# Legacy HL Series **URL:** https://forum.sierrawireless.com/c/modules/hl-series/32.md?page=1 [Latest](https://forum.sierrawireless.com/latest.md) · [Categories](https://forum.sierrawireless.com/categories.md) · [Tags](https://forum.sierrawireless.com/tags.md) **Page:** 2 --- ## [Query the SKU number](https://forum.sierrawireless.com/t/query-the-sku-number/32034)
**Author:** [@jerry.li](https://forum.sierrawireless.com/u/jerry.li)\ **Replies:** 4\ **Last updated:** [April 9, 2024, 9:18am UTC](https://forum.sierrawireless.com/t/query-the-sku-number/32034 "2024-04-09T09:18:37Z")
Hi. Is there any command to query the SKU number in the HL781x module? --- ## [Enabling +CGEREP Command: Packet Domain Event Reporting](https://forum.sierrawireless.com/t/enabling-cgerep-command-packet-domain-event-reporting/31381)
**Author:** [@zsen](https://forum.sierrawireless.com/u/zsen)\ **Replies:** 3\ **Last updated:** [January 9, 2024, 1:09am UTC](https://forum.sierrawireless.com/t/enabling-cgerep-command-packet-domain-event-reporting/31381 "2024-01-09T01:09:35Z")
Hi, I m working on the HL7812.5.4.10 modem. So I am wondering how to get/enable Packet Domain Event Reporting +CGEV UNSOLICITED messages. I can see I have a +CEREG: 5, +CREG: 5 and a valid pdp context when I run +CGCO… --- ## [Make a voice call and Result Code](https://forum.sierrawireless.com/t/make-a-voice-call-and-result-code/25033)
**Author:** [@josev01](https://forum.sierrawireless.com/u/josev01)\ **Replies:** 8\ **Last updated:** [December 28, 2023, 1:00pm UTC](https://forum.sierrawireless.com/t/make-a-voice-call-and-result-code/25033 "2023-12-28T13:00:41Z")
I want to know why when I make a call with the ATD command. The modem does not return the results of the progress of the call. OK If successfully connected CONNECT Connection has been established RING The DCE has dete… --- ## [+KTCP\_DATA with large data](https://forum.sierrawireless.com/t/ktcp-data-with-large-data/19516)
**Author:** [@rlemburg](https://forum.sierrawireless.com/u/rlemburg)\ **Replies:** 3\ **Last updated:** [November 14, 2023, 3:24pm UTC](https://forum.sierrawireless.com/t/ktcp-data-with-large-data/19516 "2023-11-14T15:24:14Z")
Hello! Hardware: BHL7800-M Firmware: BHL7800-M.3.7.2.3.20191030 I have a general question regarding the handling of +KTCP\_DATA responses with large receive data (\>20000 bytes). In general, after sending data, we are … --- ## [HL7810, MQTT Certs and ERROR code 907](https://forum.sierrawireless.com/t/hl7810-mqtt-certs-and-error-code-907/30941)
**Author:** [@zsen](https://forum.sierrawireless.com/u/zsen)\ **Replies:** 27\ **Last updated:** [November 2, 2023, 1:57am UTC](https://forum.sierrawireless.com/t/hl7810-mqtt-certs-and-error-code-907/30941 "2023-11-02T01:57:19Z")
Hi, I have an hl7810 modem and try to have aws iot connection. I think I need a help to write certs, I did like this: As u know when U create a thing on the aws iot, it will give you 2 root(ca1 and ca2) certs and 3 dif… --- ## [RC6 does not close session causing session exhaustion](https://forum.sierrawireless.com/t/rc6-does-not-close-session-causing-session-exhaustion/30421)
**Author:** [@simon1](https://forum.sierrawireless.com/u/simon1)\ **Replies:** 1\ **Last updated:** [August 10, 2023, 6:53am UTC](https://forum.sierrawireless.com/t/rc6-does-not-close-session-causing-session-exhaustion/30421 "2023-08-10T06:53:04Z")
If the RC76 modem receives a +KTCP\_NOTIF message during socket connection, any attempt to close the session fails. Further connection attempts create a new session, and if these fail too, no more sessions can be created. … --- ## [HL7800 FW upgrade fail](https://forum.sierrawireless.com/t/hl7800-fw-upgrade-fail/29589)
