.00 current carrier name: GENERIC current config name: GENERIC\_002.072\_000 current subpri index: 000 For the AT!IMAGE command, I’ll post it as soon as I can get it (working in remote today). ---
**Author:** ![jean-francois.meyer](https://avatars.discourse-cdn.com/v4/letter/j/3e96dc/32.png) [@jean-francois.meyer](https://forum.sierrawireless.com/u/jean-francois.meyer)\ **Post date:** [July 27, 2020, 6:54am UTC](https://forum.sierrawireless.com/t/mc7430-cannot-attach-to-network/20995/4 "2020-07-27T06:54:04Z")
Hello, here is the IMPREF result and full (I hope) infos: !IMPREF: preferred fw version: 00.00.00.00 preferred carrier name: AUTO-SIM preferred config name: AUTO-SIM\_000.000\_000 current fw version: 02.11.03.22 current carrier name: current config name: fw version mismatch carrier name mismatch config name mismatch AT OK ATE1 OK ATI Manufacturer: Sierra Wireless, Incorporated Model: MC7430 Revision: SWI9X30C\_02.11.03.22 r6782 CARMD-EV-FRMWR2 2016/08/24 15:18:59 MEID: 35612907029743 ESN: 12806930375, 8069BFC7 IMEI: 356129070297434 IMEI SV: 5 FSN: LU817396780410 +GCAP: +CGSM,+DS,+ES OK AT!ENTERCND=A710 ERROR AT!PRIID? PRI Part Number: 9904934 Revision: 000.007 Customer: Cisco Carrier PRI: None OK AT!IMPREF? !IMPREF: preferred fw version: 00.00.00.00 preferred carrier name: AUTO-SIM preferred config name: AUTO-SIM\_000.000\_000 current fw version: 02.11.03.22 current carrier name: current config name: fw version mismatch carrier name mismatch config name mismatch OK AT!IMAGE? TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID FW 1 EMPTY 0 0 0 FW 2 EMPTY 0 0 0 FW 3 EMPTY 0 0 0 FW 4 EMPTY 0 0 0 Max FW images: 4 Active FW image is at slot 255 TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID Max PRI images: 50 OK AT+CFUN? +CFUN: 1 OK AT!UIMS? !UIMS: 0 OK AT+CPIN? +CPIN: READY OK AT+CREG? +CREG: 0,1 OK AT+CGREG? +CGREG: 0,1 OK AT+CEREG? +CEREG: 0,4 OK AT+COPS? +COPS: 0,0,“Proximus”,2 OK AT!GSTSend ATUS? ERROR AT+CGDCONT? +CGDCONT: 1,“IP”,“srwt.be”,“0.0.0.0”,0,0,0,0 OK AT$QCPDPP? $QCPDPP: 1,0 OK AT+CGSend ATT? ERROR AT+CGACT? +CGACT: 1,1 OK AT+CGCONTRDP +CGCONTRDP: 1,5,srwt.be,172.30.10.137, OK AT+CGPADDR +CGPADDR: 1,172.30.10.137 OK AT!BAND? Index, Name 00, All bands OK AT!BAND=? Index, Name 00, All bands 01, Europe 3G 02, North America 3G 06, Europe 07, North America 08, WCDMA ALL 09, LTE ALL 0B, TDSCDMA ALL OK AT!LTEINFO? !LTEINFO: Not Available OK AT!LTECA? LTEB1: B8, B18, B19, B21, LTEB3: B5, B7, B19, B28, LTEB5: B3, B7, LTEB7: B3, B5, B7, B28, LTEB8: B1, LTEB18: B1, LTEB19: B1, B3, B21, LTEB21: B1, B19, LTEB28: B3, B7, LTEB38: B38, LTEB39: B39, LTEB40: B40, LTEB41: B41, OK AT!RXDEN? !RXDEN: 01 OK AT!PCINFO? State: Online LPM voters - Temp:0, Volt:0, User:0, W\_DISABLE:0, IMSWITCH:0, BIOS:0 LPM persistence - None OK AT!USBCOMP? ERROR AT!USBCOMP=? ERROR AT!SELRSend AT? ERROR AT!SELRSend AT=? ERROR AT!USBSPEED? ERROR AT!PCOFFEN? ERROR AT!CUSTOM? !CUSTOM: GPSENABLE 0x01 UIM2ENABLE 0x01 SIMLPM 0x01 SINGLEAPNSWITCH 0x01 OK AT!CUSTOM=? !CUSTOM: “GPSENABLE” “GPSLPM” “GPIOSARENABLE” “GPSSEL” “GPSREFLOC” “IMSWITCHHIDE” “IMCONFIG” “IPV6ENABLE” “WAKEHOSTEN” “SIMHOTSWAPDIS” “CFUNPERSISTEN” “QMIDETACHEN” “UIM2ENABLE” “NETWORKNAMEFMT” “SIMLPM” “USBSERIALENABLE” “PCSCDISABLE” “DHCPRELAYENABLE” “FLOWNOTIDISABLE” “FASTENUMEN” “CSVOICEREJECT” “IPCHANNELRATEEN” “SINGLEAPNSWITCH” “DGENABLE” OK AT!PCTEMP? Temp state: Normal Temperature: 32.00 C OK AT!PCVOLT? Volt state: Normal Power supply voltage: 3300 mV (ADC: 35864) OK AT!PCVOLTLIMITS? ERROR AT!HWID? ERROR AT!ERR QDSP6 ARM9 (not saved) 00 01 seccrypt 00209 01 01 gpstask 03846 02 01 bsio 00706 03 01 rfant 00332 04 01 stm 00515 05 01 hdrscmdb 05334 06 01 gsnvif 00855 07 01 rdevmap 01604 08 01 hdridle 00819 09 01 rrccspfs 02255 10 01 sys\_eplm 00691 11 02 rlcdl 02412 12 01 l2ultask 00467 13 01 smd\_sio 01628 OK AT!BCFWUPDATESTATUS !BCFWUPDATESTATUS: UNKNOWN OK AT!TMSTATUS? ERROR AT!GSTATUS? !GSTATUS: Current Time: 312590 Temperature: 32 Reset Counter: 1 Mode: ONLINE System mode: WCDMA PS state: Attached WCDMA band: WCDMA 900 WCDMA channel: 2991 GMM (PS) state:REGISTERED NORMAL SERVICE MM (CS) state: IDLE NORMAL SERVICE WCDMA L1 state:L1M\_PCH\_SLEEP LAC: 1010 (4112) RRC state: DISCONNECTED Cell ID: 03F552B8 (66409144) RxM RSSI C0: — RxD RSSI C0: — RxM RSSI C1: — RxD RSSI C1: — OK AT OK ATE1 OK ATI Manufacturer: Sierra Wireless, Incorporated Model: MC7430 Revision: SWI9X30C\_02.11.03.22 r6782 CARMD-EV-FRMWR2 2016/08/24 15:18:59 MEID: 35612907029743 ESN: 12806930375, 8069BFC7 IMEI: 356129070297434 IMEI SV: 5 FSN: LU817396780410 +GCAP: +CGSM,+DS,+ES OK AT!ENTERCND=A710 ERROR AT OK AT!PRIID? PRI Part Number: 9904934 Revision: 000.007 Customer: Cisco Carrier PRI: None OK AT!IMPREF? !IMPREF: preferred fw version: 00.00.00.00 preferred carrier name: AUTO-SIM preferred config name: AUTO-SIM\_000.000\_000 current fw version: 02.11.03.22 current carrier name: current config name: fw version mismatch carrier name mismatch config name mismatch OK AT!IMAGE? TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID FW 1 EMPTY 0 0 0 FW 2 EMPTY 0 0 0 FW 3 EMPTY 0 0 0 FW 4 EMPTY 0 0 0 Max FW images: 4 Active FW image is at slot 255 TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID Max PRI images: 50 OK AT+CFUN? +CFUN: 1 OK AT!UIMS? !UIMS: 0 OK AT+CPIN? +CPIN: READY OK AT+CREG? +CREG: 0,1 OK AT+CGREG? +CGREG: 0,1 OK AT+CEREG? +CEREG: 0,4 OK AT+COPS? +COPS: 0,0,“Proximus”,2 OK AT!GSTSend ATUS? ERROR AT+CGDCONT? +CGDCONT: 1,“IP”,“srwt.be”,“0.0.0.0”,0,0,0,0 OK AT$QCPDPP? $QCPDPP: 1,0 OK AT+CGSend ATT? ERROR AT+CGACT? +CGACT: 1,1 OK AT+CGCONTRDP +CGCONTRDP: 1,5,srwt.be,172.30.10.137, OK AT+CGPADDR +CGPADDR: 1,172.30.10.137 OK AT!BAND? Index, Name 00, All bands OK AT!BAND=? Index, Name 00, All bands 01, Europe 3G 02, North America 3G 06, Europe 07, North America 08, WCDMA ALL 09, LTE ALL 0B, TDSCDMA ALL OK AT!LTEINFO? !LTEINFO: Not Available OK AT!LTECA? LTEB1: B8, B18, B19, B21, LTEB3: B5, B7, B19, B28, LTEB5: B3, B7, LTEB7: B3, B5, B7, B28, LTEB8: B1, LTEB18: B1, LTEB19: B1, B3, B21, LTEB21: