# General wireless topics **URL:** https://forum.sierrawireless.com/c/modules/general-wireless-topics/31.md [Latest](https://forum.sierrawireless.com/latest.md) · [Categories](https://forum.sierrawireless.com/categories.md) · [Tags](https://forum.sierrawireless.com/tags.md) --- ## [About the General wireless topics category](https://forum.sierrawireless.com/t/about-the-general-wireless-topics-category/37)
**Author:** [@system](https://forum.sierrawireless.com/u/system)\ **Replies:** 0\ **Last updated:** [February 18, 2006, 3:23pm UTC](https://forum.sierrawireless.com/t/about-the-general-wireless-topics-category/37 "2006-02-18T15:23:39Z")
Network-related topics, SIM card issues, power supply, antenna design, 3GPP standards, certification and regulatory approvals, … --- ## [Request for Guidance on 2G/3G/4G Network Testing on HL7812 EVK](https://forum.sierrawireless.com/t/request-for-guidance-on-2g-3g-4g-network-testing-on-hl7812-evk/35739)
**Author:** [@vagesh.p](https://forum.sierrawireless.com/u/vagesh.p)\ **Replies:** 3\ **Last updated:** [January 28, 2026, 5:19am UTC](https://forum.sierrawireless.com/t/request-for-guidance-on-2g-3g-4g-network-testing-on-hl7812-evk/35739 "2026-01-28T05:19:26Z")
We are currently testing the HL7812 EVK and would like your guidance on validating cellular network connectivity and data services. Our team is testing from Shanghai, China, where have live networks are available. We ha… --- ## [MLI (modem log interface) UART3](https://forum.sierrawireless.com/t/mli-modem-log-interface-uart3/34549)
**Author:** [@jrobinson2](https://forum.sierrawireless.com/u/jrobinson2)\ **Replies:** 2\ **Last updated:** [February 27, 2025, 2:32pm UTC](https://forum.sierrawireless.com/t/mli-modem-log-interface-uart3/34549 "2025-02-27T14:32:07Z")
The HL7800 user guide suggests adding test points for debugging the modem on UART3. From the Datasheet it seems that UART0 will stream the modem logs but potential UART3 will store these logs? Where can I get more inform… --- ## [EM7345 firmware versions change log](https://forum.sierrawireless.com/t/em7345-firmware-versions-change-log/7923)
**Author:** [@Puppy](https://forum.sierrawireless.com/u/Puppy)\ **Replies:** 10\ **Last updated:** [August 18, 2017, 11:23am UTC](https://forum.sierrawireless.com/t/em7345-firmware-versions-change-log/7923 "2017-08-18T11:23:53Z")
Is possible to get change log for firmware versions ? It seems as the recent version 1442.07 have actually more issues than previous 1415.07 one. Thanks. --- ## [How it works? 4G or 5G modem with M2 and integrated eSIM](https://forum.sierrawireless.com/t/how-it-works-4g-or-5g-modem-with-m2-and-integrated-esim/34239)
**Author:** [@jly](https://forum.sierrawireless.com/u/jly)\ **Replies:** 5\ **Last updated:** [January 3, 2025, 8:53am UTC](https://forum.sierrawireless.com/t/how-it-works-4g-or-5g-modem-with-m2-and-integrated-esim/34239 "2025-01-03T08:53:39Z")
Hello, I am a project manager and I would like to know how to use an eSIM. We have an M2 Key B slot available on an evaluation board, and we would like to test a 4G or 5G modem with an integrated eSIM. Is this possible?… --- ## [XR-60 cant report GPS data to remote server. (Tablet Command)](https://forum.sierrawireless.com/t/xr-60-cant-report-gps-data-to-remote-server-tablet-command/33764)