**Author:** [@jerry1](https://forum.sierrawireless.com/u/jerry1)\ **Replies:** 7\ **Last updated:** [April 25, 2023, 5:10am UTC](https://forum.sierrawireless.com/t/hl7800-fw-upgrade-fail/29589 "2023-04-25T05:10:02Z")
Hi, I use Linux to upgrade HL7800 FW. Using sft to upgrade FW will fail. What is the problem? Could anyone help with advice. Thanks. --- ## [HL7692 Android SIM Unlock: Wrong AT command](https://forum.sierrawireless.com/t/hl7692-android-sim-unlock-wrong-at-command/19232)
**Author:** [@sMichi](https://forum.sierrawireless.com/u/sMichi)\ **Replies:** 5\ **Last updated:** [March 7, 2023, 2:26pm UTC](https://forum.sierrawireless.com/t/hl7692-android-sim-unlock-wrong-at-command/19232 "2023-03-07T14:26:25Z")
Hello everyone, I’m trying to integrate android 9 ril software into my Android 9. The kernel I’m using is 4.14.98. HL7692 modem firmware was updated to 2.27. On my android device the modem is connected via USB OTG. T… --- ## [Is the HL8548 module compatibliy with US cellular providers like](https://forum.sierrawireless.com/t/is-the-hl8548-module-compatibliy-with-us-cellular-providers-like/28340)
**Author:** [@bert](https://forum.sierrawireless.com/u/bert)\ **Replies:** 1\ **Last updated:** [November 11, 2022, 10:08pm UTC](https://forum.sierrawireless.com/t/is-the-hl8548-module-compatibliy-with-us-cellular-providers-like/28340 "2022-11-11T22:08:51Z")
I need confirmation if the HL85548 will work with US cellular service providers like: T-Mobile, Verizon, or Spectrum --- ## [HL7800M returning various +CEREG: 2 after wake up without request](https://forum.sierrawireless.com/t/hl7800m-returning-various-cereg-2-after-wake-up-without-request/27810)
**Author:** [@jgaston](https://forum.sierrawireless.com/u/jgaston)\ **Replies:** 3\ **Last updated:** [November 3, 2022, 10:15am UTC](https://forum.sierrawireless.com/t/hl7800m-returning-various-cereg-2-after-wake-up-without-request/27810 "2022-11-03T10:15:55Z")
Hello, We use a HL7800M, over uart, version HL7800-M.4.6.9.4. This issue is starting happening more often: After waking/powering up the HL7800M, it returns various and random +CEREG: 2, +CEREG: 0, +CEREG: 5, without s… --- ## [HL7539 on 3G?](https://forum.sierrawireless.com/t/hl7539-on-3g/28102)
**Author:** [@jg7amd](https://forum.sierrawireless.com/u/jg7amd)\ **Replies:** 8\ **Last updated:** [October 15, 2022, 2:57am UTC](https://forum.sierrawireless.com/t/hl7539-on-3g/28102 "2022-10-15T02:57:05Z")
Hi, Does HL7539 support 3G network such as UMTS, CDMA? I have sent AT+KBND? command then reply 0x0010 and 0x0080 It should be UMTS band. So I wonder HL7539 supports 3G as well. Any information please. --- ## [How to enable airprime hl7588 ping request?](https://forum.sierrawireless.com/t/how-to-enable-airprime-hl7588-ping-request/27927)
**Author:** [@ingenieroit](https://forum.sierrawireless.com/u/ingenieroit)\ **Replies:** 25\ **Last updated:** [September 23, 2022, 1:23pm UTC](https://forum.sierrawireless.com/t/how-to-enable-airprime-hl7588-ping-request/27927 "2022-09-23T13:23:00Z")
I have and Issue to enable airprime hl7588 ping request, I made a lot of test but I didnt have a ping response, did you know how to enable ICMP protocol for 4g Module?. --- ## [Can´t make ping with module HL7588 4G](https://forum.sierrawireless.com/t/can-t-make-ping-with-module-hl7588-4g/27459)