B1, B19, LTEB28: B3, B7, LTEB38: B38, LTEB39: B39, LTEB40: B40, LTEB41: B41, OK AT!RXDEN? !RXDEN: 01 OK AT!PCINFO? State: Online LPM voters - Temp:0, Volt:0, User:0, W\_DISABLE:0, IMSWITCH:0, BIOS:0 LPM persistence - None OK AT!USBCOMP? ERROR AT!USBCOMP=? ERROR AT!SELRSend AT? ERROR AT!SELRSend AT=? ERROR AT!USBSPEED? ERROR AT!PCOFFEN? ERROR AT!CUSTOM? !CUSTOM: GPSENABLE 0x01 UIM2ENABLE 0x01 SIMLPM 0x01 SINGLEAPNSWITCH 0x01 OK AT!CUSTOM=? !CUSTOM: “GPSENABLE” “GPSLPM” “GPIOSARENABLE” “GPSSEL” “GPSREFLOC” “IMSWITCHHIDE” “IMCONFIG” “IPV6ENABLE” “WAKEHOSTEN” “SIMHOTSWAPDIS” “CFUNPERSISTEN” “QMIDETACHEN” “UIM2ENABLE” “NETWORKNAMEFMT” “SIMLPM” “USBSERIALENABLE” “PCSCDISABLE” “DHCPRELAYENABLE” “FLOWNOTIDISABLE” “FASTENUMEN” “CSVOICEREJECT” “IPCHANNELRATEEN” “SINGLEAPNSWITCH” “DGENABLE” OK AT!PCTEMP? Temp state: Normal Temperature: 32.00 C OK AT!PCVOLT? Volt state: Normal Power supply voltage: 3304 mV (ADC: 35878) OK AT!PCVOLTLIMITS? ERROR AT!HWID? ERROR AT!ERR QDSP6 ARM9 (not saved) 00 01 seccrypt 00209 01 01 gpstask 03846 02 01 bsio 00706 03 01 rfant 00332 04 01 stm 00515 05 01 hdrscmdb 05334 06 01 gsnvif 00855 07 01 rdevmap 01604 08 01 hdridle 00819 09 01 rrccspfs 02255 10 01 sys\_eplm 00691 11 02 rlcdl 02412 12 01 l2ultask 00467 13 01 smd\_sio 01628 OK AT!BCFWUPDATESTATUS !BCFWUPDATESTATUS: UNKNOWN OK AT!TMSTATUS? ERROR AT!GSTATUS? !GSTATUS: Current Time: 312771 Temperature: 32 Reset Counter: 1 Mode: ONLINE System mode: WCDMA PS state: Attached WCDMA band: WCDMA 900 WCDMA channel: 2991 GMM (PS) state:REGISTERED NORMAL SERVICE MM (CS) state: IDLE NORMAL SERVICE WCDMA L1 state:L1M\_PCH\_SLEEP LAC: 1010 (4112) RRC state: DISCONNECTED Cell ID: 03F552B8 (66409144) RxM RSSI C0: — RxD RSSI C0: — RxM RSSI C1: — RxD RSSI C1: — OK ---
**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\ **Post date:** [July 27, 2020, 11:51am UTC](https://forum.sierrawireless.com/t/mc7430-cannot-attach-to-network/20995/5 "2020-07-27T11:51:47Z")
HI @jean-francois.meyer > [@jean-francois.meyer](#): > > AT+CREG? > +CREG: 0,1 > OK > [@jean-francois.meyer](#): > > AT+CGREG? > +CGREG: 0,1 > OK > [@jean-francois.meyer](#): > > AT+COPS? > +COPS: 0,0,“Proximus”,2 > OK This means your module can be attached to 3G networks. > [@jean-francois.meyer](#): > > AT+CEREG? > +CEREG: 0,4 > OK You can use AT!SELRAT=06 to force module to only LTE and check that your SIM card supports LTE from your mobile service provider. > [@jean-francois.meyer](#): > > AT!ENTERCND=A710 > ERROR > [@jean-francois.meyer](#): > > AT!USBCOMP? > ERROR > [@jean-francois.meyer](#): > > AT!HWID? > ERROR You need to enter `AT!ENTERCND="A710"` command to unlock password. Please help to tick “Solution” if your question is answered. ---
