Nordic nRF91 series

AT command guide for: Nordic Semiconductor nRF91 series incl. nRF9160

Please be aware that we cannot guarantee for the completeness and accuracy of this page. For detailed information and latest versions of the AT command guides, please always refer to the supplier's specifications and manuals.
You can contact us at 📧 docwriters (at) iotcreators (dot) com in case this collection doesn't work for you!

Vendor's AT commands manual

nRF91 AT Commands
https://infocenter.nordicsemi.com/topic/ref_at_commands/REF/at_commands/intro.html

Specific AT commands for Serial LTE Modem (SLM)
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/AT_commands_intro.html

General AT Commands

PurposeCommand String
Configure/start a manual network selectionAT+COPS=[,[,[,]]]

For example: AT+COPS=1,2,"26201"
Check the received signal qualityAT%XMONITOR

%XMONITOR: <reg_status>,[<full_name>,<short_name>,,,,,<cell_id>,<phys_cell_id>,,,,<NW-provided_eDRX_value>,,]
Check the supported/configured bands of the UEAT%XCBAND
Check the network registration statusAT+CEREG?
Configure the APN for IP-based connectionAT+CGDCONT=0,"IP",""
Configure/activate the PSM modeAT+CPSMS=[[,<Requested_Periodic-RAU>[,<Requested_GPRS-READYtimer>[,<Requested_Periodic-TAU>[,<Requested_Active-Time>]]]]]
Initialization and resuming of firmware over the air (FOTA) updatesAT+UCOAPFWT=0

Note: This AT command is used to resume FOTA transfer after interruption:
AT+UCOAPFWT=<remaining_blocks>
Check the firmware versionAT+CGMR
Check the hardware versionAT%HWVERSION
Modify the supported bands of the UEAT%XBANDLOCK=[,<band_mask>]


0 – Remove band locks
1 – Set permanent band mask
2 – Set runtime band mask

<band_mask><permanent_lock><run-time_lock>

String. Bit string, LSB is band 1. Leading zeroes can be omitted. Maximum length 88 characters.

The following command example sets runtime band 4 and 13 lock:
AT%XBANDLOCK=2,"1000000001000"

OK
Switch ON / OFF the transceiverAT+CFUN=0 / AT+CFUN=1; AT+CGATT=1

AT Commands for Communication Protocols

PurposeCommand String
Configure/activate Rel. 13 Early Release Assistance IndicatorAT%XRAI[=]


Release assistance information sent to the network.

0 – Undefined, default
3 – Control plane one response. For more information, see 3GPP TS 24.301, subclause 9.9.4.25 Release assistance indication.
4 – Control plane no response. For more information, see 3GPP TS 24.301, subclause 9.9.4.25 Release assistance indication.
Configure/activate the eDRX modeAT+CEDRXS=[,[,[,<Requested_eDRX_value>]]]
Modify eDRX parameters
Create a TCP/UDP socket and send data to remote via socket
Send data to remote via socket