**Author:** [@ingenieroit](https://forum.sierrawireless.com/u/ingenieroit)\ **Replies:** 21\ **Last updated:** [August 16, 2022, 1:32pm UTC](https://forum.sierrawireless.com/t/can-t-make-ping-with-module-hl7588-4g/27459 "2022-08-16T13:32:59Z")
Hi Everyone, I Have a Module 4G HL7588, my problem is that i Can´t make ping to this interface when its connected to a 4G LTE network, if I connect the device to a 3G network the device can make ping, the question is if … --- ## [Sierra Wireless hl7539 boot loop issue](https://forum.sierrawireless.com/t/sierra-wireless-hl7539-boot-loop-issue/27610)
**Author:** [@allicia.gunderman](https://forum.sierrawireless.com/u/allicia.gunderman)\ **Replies:** 1\ **Last updated:** [August 16, 2022, 1:42am UTC](https://forum.sierrawireless.com/t/sierra-wireless-hl7539-boot-loop-issue/27610 "2022-08-16T01:42:02Z")
Hello there, I am in need of help with understanding how this device detects that it has been unplugged or serviced. I repair Sony aibo robots from Japan, which you the HL7539 module for LTE. When I service the units, ev… --- ## [Establishing PPP connection over GPRS using AT commands on HL7588](https://forum.sierrawireless.com/t/establishing-ppp-connection-over-gprs-using-at-commands-on-hl7588/26910)
**Author:** [@engenharia](https://forum.sierrawireless.com/u/engenharia)\ **Replies:** 2\ **Last updated:** [April 30, 2022, 5:25pm UTC](https://forum.sierrawireless.com/t/establishing-ppp-connection-over-gprs-using-at-commands-on-hl7588/26910 "2022-04-30T17:25:23Z")
I’m trying to establish an PPP connection using AT commands on a HL7588 module on a Mangoh Red devkit. I live in Brazil and I’m using a TIM Group SIM chip. I send the following AT commands via UART: AT+CGDCONT=1,“IP”,“t… --- ## [HL7648 Low Power Mode](https://forum.sierrawireless.com/t/hl7648-low-power-mode/26165)
**Author:** [@ppatel](https://forum.sierrawireless.com/u/ppatel)\ **Replies:** 1\ **Last updated:** [February 5, 2022, 2:16am UTC](https://forum.sierrawireless.com/t/hl7648-low-power-mode/26165 "2022-02-05T02:16:18Z")
What low power modes exists for HL7648? I have refered to “AT Commands Interface Guide” and “Product Technical Manual” for HL7648 and I am only seeing reference to “AT+KSLEEP” command that do sleep mode. The is very lit… --- ## [Regarding 78XX sersies](https://forum.sierrawireless.com/t/regarding-78xx-sersies/25895)
**Author:** [@prakash](https://forum.sierrawireless.com/u/prakash)\ **Replies:** 1\ **Last updated:** [January 11, 2022, 3:03am UTC](https://forum.sierrawireless.com/t/regarding-78xx-sersies/25895 "2022-01-11T03:03:51Z")
Hi I am using 7800 HL modem and I am geting below error. Using AT&T SIM. 2010:01:01 00:05:55.156 AWSC \[INF: aws\_cellular\_task.c 531 cellular\_configuration()\] check SIM ready 2010:01:01 00:05:55.165 AWSC \[INF: aws\_… --- ## [Hl6528 auto](https://forum.sierrawireless.com/t/hl6528-auto/25574)
**Author:** [@kalinin.vldmr](https://forum.sierrawireless.com/u/kalinin.vldmr)\ **Replies:** 5\ **Last updated:** [November 25, 2021, 9:23am UTC](https://forum.sierrawireless.com/t/hl6528-auto/25574 "2021-11-25T09:23:30Z")
Hello. Previously we used different HL6528 modems in our devices (except RD and automotive grade). Now we tried to apply HL6528 Automotive grade (HL6528-G2.8V AUTO 1102316). These modems don’t work in our devices -t… --- ## [Multi-IMSI SIM card support on HL modems](https://forum.sierrawireless.com/t/multi-imsi-sim-card-support-on-hl-modems/20826)