**Author:** ![jean-francois.meyer](https://avatars.discourse-cdn.com/v4/letter/j/3e96dc/32.png) [@jean-francois.meyer](https://forum.sierrawireless.com/u/jean-francois.meyer)\ **Post date:** [July 27, 2020, 12:20pm UTC](https://forum.sierrawireless.com/t/mc7430-cannot-attach-to-network/20995/6 "2020-07-27T12:20:14Z")
Thanks. This modem with this firmware can connect to the belgian carrier (Proximus). The following one with another firmware cannot: ATI Manufacturer: Sierra Wireless, Incorporated Model: MC7430 Revision: SWI9X30C\_02.33.03.00 r8209 CARMD-EV-FRMWR2 2019/08/28 20:59:30 MEID: 35612907029790 ESN: 12800222030, 8003634E IMEI: 356129070297905 IMEI SV: 20 FSN: LU535200350102 +GCAP: +CGSM OK AT!IMPREF? !IMPREF: preferred fw version: 00.00.00.00 preferred carrier name: AUTO-SIM preferred config name: AUTO-SIM\_000.000\_000 preferred subpri index: 000 current fw version: 02.33.03.00 current carrier name: GENERIC current config name: GENERIC\_002.072\_000 current subpri index: 000 AT!IMAGE? TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID FW 1 GOOD 1 0 0 ?_? 02.24.05.06_? FW 2 GOOD 127 0 0 ?_? 02.33.03.00_? FW 3 EMPTY 0 0 0 FW 4 EMPTY 0 0 0 Max FW images: 4 Active FW image is at slot 2 TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID PRI FF GOOD 0 0 0 002.072\_000 02.33.03.00\_GENERIC Max PRI images: 50 AT+CGDCONT? +CGDCONT: 1,“IP”,“srwt.be”,“0.0.0.0”,0,0,0,0 +CGDCONT: 2,“IP”,“SRWT.BE”,“0.0.0.0”,0,0,0,0 AT!BAND? Index, Name 06, Europe The previous one gives AT!BAND? Index, Name 00, All bands OK AT!GSTATUS? !GSTATUS: Current Time: 208 Temperature: 32 Reset Counter: 1 Mode: ONLINE System mode: WCDMA PS state: Not attached WCDMA band: WCDMA 900 WCDMA channel: 2991 GMM (PS) state:DEREGISTERED ATTEMPTING ATT MM (CS) state: IDLE UPDATING WCDMA L1 state:L1M\_PCH\_SLEEP LAC: 1010 (4112) RRC state: DISCONNECTED UTRAN Cell ID: 03F552B8 (66409144) RxM RSSI C0: -49 RxD RSSI C0: — RxM RSSI C1: — RxD RSSI C1: — ---
**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\ **Post date:** [July 28, 2020, 11:24am UTC](https://forum.sierrawireless.com/t/mc7430-cannot-attach-to-network/20995/7 "2020-07-28T11:24:58Z")
Hi @john.dursel, @jean-francois.meyer > [@john.dursel](#): > > AT!HWID? > Revision: 0.2 This problem is caused by an old hardware version 0.2. This one maybe doesn’t allow newer firmware versions on it. You can try downloading the firmware 01.08.07. Please refer to [My EM7455 has no carrier pri and a carrier/config name missmatch](https://forum.sierrawireless.com/t/my-em7455-has-no-carrier-pri-and-a-carrier-config-name-missmatch/17584) [Firmware updating Dell 5811e with ancient firmware (SWI9X30C\_00.08.02.00) - #16 by ctx1001](https://forum.sierrawireless.com/t/firmware-updating-dell-5811e-with-ancient-firmware-swi9x30c-00-08-02-00/12829/16) ---
**Author:** ![john.dursel](https://avatars.discourse-cdn.com/v4/letter/j/b5ac83/32.png) [@john.dursel](https://forum.sierrawireless.com/u/john.dursel)\ **Post date:** [July 28, 2020, 7:36pm UTC](https://forum.sierrawireless.com/t/mc7430-cannot-attach-to-network/20995/8 "2020-07-28T19:36:01Z")
Hi @Donald, As you’ve seen, @jean-francois.meyer has took over the subject. Thank you already for your time and your advices. We’ll test the old firmware and let you (and the forum) know if it has solved this issue.