# \#lte-m **URL:** https://forums.digi.com/tag/lte-m/3780.md [Latest](https://forums.digi.com/latest.md) · [Categories](https://forums.digi.com/categories.md) · [Tags](https://forums.digi.com/tags.md) --- ## [Xbee 3 Global LTE-M/NB-IoT Low Power - Operation in Canada](https://forums.digi.com/t/xbee-3-global-lte-m-nb-iot-low-power-operation-in-canada/36982)
**Author:** [@Larry\_Sellers](https://forums.digi.com/u/Larry_Sellers)\ **Replies:** 3\ **Last updated:** [May 28, 2025, 5:00pm UTC](https://forums.digi.com/t/xbee-3-global-lte-m-nb-iot-low-power-operation-in-canada/36982 "2025-05-28T17:00:14Z")
Hello, We sent some devices with XBee 3 Global LTE-M/NB-IoT Low Power modules up to Canada and I am not having luck with them connecting to any cellular network up there. I am wondering if there are any specific setting… --- ## [XBee 3 sometimes can't register to LTE-M after exiting sleep with PSM enabled](https://forums.digi.com/t/xbee-3-sometimes-cant-register-to-lte-m-after-exiting-sleep-with-psm-enabled/23241)
**Author:** [@juliantbrown](https://forums.digi.com/u/juliantbrown)\ **Replies:** 2\ **Last updated:** [March 3, 2023, 1:14am UTC](https://forums.digi.com/t/xbee-3-sometimes-cant-register-to-lte-m-after-exiting-sleep-with-psm-enabled/23241 "2023-03-03T01:14:07Z")
We have an XBee 3 device in system that is used to communicate to our backend over LTE-M. I have enabled PSM with bit 3 of the DO (device options) register and have enabled pin sleep using the SM (sleep mode) register. I… --- ## [XBee 3 LTE-M pppd problem](https://forums.digi.com/t/xbee-3-lte-m-pppd-problem/23277)
**Author:** [@rosz](https://forums.digi.com/u/rosz)\ **Replies:** 1\ **Last updated:** [November 9, 2022, 12:59pm UTC](https://forums.digi.com/t/xbee-3-lte-m-pppd-problem/23277 "2022-11-09T12:59:38Z")
Hi, I’m having a problem with the XBee 3 LTE-M module. When using pppd to connect to the LTE network it hangs up and freezes - if the pppd is run right after our device is powered on. If I wait 3-5 mins and then run ppp… --- ## [What could cause XBee3 LTEM/NB-IoT modem to lose profile](https://forums.digi.com/t/what-could-cause-xbee3-ltem-nb-iot-modem-to-lose-profile/23256)
**Author:** [@acpie360](https://forums.digi.com/u/acpie360)\ **Replies:** 3\ **Last updated:** [October 12, 2022, 11:20am UTC](https://forums.digi.com/t/what-could-cause-xbee3-ltem-nb-iot-modem-to-lose-profile/23256 "2022-10-12T11:20:38Z")
We are using the XBee3 LTEM/NB-IoT modem (u-blox SARA-R410M-02B-01 cellular module), configured for 115200 baud and API operating mode. We run our own 32-bit processor behind the Digi modem, using XBee ANSI C library wri… --- ## [Is there an Arduino port for the xbee ansi c library?](https://forums.digi.com/t/is-there-an-arduino-port-for-the-xbee-ansi-c-library/22870)
**Author:** [@bvernham](https://forums.digi.com/u/bvernham)\ **Replies:** 2\ **Last updated:** [December 27, 2021, 9:01am UTC](https://forums.digi.com/t/is-there-an-arduino-port-for-the-xbee-ansi-c-library/22870 "2021-12-27T09:01:32Z")
Does anyone know if there is an Arduino port for the XBEE ANSI library? Thanks Bruce --- ## [Digi XBee 3 Cellular LTE-M/NB-IoT modem direct communication](https://forums.digi.com/t/digi-xbee-3-cellular-lte-m-nb-iot-modem-direct-communication/22868)
**Author:** [@bvernham](https://forums.digi.com/u/bvernham)\ **Replies:** 3\ **Last updated:** [December 22, 2021, 4:19pm UTC](https://forums.digi.com/t/digi-xbee-3-cellular-lte-m-nb-iot-modem-direct-communication/22868 "2021-12-22T16:19:45Z")
Is is possible to communicate directly with the u-blox SARA-R410M-02B on the above mentioned XBEE module? There are several popular libraries to communicate with the UBLOX module directly but I have not found any that c… --- ## [FTP read/write my FTP site Digi XBee 3 Cellular LTE-M/NB-IoT ATT Service](https://forums.digi.com/t/ftp-read-write-my-ftp-site-digi-xbee-3-cellular-lte-m-nb-iot-att-service/22515)
