# Latest **URL:** https://forum.sequans.com/latest.md [Latest](https://forum.sequans.com/latest.md) · [Categories](https://forum.sequans.com/categories.md) · [Tags](https://forum.sequans.com/tags.md) --- ## [Firmware Upgrade from UE8.0.5.12 to LR8.2.2.1-63493 – RASTER Procedure and UART1 Access](https://forum.sequans.com/t/firmware-upgrade-from-ue8-0-5-12-to-lr8-2-2-1-63493-raster-procedure-and-uart1-access/678)
**Author:** [@hansjoerg67](https://forum.sequans.com/u/hansjoerg67)\ **Replies:** 0\ **Last updated:** [October 22, 2026, 2:59pm UTC](https://forum.sequans.com/t/firmware-upgrade-from-ue8-0-5-12-to-lr8-2-2-1-63493-raster-procedure-and-uart1-access/678 "2026-10-22T14:59:27Z")
Dear Sequans Support Team, I am working with a Sequans GM02S module and would like to enable both LTE-M and NB-IoT operation, including NB-IoT on LTE Band 8. My module currently reports the following information: Mod… --- ## [Monarch GMo2PS update over UART0 when in Console mode](https://forum.sequans.com/t/monarch-gmo2ps-update-over-uart0-when-in-console-mode/631)
**Author:** [@Jeremy\_Warmbier](https://forum.sequans.com/u/Jeremy_Warmbier)\ **Replies:** 6\ **Last updated:** [October 20, 2026, 9:32am UTC](https://forum.sequans.com/t/monarch-gmo2ps-update-over-uart0-when-in-console-mode/631 "2026-10-20T09:32:20Z")
I have a custom PCB with a GMo2SP that only maps UART0 through an FTDI UART to USB IC. I am using the PXL development SDK to write an application that runs on the GM02SP. I want to have the ability to print some applic… --- ## [SQN9506 questions](https://forum.sequans.com/t/sqn9506-questions/669)
**Author:** [@Raymond\_Knopp](https://forum.sequans.com/u/Raymond_Knopp)\ **Replies:** 1\ **Last updated:** [October 20, 2026, 12:13am UTC](https://forum.sequans.com/t/sqn9506-questions/669 "2026-10-20T00:13:48Z")
Hi, We are starting a design with the SQN9506 and I have some questions about its operation. Receiving during TX: can an RX path be scheduled to run during a TX slot, on the same frequency as an active TX (n77/n78), f… --- ## [SQNSMQTTPUBLISH async response](https://forum.sequans.com/t/sqnsmqttpublish-async-response/619)
**Author:** [@Brandon\_Dluzen](https://forum.sequans.com/u/Brandon_Dluzen)\ **Replies:** 5\ **Last updated:** [October 13, 2026, 8:50am UTC](https://forum.sequans.com/t/sqnsmqttpublish-async-response/619 "2026-10-13T08:50:40Z")
Hi, I’m running into a strange issue, I’m sending the following command send: AT+SQNSMQTTPUBLISH=0,“test”,28\\r\\n response: \\r\\n\> send: “{“data”:{“test”:“test 1”}}” response: +SQNSMQTTPUBLISH: 2 response: OK waitin… --- ## [Sequans\_GCO2S\_library\_ALTIUM does not contain a step file](https://forum.sequans.com/t/sequans-gco2s-library-altium-does-not-contain-a-step-file/662)
**Author:** [@Valentinas](https://forum.sequans.com/u/Valentinas)\ **Replies:** 0\ **Last updated:** [October 12, 2026, 8:45am UTC](https://forum.sequans.com/t/sequans-gco2s-library-altium-does-not-contain-a-step-file/662 "2026-10-12T08:45:37Z")
Hi, Could you please share the step file for this module? Thank you --- ## [Sequans\_GCO2S\_library\_ALTIUM vs datasheet pinout discrepancies](https://forum.sequans.com/t/sequans-gco2s-library-altium-vs-datasheet-pinout-discrepancies/661)
**Author:** [@Valentinas](https://forum.sequans.com/u/Valentinas)\ **Replies:** 0\ **Last updated:** [October 12, 2026, 8:45am UTC](https://forum.sequans.com/t/sequans-gco2s-library-altium-vs-datasheet-pinout-discrepancies/661 "2026-10-12T08:45:30Z")
Hi, There are many differences between the Altium symbol you provide in “OneDrive\_1\_10-9-2026” compared to the datasheet provided in that same package “Calliope2-GC02S1-DataSheet-Rev.4.pdf”. Could you please clarify wh… --- ## [Why there is ERROR when trying to enable SIM1 interface with AT+CSUS=1? ](https://forum.sequans.com/t/why-there-is-error-when-trying-to-enable-sim1-interface-with-at-csus-1/659)