**Author:** [@rvadali](https://forum.sierrawireless.com/u/rvadali)\ **Replies:** 3\ **Last updated:** [November 19, 2021, 3:31pm UTC](https://forum.sierrawireless.com/t/multi-imsi-sim-card-support-on-hl-modems/20826 "2021-11-19T15:31:50Z")
We are looking at support for using Multi-IMSI SIM cards with the HL and WP series of modems. Currently when running with SIM cards from Twilio we are seeing two issues: The modem was registering on the network, and ge… --- ## [New and old HL7692?](https://forum.sierrawireless.com/t/new-and-old-hl7692/12841)
**Author:** [@horngmbh](https://forum.sierrawireless.com/u/horngmbh)\ **Replies:** 2\ **Last updated:** [October 20, 2021, 1:08pm UTC](https://forum.sierrawireless.com/t/new-and-old-hl7692/12841 "2021-10-20T13:08:27Z")
Hello, at digikey.com I found two versions of the HL7692: Manufacturer Part No. HL7692 1103454 available HL7692 1103157 obsolete What is the difference between them ? Where there any hardware issues with the obsol… --- ## [HL7812 IoT project](https://forum.sierrawireless.com/t/hl7812-iot-project/25172)
**Author:** [@sebastien.trocherie](https://forum.sierrawireless.com/u/sebastien.trocherie)\ **Replies:** 1\ **Last updated:** [October 19, 2021, 9:57am UTC](https://forum.sierrawireless.com/t/hl7812-iot-project/25172 "2021-10-19T09:57:13Z")
Hi, I’m currently making a project where I connect a sensor to the cloud. After doing some research I think that NB-IoT is very interesting because there is no need to make my own gateway. Since I’m very new to this t… --- ## [HL7692 manual network selection error](https://forum.sierrawireless.com/t/hl7692-manual-network-selection-error/25043)
**Author:** [@ivand](https://forum.sierrawireless.com/u/ivand)\ **Replies:** 11\ **Last updated:** [October 13, 2021, 12:38pm UTC](https://forum.sierrawireless.com/t/hl7692-manual-network-selection-error/25043 "2021-10-13T12:38:16Z")
Hi! I’m trying to implement manual network selection via AT+COPS=1 command, but it always immediately returns “+CME ERROR: operation not supported”. at+cops=? +COPS: (1,"VODAFONE","VODAFONE","25501",7),(1,"UA-KYIVSTAR"… --- ## [Sierra Wireless HL78 dev kit hardware not responding](https://forum.sierrawireless.com/t/sierra-wireless-hl78-dev-kit-hardware-not-responding/25104)
**Author:** [@sridharbe11](https://forum.sierrawireless.com/u/sridharbe11)\ **Replies:** 7\ **Last updated:** [October 5, 2021, 8:57am UTC](https://forum.sierrawireless.com/t/sierra-wireless-hl78-dev-kit-hardware-not-responding/25104 "2021-10-05T08:57:36Z")
I am new in using the HL78 developmet kit and when i connect to test the AT commands via m-center tool getting as Hardware not responding.Not sure what is problem. Will be great if someone could help on this. Regards … --- ## [GSMA TAC number for HL6528](https://forum.sierrawireless.com/t/gsma-tac-number-for-hl6528/16163)
**Author:** [@prakash2983](https://forum.sierrawireless.com/u/prakash2983)\ **Replies:** 4\ **Last updated:** [October 4, 2021, 2:54pm UTC](https://forum.sierrawireless.com/t/gsma-tac-number-for-hl6528/16163 "2021-10-04T14:54:21Z")
Hi all, We are using the HL6528-G module in our product and we also shipped our product to overseas. In Middle east, Government now demanding the GSMA TAC letter for the each product which having Modem. We have search… --- ## [Hl8548-g at+cimi](https://forum.sierrawireless.com/t/hl8548-g-at-cimi/24462)
**Author:** [@Wiviacom](https://forum.sierrawireless.com/u/Wiviacom)\ **Replies:** 6\ **Last updated:** [September 27, 2021, 9:43am UTC](https://forum.sierrawireless.com/t/hl8548-g-at-cimi/24462 "2021-09-27T09:43:01Z")
Hello, I need help with HL8548-G module. I am trying to get IMSI code of SIM card using AT+CIMI command and it is resulting in error. Can you advise what could be a problem? I tried to flash the module to the very late… --- ## [HL8548 difference between old and new version, cops printing](https://forum.sierrawireless.com/t/hl8548-difference-between-old-and-new-version-cops-printing/24460)