**Author:** [@john.gallagher](https://forum.sierrawireless.com/u/john.gallagher)\ **Replies:** 3\ **Last updated:** [November 22, 2024, 8:41pm UTC](https://forum.sierrawireless.com/t/xr-60-cant-report-gps-data-to-remote-server-tablet-command/33764 "2024-11-22T20:41:03Z")
I have 4 XR60’s installed in public safety vehicles. The fire agency uses an application called tablet command(TBLTCMD) to track the GPS location of vehicles. Typically the vehicles have IPADs assigned to run TBLTCMD, bu… --- ## [Skylight logs / MC7304](https://forum.sierrawireless.com/t/skylight-logs-mc7304/33937)
**Author:** [@krystian.chrupek](https://forum.sierrawireless.com/u/krystian.chrupek)\ **Replies:** 5\ **Last updated:** [November 1, 2024, 11:06am UTC](https://forum.sierrawireless.com/t/skylight-logs-mc7304/33937 "2024-11-01T11:06:23Z")
Hi everyone, I was hoping you can guys help me getting logs from the Skylight app, I’m after logs which could show history of the connection, would be great to see: when connection was established when connection was … --- ## [EM 7565 configuration interruption impact, if any?](https://forum.sierrawireless.com/t/em-7565-configuration-interruption-impact-if-any/32097)
**Author:** [@pmonnie](https://forum.sierrawireless.com/u/pmonnie)\ **Replies:** 6\ **Last updated:** [May 15, 2024, 9:19am UTC](https://forum.sierrawireless.com/t/em-7565-configuration-interruption-impact-if-any/32097 "2024-05-15T09:19:59Z")
Hello It is well known there can be modem problems if a modem firmware upload is interrupted … like for example a power cut in the middle of the upload/installation sequence … But I do not find anything about possible … --- ## [RV50X Fota State](https://forum.sierrawireless.com/t/rv50x-fota-state/29029)
**Author:** [@lhunnewell](https://forum.sierrawireless.com/u/lhunnewell)\ **Replies:** 19\ **Last updated:** [November 15, 2023, 9:16am UTC](https://forum.sierrawireless.com/t/rv50x-fota-state/29029 "2023-11-15T09:16:29Z")
I’m seeing an unusual line of code (to me) in the system log of one of my RV50X gateways. notice ALEOS\_CELL\_RadioTask: GetFotaState: could not find fota state from command AT.DMREAD=“5/0/3” The modem has been in the fi… --- ## [RV55 model 1104302 unable to retrieve data from network](https://forum.sierrawireless.com/t/rv55-model-1104302-unable-to-retrieve-data-from-network/31041)
**Author:** [@bmeyers](https://forum.sierrawireless.com/u/bmeyers)\ **Replies:** 4\ **Last updated:** [November 15, 2023, 5:11am UTC](https://forum.sierrawireless.com/t/rv55-model-1104302-unable-to-retrieve-data-from-network/31041 "2023-11-15T05:11:24Z")
I have an RV55 model 1104302 pro router. Originally, I bought this for use in North America however our North American factory no longer needed it so we wanted to re-use the hardware in Thailand. I have an active SIM ca… --- ## [Routing table changes automatically on mangOH yellow](https://forum.sierrawireless.com/t/routing-table-changes-automatically-on-mangoh-yellow/30299)
**Author:** [@ravneet.singh.iitd](https://forum.sierrawireless.com/u/ravneet.singh.iitd)\ **Replies:** 7\ **Last updated:** [July 26, 2023, 12:00pm UTC](https://forum.sierrawireless.com/t/routing-table-changes-automatically-on-mangoh-yellow/30299 "2023-07-26T12:00:27Z")
Hi, I am struggling to run wifi properly on my mangOH yellow device. I am able to start wlan0 and connect to wifi and the internet using a static ip (here 192.168.1.26) and setting a default gateway of my router (192.16… --- ## [Bx3105 Guru Meditation Error](https://forum.sierrawireless.com/t/bx3105-guru-meditation-error/30209)
**Author:** [@saraiahdadi](https://forum.sierrawireless.com/u/saraiahdadi)\ **Replies:** 1\ **Last updated:** [July 14, 2023, 9:14am UTC](https://forum.sierrawireless.com/t/bx3105-guru-meditation-error/30209 "2023-07-14T09:14:58Z")
Hi, I am working with Bx3105 with custom MCU board (STM32F413ZHT6) to send the data to MQTT server whenever the network is restarting, then I am getting Guru Meditation Error. Please help me solve the issue. --- ## [What does the command "cm data connect" do?](https://forum.sierrawireless.com/t/what-does-the-command-cm-data-connect-do/30077)