**Author:** [@Peng\_Gao](https://forum.sequans.com/u/Peng_Gao)\ **Replies:** 0\ **Last updated:** [October 9, 2026, 2:42pm UTC](https://forum.sequans.com/t/why-there-is-error-when-trying-to-enable-sim1-interface-with-at-csus-1/659 "2026-10-09T14:42:50Z")
we have two SIMs connected to the GC02S WW module, SIM0 work and SIM1 does not work. AT+CSUS=1 returns ERROR. Any ideas ? Enabling SIM1 on a GC02S module has two parts: first enable the interface at hardware level wit… --- ## [How to enable SIM1 interface on GC02S1 ? AT+CSUS=1 returns ERROR](https://forum.sequans.com/t/how-to-enable-sim1-interface-on-gc02s1-at-csus-1-returns-error/653)
**Author:** [@DrCooki](https://forum.sequans.com/u/DrCooki)\ **Replies:** 1\ **Last updated:** [October 9, 2026, 2:42pm UTC](https://forum.sequans.com/t/how-to-enable-sim1-interface-on-gc02s1-at-csus-1-returns-error/653 "2026-10-09T14:42:45Z")
Hi, We use GC02S1 module on our board and we have connected both SIM0 and SIM1 interfaces. According to the online AT command reference manual at AT Commands Reference Manual | LR90 Rev. 3 we must use AT+CSUS to enable … --- ## [Full documentation of SQN9506](https://forum.sequans.com/t/full-documentation-of-sqn9506/624)
**Author:** [@Raymond\_Knopp](https://forum.sequans.com/u/Raymond_Knopp)\ **Replies:** 1\ **Last updated:** [October 6, 2026, 11:52am UTC](https://forum.sequans.com/t/full-documentation-of-sqn9506/624 "2026-10-06T11:52:15Z")
Hello, we acquired two SQN9506 EVK and would like to start designing a custom solution around the this solution. I have the EVK user-manual, but I can’t find any supporting documentation in the document zone here. Can we… --- ## [AT+SQNHTTPRCV: Systematic byte mutation during binary download over HTTPS](https://forum.sequans.com/t/at-sqnhttprcv-systematic-byte-mutation-during-binary-download-over-https/582)
**Author:** [@Ben-AgFlo](https://forum.sequans.com/u/Ben-AgFlo)\ **Replies:** 5\ **Last updated:** [September 24, 2026, 10:41pm UTC](https://forum.sequans.com/t/at-sqnhttprcv-systematic-byte-mutation-during-binary-download-over-https/582 "2026-09-24T22:41:32Z")
Hello We are trying to download a binary file onto a custom host MCU platform connected via UART to a GM02S running UE8.2.0.2. File is hosted on Azure Blob Storage and we want to download over HTTPS using the modem’s bu… --- ## [\[GM02S\] Configure MQTT CleanSession flag on connect?](https://forum.sequans.com/t/gm02s-configure-mqtt-cleansession-flag-on-connect/606)
**Author:** [@Ben-AgFlo](https://forum.sequans.com/u/Ben-AgFlo)\ **Replies:** 2\ **Last updated:** [September 24, 2026, 10:41pm UTC](https://forum.sequans.com/t/gm02s-configure-mqtt-cleansession-flag-on-connect/606 "2026-09-24T22:41:25Z")
Hi, We are faced with an issue when connecting to Azure’s IoTHub MQTT broker using Monarch’s embedded MQTT client. This is related to Cloud to Device messages emitted while the remote device is offline. Right on succes… --- ## [Periodic loss of all connections and MT goes to +CEREG: X,0](https://forum.sequans.com/t/periodic-loss-of-all-connections-and-mt-goes-to-cereg-x-0/607)