**Author:** [@WesleyB](https://forums.digi.com/u/WesleyB)\ **Replies:** 5\ **Last updated:** [July 11, 2021, 6:45am UTC](https://forums.digi.com/t/ftp-read-write-my-ftp-site-digi-xbee-3-cellular-lte-m-nb-iot-att-service/22515 "2021-07-11T06:45:06Z")
I purchased a LTE-M module early and was disappointed that with ATT I could not send an SMS message. So I have not worked with it anymore until now. I am wondering if with ATT service I can read/write a short file to a F… --- ## [xbee3 Firmware upgrade for cellular module does not work](https://forums.digi.com/t/xbee3-firmware-upgrade-for-cellular-module-does-not-work/22451)
**Author:** [@rutvij.trivedi](https://forums.digi.com/u/rutvij.trivedi)\ **Replies:** 4\ **Last updated:** [June 21, 2021, 8:28am UTC](https://forums.digi.com/t/xbee3-firmware-upgrade-for-cellular-module-does-not-work/22451 "2021-06-21T08:28:42Z")
Hi, I am working with xbee3 cellular module to be in bypass mode. My module has 11516 firmware and I tried to install upgrade for cellular u-blox sara r4. In this process it installs Qualcomm USB drivers and my two sw… --- ## [Multiple XBee3 Cat-M/NB-IoT bricked after 11417 failed update](https://forums.digi.com/t/multiple-xbee3-cat-m-nb-iot-bricked-after-11417-failed-update/22439)
**Author:** [@Larry\_Sellers](https://forums.digi.com/u/Larry_Sellers)\ **Replies:** 3\ **Last updated:** [May 27, 2021, 4:28pm UTC](https://forums.digi.com/t/multiple-xbee3-cat-m-nb-iot-bricked-after-11417-failed-update/22439 "2021-05-27T16:28:51Z")
Good morning, I am starting to accumulate bricked XBee3 LTE-M units. The issue seems to occur when I attempt to update devices to 11417 from 11415 firmware. I don’t recall ever having success updating to 11417 firmwar… --- ## [Does there need to be a minimum distance between Xbee 3 LTE-M/NB-IoT devices when transmitting?](https://forums.digi.com/t/does-there-need-to-be-a-minimum-distance-between-xbee-3-lte-m-nb-iot-devices-when-transmitting/22360)
**Author:** [@samson49](https://forums.digi.com/u/samson49)\ **Replies:** 6\ **Last updated:** [April 26, 2021, 9:22am UTC](https://forums.digi.com/t/does-there-need-to-be-a-minimum-distance-between-xbee-3-lte-m-nb-iot-devices-when-transmitting/22360 "2021-04-26T09:22:52Z")
I have several devices (anywhere from 5-30) using Xbee 3 LTE-M/NB-IoT modems and have noticed an issue with receiving data from the units as I start to add more to the testing group. They all transmit at the same time a… --- ## [Xbee3 LTE-M supports 'simple' UDP?](https://forums.digi.com/t/xbee3-lte-m-supports-simple-udp/20475)
**Author:** [@cartchunk](https://forums.digi.com/u/cartchunk)\ **Replies:** 2\ **Last updated:** [December 28, 2020, 9:29am UTC](https://forums.digi.com/t/xbee3-lte-m-supports-simple-udp/20475 "2020-12-28T09:29:35Z")
I’m looking to incorporate Xbee3 LTE-M as a backup communications path in a \[product that currently uses copper ethernet. It’s generally a low-density (1 packet every few minutes) using XML-wrapped data in a single UDP p… --- ## [How do I get LTE XBee3's to work with Hologram.io's Network](https://forums.digi.com/t/how-do-i-get-lte-xbee3s-to-work-with-hologram-ios-network/19931)
**Author:** [@SRGDamiano](https://forums.digi.com/u/SRGDamiano)\ **Replies:** 2\ **Last updated:** [December 2, 2020, 11:27am UTC](https://forums.digi.com/t/how-do-i-get-lte-xbee3s-to-work-with-hologram-ios-network/19931 "2020-12-02T11:27:35Z")
Has anyone been able to connect one of the LTE (Cat1 or Cat-M) XBee’s to hologram.io’s network? Hologram tells me that that any AT&T or Verizon device should work on their network, but I cannot get a connection. I am a… --- ## [Xbee 3 LTE-M signal strength command "DB" range](https://forums.digi.com/t/xbee-3-lte-m-signal-strength-command-db-range/21867)