**Author:** [@elijah](https://forum.sierrawireless.com/u/elijah)\ **Replies:** 2\ **Last updated:** [June 27, 2023, 4:59pm UTC](https://forum.sierrawireless.com/t/what-does-the-command-cm-data-connect-do/30077 "2023-06-27T16:59:16Z")
Hi, I was looking at the Legato cm commands from their website and would like to know what is actually happening when you call “cm data connect” all they say is “Start a data connection.” Also, what is the difference b… --- ## [BIP protocol over IR1101 Cisco with Sierra](https://forum.sierrawireless.com/t/bip-protocol-over-ir1101-cisco-with-sierra/29877)
**Author:** [@raffaele.tostini](https://forum.sierrawireless.com/u/raffaele.tostini)\ **Replies:** 1\ **Last updated:** [May 30, 2023, 9:15am UTC](https://forum.sierrawireless.com/t/bip-protocol-over-ir1101-cisco-with-sierra/29877 "2023-05-30T09:15:13Z")
Hello, Does EM7455 or other devices on Cisco IR1101 support BIP? Thank you, I am searching for eUICC on IR1101 --- ## [Sierra Wireless Em7430 ( Insert Sim ) And COM Error code 10](https://forum.sierrawireless.com/t/sierra-wireless-em7430-insert-sim-and-com-error-code-10/28489)
**Author:** [@abdurrahman.nibras05](https://forum.sierrawireless.com/u/abdurrahman.nibras05)\ **Replies:** 1\ **Last updated:** [December 1, 2022, 7:40am UTC](https://forum.sierrawireless.com/t/sierra-wireless-em7430-insert-sim-and-com-error-code-10/28489 "2022-12-01T07:40:28Z")
Hi, my sierra wireless em7430 has stopped working this morning. It started when I tried to turn on cellular on windows 10 (Laptop is Lenovo X1 Carbon Gen5), Yesterday I was able to connect to internet using the WWAN card… --- ## [IoT Modules 5G EM9190 getting Base Station coordinates](https://forum.sierrawireless.com/t/iot-modules-5g-em9190-getting-base-station-coordinates/28000)
**Author:** [@achyut.shrestha](https://forum.sierrawireless.com/u/achyut.shrestha)\ **Replies:** 2\ **Last updated:** [October 13, 2022, 9:09pm UTC](https://forum.sierrawireless.com/t/iot-modules-5g-em9190-getting-base-station-coordinates/28000 "2022-10-13T21:09:36Z")
Please guide me if the Sierra Wireless 5G Development Board Kit EM9190 has the option to receive/capture the Base Station coordinates. Please point me to any related Tech/Reference Document on this. Thank you. --- ## [LX60 Aleos Softw 4.15.3 and Radio FW WP6707\_02.37.03.00 GENERIC couldn't find to set/change APN](https://forum.sierrawireless.com/t/lx60-aleos-softw-4-15-3-and-radio-fw-wp6707-02-37-03-00-generic-couldnt-find-to-set-change-apn/28112)
**Author:** [@jan1](https://forum.sierrawireless.com/u/jan1)\ **Replies:** 1\ **Last updated:** [October 13, 2022, 1:47pm UTC](https://forum.sierrawireless.com/t/lx60-aleos-softw-4-15-3-and-radio-fw-wp6707-02-37-03-00-generic-couldnt-find-to-set-change-apn/28112 "2022-10-13T13:47:00Z")
After updated the LX60 to Aleos Software Version 4.15.3 Aleos Build number 003 and Radio Module Type WP7607 Radio Module Identifier Generic , Radio Firmware Version SWI907Y\_02.37.03.00 73df45 jenkins 2020/04/08. It isn… --- ## [Diversity on LTE modems - Do I need it - some clarification please?](https://forum.sierrawireless.com/t/diversity-on-lte-modems-do-i-need-it-some-clarification-please/17002)