**Author:** [@Freiberger\_Csaba](https://forum.sequans.com/u/Freiberger_Csaba)\ **Replies:** 12\ **Last updated:** [September 24, 2026, 12:59pm UTC](https://forum.sequans.com/t/periodic-loss-of-all-connections-and-mt-goes-to-cereg-x-0/607 "2026-09-24T12:59:14Z")
Hi, we at Witzenmann develop an IoT device with the GM02S modem. With the modem firmware version LR8.2.1.0-61488 I did not have any critical our periodic errors. However after updating two of our test devices to modem … --- ## [Does Calliope support retain flag on MQTT messages?](https://forum.sequans.com/t/does-calliope-support-retain-flag-on-mqtt-messages/232)
**Author:** [@David\_Ahmed](https://forum.sequans.com/u/David_Ahmed)\ **Replies:** 6\ **Last updated:** [September 24, 2026, 6:54am UTC](https://forum.sequans.com/t/does-calliope-support-retain-flag-on-mqtt-messages/232 "2026-09-24T06:54:54Z")
I have looked into all the MQTT AT commands but I couldn’t figure out how one would send an MQTT message with retain flag set to true. --- ## [SQNSNVW +CME ERROR: operation not supported](https://forum.sequans.com/t/sqnsnvw-cme-error-operation-not-supported/543)
**Author:** [@Brandon\_Dluzen](https://forum.sequans.com/u/Brandon_Dluzen)\ **Replies:** 9\ **Last updated:** [September 16, 2026, 2:51am UTC](https://forum.sequans.com/t/sqnsnvw-cme-error-operation-not-supported/543 "2026-09-16T02:51:14Z")
Hi I’m using the GM02SP with firmware UE8.2.2.1 attempting to add certificates to it using: AT+SQNSNVW=“certificate”,5,788\\r\\n -----BEGIN CERTIFICATE----- CERTIFICATE DATA -----END CERTIFICATE----- but just get +CME… --- ## [DM Light – How to capture IP packets for a specific CID (CID 2 / CID 5)?](https://forum.sequans.com/t/dm-light-how-to-capture-ip-packets-for-a-specific-cid-cid-2-cid-5/593)
**Author:** [@MEZIANE\_Faouzi\_OF](https://forum.sequans.com/u/MEZIANE_Faouzi_OF)\ **Replies:** 1\ **Last updated:** [September 7, 2026, 9:37am UTC](https://forum.sequans.com/t/dm-light-how-to-capture-ip-packets-for-a-specific-cid-cid-2-cid-5/593 "2026-09-07T09:37:52Z")
Hello, We are currently testing IMS/VoLTE on a Calliope 2 GC02S1-EU2, running UE9.1.0.0 / LR9.1.0.0-64547 with the Orange operator profile. With an Orange France SIM (HPLMN 20801), LTE attachment and IMS registration w… --- ## [Modem returns an exception when forcing the operator](https://forum.sequans.com/t/modem-returns-an-exception-when-forcing-the-operator/408)
**Author:** [@Pascal\_Adolphe](https://forum.sequans.com/u/Pascal_Adolphe)\ **Replies:** 13\ **Last updated:** [September 5, 2026, 12:32am UTC](https://forum.sequans.com/t/modem-returns-an-exception-when-forcing-the-operator/408 "2026-09-05T00:32:17Z")
Hi, During PCB production tests, we encountered a strange issue when forcing the operator. The modem throws an exception right after the AT+COPS command! Below is the log: Additionnal info : Modem firmware : 8.2.1… --- ## [GM02SP UE8.2.3.1 fails certificate validation with ISRG Root X2 chains (cURL error 35)](https://forum.sequans.com/t/gm02sp-ue8-2-3-1-fails-certificate-validation-with-isrg-root-x2-chains-curl-error-35/572)
**Author:** [@Klemens\_Grassmann](https://forum.sequans.com/u/Klemens_Grassmann)\ **Replies:** 4\ **Last updated:** [September 4, 2026, 7:46am UTC](https://forum.sequans.com/t/gm02sp-ue8-2-3-1-fails-certificate-validation-with-isrg-root-x2-chains-curl-error-35/572 "2026-09-04T07:46:38Z")
Hello, We are seeing a TLS certificate-validation problem on a Sequans GM02SP running: SEQUANS Communications GM02SP UE8.2.3.1 The modem can connect successfully to a server using an RSA certificate chain trusted thro… --- ## [GM02S attach to different PLMN than requested](https://forum.sequans.com/t/gm02s-attach-to-different-plmn-than-requested/539)