**Author:** [@tpeterson](https://forums.digi.com/u/tpeterson)\ **Replies:** 7\ **Last updated:** [October 19, 2020, 1:35pm UTC](https://forums.digi.com/t/xbee-3-lte-m-signal-strength-command-db-range/21867 "2020-10-19T13:35:52Z")
Hi, I am using an Xbee3 LTE-M/NBIot modem, and currently it is connected and sending fine. However, the response to the “DB” signal strength command is coming back as 45d, which is not in the range of the response in th… --- ## [MAC address for Xbee3 LTE-M module](https://forums.digi.com/t/mac-address-for-xbee3-lte-m-module/21800)
**Author:** [@rutvij.trivedi](https://forums.digi.com/u/rutvij.trivedi)\ **Replies:** 12\ **Last updated:** [September 25, 2020, 9:50am UTC](https://forums.digi.com/t/mac-address-for-xbee3-lte-m-module/21800 "2020-09-25T09:50:51Z")
Hi, I am working on Xbee3 LTE-M module. I want MAC address of this module but in finding so i was unable to get MAC address information in Revision history—90002253 guide. Currently I am using firmware version XBXC-11… --- ## [XBee3 LTE-M/NB-IoT Unable to make incoming TCP connections after waking from cyclic sleep](https://forums.digi.com/t/xbee3-lte-m-nb-iot-unable-to-make-incoming-tcp-connections-after-waking-from-cyclic-sleep/21740)
**Author:** [@DonaldB](https://forums.digi.com/u/DonaldB)\ **Replies:** 11\ **Last updated:** [September 11, 2020, 9:42am UTC](https://forums.digi.com/t/xbee3-lte-m-nb-iot-unable-to-make-incoming-tcp-connections-after-waking-from-cyclic-sleep/21740 "2020-09-11T09:42:35Z")
I am currently evaluating the XBee3 Cellular LTE-M/NB-IoT for use in one of our products. I have been experimenting with cyclic sleep mode and incoming TCP connections and I believe that I have found a bug. Here is wha… --- ## [LTE-M/NB-IoT not registering with network after power cycle with PSM active](https://forums.digi.com/t/lte-m-nb-iot-not-registering-with-network-after-power-cycle-with-psm-active/21628)
**Author:** [@coryd](https://forums.digi.com/u/coryd)\ **Replies:** 2\ **Last updated:** [August 10, 2020, 12:53pm UTC](https://forums.digi.com/t/lte-m-nb-iot-not-registering-with-network-after-power-cycle-with-psm-active/21628 "2020-08-10T12:53:09Z")
I have PSM enabled on a LTE-M/NB-IoT device (XB3-C-A2-UT-001) on Verizon network. The PSM mode seems to work correctly, and will reconnect to the cellular network when there is network traffic. However, if the system exp… --- ## [XBXC3 update to 1140F / 11410 failing](https://forums.digi.com/t/xbxc3-update-to-1140f-11410-failing/21565)
**Author:** [@balloonz](https://forums.digi.com/u/balloonz)\ **Replies:** 8\ **Last updated:** [July 21, 2020, 12:17pm UTC](https://forums.digi.com/t/xbxc3-update-to-1140f-11410-failing/21565 "2020-07-21T12:17:24Z")
I have a cellular XBee (XBXC3 XBC LTE-M/NB-IoT Global) which I am trying to update to current firmware. When received, the device was on 1140B and I can update it to 1140C without issue. However, whenever I try to updat… --- ## [LTE-M and AT&T IoT Data Plan = no SMS Text ability](https://forums.digi.com/t/lte-m-and-at-t-iot-data-plan-no-sms-text-ability/20795)
**Author:** [@WesleyB](https://forums.digi.com/u/WesleyB)\ **Replies:** 6\ **Last updated:** [July 14, 2020, 9:02am UTC](https://forums.digi.com/t/lte-m-and-at-t-iot-data-plan-no-sms-text-ability/20795 "2020-07-14T09:02:53Z")
I purchased a DIGI LTE-M module and subscribed to a AT&T data plan. I can connect and get a reply from the echo server. I can not send SMS text messages. AT&T says their IoT data plan does not support SMS Text messages. … --- ## [XBee LTE-M Failing cell modem update](https://forums.digi.com/t/xbee-lte-m-failing-cell-modem-update/21380)