**Author:** [@sciscitatio](https://forum.sierrawireless.com/u/sciscitatio)\ **Replies:** 4\ **Last updated:** [April 22, 2022, 10:46pm UTC](https://forum.sierrawireless.com/t/diversity-on-lte-modems-do-i-need-it-some-clarification-please/17002 "2022-04-22T22:46:10Z")
I’m looking for some clarification about the operation of the DIV antenna port on the WP7607 LTE module, as there seems to be conflicting information or viewpoints out there. My application doesn’t require high data rat… --- ## [GPS data EM7345 on Linux](https://forum.sierrawireless.com/t/gps-data-em7345-on-linux/7629)
**Author:** [@tuxman](https://forum.sierrawireless.com/u/tuxman)\ **Replies:** 7\ **Last updated:** [July 11, 2022, 7:56am UTC](https://forum.sierrawireless.com/t/gps-data-em7345-on-linux/7629 "2022-07-11T07:56:42Z")
Hello, how can I get the GPS/GLONAS data under Linux? I only see 2 devices ttyAC0 and cdc-wdm0. cdc-wdm0 is the pure binary part of MBIM. on ttyAC0 there I can send AT commands. Thanks, for any help. --- ## [Working LTE Connection drops randomly during the day and recovers](https://forum.sierrawireless.com/t/working-lte-connection-drops-randomly-during-the-day-and-recovers/27215)
**Author:** [@maximilian.fenkart](https://forum.sierrawireless.com/u/maximilian.fenkart)\ **Replies:** 5\ **Last updated:** [June 22, 2022, 8:40am UTC](https://forum.sierrawireless.com/t/working-lte-connection-drops-randomly-during-the-day-and-recovers/27215 "2022-06-22T08:40:30Z")
Hi, we have the following situation, multiple devices throughout Europe using a Sierra Wireless MC7455 module with a SIM-Card for LTE connection, during the day while operating more or less every day the connection drop… --- ## [Wireless Protocols](https://forum.sierrawireless.com/t/wireless-protocols/24629)
**Author:** [@tikilight](https://forum.sierrawireless.com/u/tikilight)\ **Replies:** 1\ **Last updated:** [August 25, 2021, 8:53am UTC](https://forum.sierrawireless.com/t/wireless-protocols/24629 "2021-08-25T08:53:27Z")
What kinds of wireless protocols are used in the Airlink routers and gateways? Are these protocols able to connect to cloud services? --- ## [EM7455 - Stateless and/or statefull?](https://forum.sierrawireless.com/t/em7455-stateless-and-or-statefull/22623)
**Author:** [@boazso](https://forum.sierrawireless.com/u/boazso)\ **Replies:** 1\ **Last updated:** [January 20, 2021, 6:45am UTC](https://forum.sierrawireless.com/t/em7455-stateless-and-or-statefull/22623 "2021-01-20T06:45:01Z")
Hi, Does EM7455 always use SLAAC for IPv6 addressing, or is this assumption wrong and we should inspect the RA message for the “Managed” bit? --- ## [EM7455 - IPV4V6 question](https://forum.sierrawireless.com/t/em7455-ipv4v6-question/22624)
**Author:** [@boazso](https://forum.sierrawireless.com/u/boazso)\ **Replies:** 1\ **Last updated:** [January 20, 2021, 2:33am UTC](https://forum.sierrawireless.com/t/em7455-ipv4v6-question/22624 "2021-01-20T02:33:35Z")
Hello, When creating a dual-stack connection using ‘at+cgdcont=1,“IPV4V6”,“some-apn”’, is it possible that one connection (e.g. IPv6) will fail while the other remain? Assuming we are checking that internet is reachable… --- ## [EM7455 IPv4 and IPv6 connections - use two PDNs with same APN?](https://forum.sierrawireless.com/t/em7455-ipv4-and-ipv6-connections-use-two-pdns-with-same-apn/22613)
**Author:** [@boazso](https://forum.sierrawireless.com/u/boazso)\ **Replies:** 3\ **Last updated:** [January 19, 2021, 11:07am UTC](https://forum.sierrawireless.com/t/em7455-ipv4-and-ipv6-connections-use-two-pdns-with-same-apn/22613 "2021-01-19T11:07:05Z")
Using EM7455 in AT mode on a Linux host, is it possible to create two separate PDNs with same APN, and have one use IPv4 and the other IPv6? For example: +CGDCONT: 1, “IP”,“some-apn” +CGDCONT:2, “IPV6”,“some-apn” !sca… --- ## [Skylight software](https://forum.sierrawireless.com/t/skylight-software/21824)