**Author:** [@Ben-AgFlo](https://forum.sequans.com/u/Ben-AgFlo)\ **Replies:** 3\ **Last updated:** [September 3, 2026, 1:16am UTC](https://forum.sequans.com/t/gm02s-attach-to-different-plmn-than-requested/539 "2026-09-03T01:16:08Z")
We’re observing issues throughout our fleet where we ask modem to manually attach to a specific PLMN but in the end it decides on its own to attach to a different one. We’re using Mobile operator Emnify which is a MVNO … --- ## [GM02SP lost cellular RF after LR8.2.1.0 → LR8.2.2.1 upgrade — possible RF calibration/configuration issue](https://forum.sequans.com/t/gm02sp-lost-cellular-rf-after-lr8-2-1-0-lr8-2-2-1-upgrade-possible-rf-calibration-configuration-issue/553)
**Author:** [@Genady\_Zeyfman](https://forum.sequans.com/u/Genady_Zeyfman)\ **Replies:** 5\ **Last updated:** [September 2, 2026, 10:02am UTC](https://forum.sequans.com/t/gm02sp-lost-cellular-rf-after-lr8-2-1-0-lr8-2-2-1-upgrade-possible-rf-calibration-configuration-issue/553 "2026-09-02T10:02:19Z")
Hello, We are HyperTechLab Ltd., an Israeli electronics and embedded systems development company. We are developing a product using the Sequans GM02SP and have encountered a problem after a firmware upgrade. Module in… --- ## [Can not connect server leshan](https://forum.sequans.com/t/can-not-connect-server-leshan/518)
**Author:** [@WEI](https://forum.sequans.com/u/WEI)\ **Replies:** 5\ **Last updated:** [September 1, 2026, 9:36am UTC](https://forum.sequans.com/t/can-not-connect-server-leshan/518 "2026-09-01T09:36:09Z")
record\_2026-07-09-15h14m40.evt (325.9 KB) record\_2026-07-09-15h32m58.evt (279.7 KB) hi I am working with the KIT NEKTAR-EVK Monarch 2 SKY66431 for my COAP connecting to server leshan in using AT command. But I can no… --- ## [SGP.32 support on GM02S?](https://forum.sequans.com/t/sgp-32-support-on-gm02s/525)
**Author:** [@Ben-AgFlo](https://forum.sequans.com/u/Ben-AgFlo)\ **Replies:** 3\ **Last updated:** [August 11, 2026, 9:32pm UTC](https://forum.sequans.com/t/sgp-32-support-on-gm02s/525 "2026-08-11T21:32:42Z")
We wish to move away from plastic SIM in the near future and go with soldered MFF2 eSim device. Our current MVNO provider is starting to offer SGP.32 compliant eSim devices, along with a full suite provisionning portal … --- ## [Does Sequans LTE module support ModemManager?](https://forum.sequans.com/t/does-sequans-lte-module-support-modemmanager/534)
**Author:** [@cmchen](https://forum.sequans.com/u/cmchen)\ **Replies:** 0\ **Last updated:** [July 31, 2026, 12:59pm UTC](https://forum.sequans.com/t/does-sequans-lte-module-support-modemmanager/534 "2026-07-31T12:59:06Z")
Hi, Does Sequans GM02S/GM02SP LTE module support ModemManager? --- ## [MQTT/TCP connection stuck after network loss – recovery only after keep‑alive timeout (Monarch 2, FW 8.2.1.0)](https://forum.sequans.com/t/mqtt-tcp-connection-stuck-after-network-loss-recovery-only-after-keep-alive-timeout-monarch-2-fw-8-2-1-0/400)
**Author:** [@Pascal\_Adolphe](https://forum.sequans.com/u/Pascal_Adolphe)\ **Replies:** 13\ **Last updated:** [July 21, 2026, 8:00am UTC](https://forum.sequans.com/t/mqtt-tcp-connection-stuck-after-network-loss-recovery-only-after-keep-alive-timeout-monarch-2-fw-8-2-1-0/400 "2026-07-21T08:00:49Z")
Hello ! We observe an issue that looks like a TCP half‑open connection on a Monarch 2 modem when using MQTT. Setup: Monarch 2, firmware 8.2.1.0 MQTT over TCP, keep‑alive = 300 s Reproduction: Connect the mo… --- ## [GM02SP fails after some time in operation?](https://forum.sequans.com/t/gm02sp-fails-after-some-time-in-operation/503)