**Author:** [@ccoop\_tech](https://forums.digi.com/u/ccoop_tech)\ **Replies:** 2\ **Last updated:** [July 7, 2020, 1:28pm UTC](https://forums.digi.com/t/xbee-lte-m-failing-cell-modem-update/21380 "2020-07-07T13:28:38Z")
I’m updating the cellular modem firmware on my XBee LTE-M/NB-IoT device. It is failing at the end of the update (98% point) with: Error occured! \[Boot Failed\] Transferring cellular modem firmware…(retry #2)…(retry #3)… --- ## [XBee LTE-m having spotty connection to aws account](https://forums.digi.com/t/xbee-lte-m-having-spotty-connection-to-aws-account/21495)
**Author:** [@BayCompAssociates](https://forums.digi.com/u/BayCompAssociates)\ **Replies:** 3\ **Last updated:** [June 29, 2020, 9:58am UTC](https://forums.digi.com/t/xbee-lte-m-having-spotty-connection-to-aws-account/21495 "2020-06-29T09:58:54Z")
Hi there, we are using our XBEE devices in an IOT settings. Our micropython code seems to work perfectly fine as some times it connects to our aws account and sometimes it doesn’t. Does anyone have an explanation to th… --- ## [XBee3 LTE-M/NB-IoT - allocating more RAM](https://forums.digi.com/t/xbee3-lte-m-nb-iot-allocating-more-ram/21500)
**Author:** [@Larry\_Sellers](https://forums.digi.com/u/Larry_Sellers)\ **Replies:** 2\ **Last updated:** [June 25, 2020, 12:41pm UTC](https://forums.digi.com/t/xbee3-lte-m-nb-iot-allocating-more-ram/21500 "2020-06-25T12:41:17Z")
Was wondering if there was a way to allocate more of the system memory to the RAM used for uPy? I am running into an issue when trying to perform some self updates of the uPy code. I did make sure the device is removin… --- ## [Do Xbee3 LTE-M supports Indian frequency band ?](https://forums.digi.com/t/do-xbee3-lte-m-supports-indian-frequency-band/21346)
**Author:** [@rutvij.trivedi](https://forums.digi.com/u/rutvij.trivedi)\ **Replies:** 4\ **Last updated:** [May 8, 2020, 5:10pm UTC](https://forums.digi.com/t/do-xbee3-lte-m-supports-indian-frequency-band/21346 "2020-05-08T17:10:46Z")
Hi, I have purchased DIGI Xbee 3 module with below details, Details: LTE part number: SLEXP8021A Firmware version in Module - 1140b Hardware version-4b42 An antenna connected to “CELL” port Now when I am trying to … --- ## [Any one else having issues connecting to AWS from LTE-M/NB-IOT modem](https://forums.digi.com/t/any-one-else-having-issues-connecting-to-aws-from-lte-m-nb-iot-modem/21109)
**Author:** [@cdsteinf](https://forums.digi.com/u/cdsteinf)\ **Replies:** 4\ **Last updated:** [April 17, 2020, 9:06am UTC](https://forums.digi.com/t/any-one-else-having-issues-connecting-to-aws-from-lte-m-nb-iot-modem/21109 "2020-04-17T09:06:11Z")
I’m wondering if anyone is having similar issues as what I am having connecting to AWS. I’m following the micropython guide https://www.digi.com/resources/documentation/digidocs/PDFs/90002219.pdf I’m in the AWS IOT sec… --- ## [lte-m in germany](https://forums.digi.com/t/lte-m-in-germany/21125)
**Author:** [@hwilmers](https://forums.digi.com/u/hwilmers)\ **Replies:** 1\ **Last updated:** [February 18, 2020, 11:14am UTC](https://forums.digi.com/t/lte-m-in-germany/21125 "2020-02-18T11:14:23Z")
We are using Xbee3 LTE-M modules, and connect successfully using LTE-M in Norway. We use hologram SIM cards with worldwide roaming. However, the same module with the same setup does not work in Germany. Can anyone poi… --- ## [Xbee3 cellular LTE-M power usage in PSM](https://forums.digi.com/t/xbee3-cellular-lte-m-power-usage-in-psm/20239)