**Author:** [@mikefawcett](https://forum.sierrawireless.com/u/mikefawcett)\ **Replies:** 1\ **Last updated:** [October 16, 2020, 9:37am UTC](https://forum.sierrawireless.com/t/skylight-software/21824 "2020-10-16T09:37:56Z")
Hi everyone, I am having a hard time with the skylight connection software. It seems any time I change a setting, and click save… that setting doesn’t always get applied. Or it saves it for a few minutes, and then whe… --- ## [Network selection (+COPS,+CPOL+CPLS)](https://forum.sierrawireless.com/t/network-selection-cops-cpol-cpls/19783)
**Author:** [@GaryATodd](https://forum.sierrawireless.com/u/GaryATodd)\ **Replies:** 5\ **Last updated:** [August 13, 2020, 7:40am UTC](https://forum.sierrawireless.com/t/network-selection-cops-cpol-cpls/19783 "2020-08-13T07:40:14Z")
Hi, My understanding of AT+COPS=? is that it returns a list of detected PLMNs. Are these in any particular order (e.g. signal strength)? If the module returns PLMNs x,y,z and has automatically registered to x, and the… --- ## [GX440 wont connect to LTE](https://forum.sierrawireless.com/t/gx440-wont-connect-to-lte/21027)
**Author:** [@andrew1](https://forum.sierrawireless.com/u/andrew1)\ **Replies:** 2\ **Last updated:** [July 27, 2020, 2:28am UTC](https://forum.sierrawireless.com/t/gx440-wont-connect-to-lte/21027 "2020-07-27T02:28:01Z")
I have a GX440 with a Proxicast 4G / LTE Cross-Polarized (MIMO) 7-10 dBi High-Gain Fixed-Mount Panel Antenna connected. It will only connect to 3G service at 1 Mbps where my phone will connect to LTE at 20 Mbps. Is there… --- ## [Send APDU commands to SIM under UEFI](https://forum.sierrawireless.com/t/send-apdu-commands-to-sim-under-uefi/20577)
**Author:** [@e.pavlenko](https://forum.sierrawireless.com/u/e.pavlenko)\ **Replies:** 1\ **Last updated:** [July 21, 2020, 3:44am UTC](https://forum.sierrawireless.com/t/send-apdu-commands-to-sim-under-uefi/20577 "2020-07-21T03:44:37Z")
Hi, all. I have AirPrime EM7455 modem at Lenovo Thinkpad notebook and I need to send APDU commands to SIM under UEFI by AT commands to modem (or directly, if it possible). What is the right way to do it, how to find th… --- ## [WS6318-Airprime-TAC Certificate](https://forum.sierrawireless.com/t/ws6318-airprime-tac-certificate/20970)
**Author:** [@narendra.kumar](https://forum.sierrawireless.com/u/narendra.kumar)\ **Replies:** 0\ **Last updated:** [July 20, 2020, 5:46am UTC](https://forum.sierrawireless.com/t/ws6318-airprime-tac-certificate/20970 "2020-07-20T05:46:36Z")
Hello, I have WS6318 embedded in a fire alarm to notify the party by sms in case of any fire. I would need the TAC certificate of WS6318 for local government approval. Kindly share the data if you have the certificate o… --- ## [SL8082BT S3\_0\_0\_5FAP is the "non openAT" firmware?](https://forum.sierrawireless.com/t/sl8082bt-s3-0-0-5fap-is-the-non-openat-firmware/12678)
**Author:** [@sontranquang](https://forum.sierrawireless.com/u/sontranquang)\ **Replies:** 1\ **Last updated:** [June 18, 2020, 7:11am UTC](https://forum.sierrawireless.com/t/sl8082bt-s3-0-0-5fap-is-the-non-openat-firmware/12678 "2020-06-18T07:11:20Z")
I’m Tran Quang Son from HPE, Vietnam. We purchased some SL8082BT module from Shenzen Hurryup technology Co.,Ltd. Firmware of this module is: S3\_0\_0\_5FAP R2256 CNSHZ-ED-FW0011 2014/09/01 14:18:55 is the “non openAT” f… [Next page](https://forum.sierrawireless.com/c/modules/general-wireless-topics/31.md?page=1)