**Author:** [@Thomas\_Drage](https://forum.sequans.com/u/Thomas_Drage)\ **Replies:** 3\ **Last updated:** [July 21, 2026, 8:00am UTC](https://forum.sequans.com/t/gm02sp-fails-after-some-time-in-operation/503 "2026-07-21T08:00:44Z")
Hi, We have a device using the GM02SP modem on the Walter module. We have a number in service and after months of perfect operation, issues are cropping up. Modules stopped accepting TLS certificate uploads via AT+SQN… --- ## [SFU update device not detecting device](https://forum.sequans.com/t/sfu-update-device-not-detecting-device/467)
**Author:** [@Brandon\_Dluzen](https://forum.sequans.com/u/Brandon_Dluzen)\ **Replies:** 12\ **Last updated:** [July 12, 2026, 7:07am UTC](https://forum.sequans.com/t/sfu-update-device-not-detecting-device/467 "2026-07-12T07:07:41Z")
Hi, i was able to update one GM02SP using the SFU, i am trying a different GM02SP the same way using only uart TX/RX at 1.8v logic level. using a logic analyzer i can see request/responses at baud rate 115200 to the mes… --- ## [How does the modem automatically detects the operator mode?](https://forum.sequans.com/t/how-does-the-modem-automatically-detects-the-operator-mode/460)
**Author:** [@Raj](https://forum.sequans.com/u/Raj)\ **Replies:** 1\ **Last updated:** [July 10, 2026, 11:22pm UTC](https://forum.sequans.com/t/how-does-the-modem-automatically-detects-the-operator-mode/460 "2026-07-10T23:22:29Z")
how does the modem automatically detects the operator mode? Can it detect any operator or only selected operators? What should application do when the modem cannot detect the operator correctly and cannot attach? --- ## [Jamming detection capabilities](https://forum.sequans.com/t/jamming-detection-capabilities/489)
**Author:** [@John](https://forum.sequans.com/u/John)\ **Replies:** 2\ **Last updated:** [July 10, 2026, 11:22pm UTC](https://forum.sequans.com/t/jamming-detection-capabilities/489 "2026-07-10T23:22:20Z")
Hi Sequans team, Does Sequans provide any jamming detection capability in its modems/modules? If yes, could you please explain how it works and what information is available to the application when a jamming event is d… --- ## [Calliope 2 remote wake up with USB](https://forum.sequans.com/t/calliope-2-remote-wake-up-with-usb/472)
**Author:** [@Rajenish](https://forum.sequans.com/u/Rajenish)\ **Replies:** 1\ **Last updated:** [July 10, 2026, 12:00am UTC](https://forum.sequans.com/t/calliope-2-remote-wake-up-with-usb/472 "2026-07-10T00:00:07Z")
Describe the remote wake up feature of USB supported by Calliope 2 and configuration needed --- ## [Upcoming issue in nw.do with certificate](https://forum.sequans.com/t/upcoming-issue-in-nw-do-with-certificate/463)
**Author:** [@Thibault\_GUESLIN](https://forum.sequans.com/u/Thibault_GUESLIN)\ **Replies:** 1\ **Last updated:** [June 10, 2026, 5:55pm UTC](https://forum.sequans.com/t/upcoming-issue-in-nw-do-with-certificate/463 "2026-06-10T17:55:39Z")
We are using nw.do to perform request for resolve GPS location (former service from Nestwave) however it seems that the certificate will expire on June 10: Thank you - openssl s\_client -showcerts -connect nw.do:443 … --- ## [Upgrade path for GM02SP ue8.2.0.3](https://forum.sequans.com/t/upgrade-path-for-gm02sp-ue8-2-0-3/433)
**Author:** [@Brandon\_Dluzen](https://forum.sequans.com/u/Brandon_Dluzen)\ **Replies:** 7\ **Last updated:** [June 5, 2026, 12:19am UTC](https://forum.sequans.com/t/upgrade-path-for-gm02sp-ue8-2-0-3/433 "2026-06-05T00:19:28Z")
Hi, currently I’m working with the GM02SP module its firmware is quite low (ue8.2.0.3) what is the proper upgrade path for this? currently I’m pointing it to a https dup file specifically GP02RBAQ-DM\_LR8.2.2.1-63493.du… [Next page](https://forum.sequans.com/latest.md?page=1)