**Author:** [@jingle.yang](https://forums.digi.com/u/jingle.yang)\ **Replies:** 7\ **Last updated:** [January 30, 2020, 8:05am UTC](https://forums.digi.com/t/xbee3-cellular-lte-m-power-usage-in-psm/20239 "2020-01-30T08:05:05Z")
I measured the power usage of LTE-M module, it is drawing 5mA in PSM (power saving mode). Is there any way to reduce the power usage in PSM? The specification says it should draw 20 µA. Thanks and best regards, Jingle. … --- ## [XBee3 LTE-M/NB-IoT dropping connection](https://forums.digi.com/t/xbee3-lte-m-nb-iot-dropping-connection/20531)
**Author:** [@Larry\_Sellers](https://forums.digi.com/u/Larry_Sellers)\ **Replies:** 6\ **Last updated:** [August 14, 2019, 11:02am UTC](https://forums.digi.com/t/xbee3-lte-m-nb-iot-dropping-connection/20531 "2019-08-14T11:02:54Z")
Hello, I have been developing some prototypes with the XBee3 Cellular versions and keep having an issue. The devices stop sending data after about 10 to 12 hours or so. Sometimes a device will maintain connection for … --- ## [Is it possible for XBee3 Cellular IoT Modem to work as a separate interface?](https://forums.digi.com/t/is-it-possible-for-xbee3-cellular-iot-modem-to-work-as-a-separate-interface/20654)
**Author:** [@JinsungLee](https://forums.digi.com/u/JinsungLee)\ **Replies:** 1\ **Last updated:** [July 23, 2019, 12:33pm UTC](https://forums.digi.com/t/is-it-possible-for-xbee3-cellular-iot-modem-to-work-as-a-separate-interface/20654 "2019-07-23T12:33:39Z")
Hi everyone, I recently purchased “Digi XBee3 Cellular Smart Modem, LTE-M/NB-IoT, Development Kit, AT&T” and have been trying to get used to it. But, my primary goal is to use this kit for performing simple transmissio… --- ## [XBee3 LTE-M does not always transfer all data.](https://forums.digi.com/t/xbee3-lte-m-does-not-always-transfer-all-data/19810)
**Author:** [@cvanbrederode](https://forums.digi.com/u/cvanbrederode)\ **Replies:** 5\ **Last updated:** [July 17, 2019, 10:17am UTC](https://forums.digi.com/t/xbee3-lte-m-does-not-always-transfer-all-data/19810 "2019-07-17T10:17:49Z")
I have a XBee3 LTE-M module, mounted on a custom board that is communicating with a Cypress PSoC 5, running FreeRTOS 10.1 I’m trying to download a ~150 KB file (a firmware for OTA updates) using HTTP GET, and sometimes … --- ## [advice on PS design for XBEE3 CAT-M](https://forums.digi.com/t/advice-on-ps-design-for-xbee3-cat-m/20233)
**Author:** [@davidmundie](https://forums.digi.com/u/davidmundie)\ **Replies:** 0\ **Last updated:** [February 5, 2019, 12:40pm UTC](https://forums.digi.com/t/advice-on-ps-design-for-xbee3-cat-m/20233 "2019-02-05T12:40:51Z")
I am looking at the CAT-M module. In the past I have just shut down and powered down the cellular modem to save power but for CAT M the built in LTE PSM would be better I think. However that requires that the power sup… --- ## [Any preliminary information available for Digi XBee3™ Cellular LTE-M/NB-IoT 'Bluetooth Low Energy Ready' ?](https://forums.digi.com/t/any-preliminary-information-available-for-digi-xbee3-cellular-lte-m-nb-iot-bluetooth-low-energy-ready/20013)
**Author:** [@Jeff.Krueger](https://forums.digi.com/u/Jeff.Krueger)\ **Replies:** 3\ **Last updated:** [January 23, 2019, 1:10pm UTC](https://forums.digi.com/t/any-preliminary-information-available-for-digi-xbee3-cellular-lte-m-nb-iot-bluetooth-low-energy-ready/20013 "2019-01-23T13:10:39Z")
The Digi XBee3™ Cellular LTE-M/NB-IoT product summary web page indicates “Bluetooth Low Energy Ready”. What documentation is available for BLE portion of this module? If none, is there an estimated timeline for documenta… [Next page](https://forums.digi.com/tag/lte-m/3780.md?match_all_tags=true&page=1&tags%5B%5D=lte-m)