**Author:** [@mindaugas.s](https://forum.sierrawireless.com/u/mindaugas.s)\ **Replies:** 8\ **Last updated:** [September 9, 2021, 4:21am UTC](https://forum.sierrawireless.com/t/hl8548-difference-between-old-and-new-version-cops-printing/24460 "2021-09-09T04:21:52Z")
Hello, We have HL8548 modems with old firmware (5.5.22.0) and with new (5.5.26.0). Modems with old firmware, when startup print lines: +CREG:2 +CREG:5 +COPS: 0,0, “Telia LT”,2 line. And modems with new version prin… --- ## [HL7692 - KTCPSND does not end transmission without sending --EOF--Pattern--](https://forum.sierrawireless.com/t/hl7692-ktcpsnd-does-not-end-transmission-without-sending-eof-pattern/24736)
**Author:** [@mt\_0x](https://forum.sierrawireless.com/u/mt_0x)\ **Replies:** 7\ **Last updated:** [September 7, 2021, 7:26am UTC](https://forum.sierrawireless.com/t/hl7692-ktcpsnd-does-not-end-transmission-without-sending-eof-pattern/24736 "2021-09-07T07:26:00Z")
Hi, according to documentation sending --EOF–Pattern-- after +KTCPSEND is optional if ndata bytes are sent. But this seems to be not true. Im sending 3 bytes of data on serial using AT+GMR RHL769x.2.26.180400.2018021… --- ## [Modem HL8548 new firmware (5.5.26.0) connection problems](https://forum.sierrawireless.com/t/modem-hl8548-new-firmware-5-5-26-0-connection-problems/24727)
**Author:** [@mindaugas.s](https://forum.sierrawireless.com/u/mindaugas.s)\ **Replies:** 44\ **Last updated:** [September 6, 2021, 10:10am UTC](https://forum.sierrawireless.com/t/modem-hl8548-new-firmware-5-5-26-0-connection-problems/24727 "2021-09-06T10:10:31Z")
Hello, We have HL8548 modems with old firmware (5.5.22.0) and with new (5.5.26.0). We are connecting modems to converters. The converters has connection to the network only using modems with the old firmware (5.5.22.0)… --- ## [How to download a file from a webserver with HL7648](https://forum.sierrawireless.com/t/how-to-download-a-file-from-a-webserver-with-hl7648/24712)
**Author:** [@roman.chak](https://forum.sierrawireless.com/u/roman.chak)\ **Replies:** 9\ **Last updated:** [August 29, 2021, 9:48am UTC](https://forum.sierrawireless.com/t/how-to-download-a-file-from-a-webserver-with-hl7648/24712 "2021-08-29T09:48:33Z")
Hi, I am trying to download a file from my webserver with a POST request, but the module becomes unresponsive. Can the following sequence of commands be used to get a file from a webserver? AT+KTCPCFG=1,0,url.com,80 AT… --- ## [Question on DLE character handling in receive data when using KUDPSTART on HL7800M](https://forum.sierrawireless.com/t/question-on-dle-character-handling-in-receive-data-when-using-kudpstart-on-hl7800m/24673)
**Author:** [@jburch](https://forum.sierrawireless.com/u/jburch)\ **Replies:** 1\ **Last updated:** [August 25, 2021, 2:45am UTC](https://forum.sierrawireless.com/t/question-on-dle-character-handling-in-receive-data-when-using-kudpstart-on-hl7800m/24673 "2021-08-25T02:45:46Z")
I’m confused by the Notes for AT+KUDPSTART not matching the behavior of the HL7800M. The transmit side makes complete sense and I have that working. However, on the receive side I don’t see any notes regarding the beha… [Previous page](https://forum.sierrawireless.com/c/modules/hl-series/32.md) [Next page](https://forum.sierrawireless.com/c/modules/hl-series/32.md?page=2)