Firmware 7.54.1.A1 Release Notes

Abbreviation/Acronym	Definitions
DCE	Data Circuit Equipment
DTE	Data Terminal Equipment
DTMF	Dual-tone multi-frequency signaling
DTR	Data Terminal Ready
GPIO	Global Purpose Input Output
IMEI	International Mobile Equipment Identity
MDN	Mobile Directory Number
ME	Mobile Equipment
MIN	Mobile Identification Number
MS	Mobile Station
NID	Network Identification
PDP	Packet Data Protocol
PLMN	Public Land Mobile Networks
PPP	Point-to-Point Protocol
SID	System Identification
SIM	Subscriber Information Module
STK	SIM Application Toolkit
TCP	Transmission Control Protocol
UART	Universal Asynchronous Receiver Transmitter
UDP	User Datagram Protocol
BOOT	Boot loader
AMSS	AMSS firmware
HYPER	Virtualization layer
OAT_NVP	Open-AT firmware NV parameters
OAT_FW	Open-AT firmware
AvMS	AirVantage Management Services FOTA
eUICC	embedded UICC
BIP	Bearer Independent Protocol

3. Related Documentation

Table 3. Related Documentation

Ref. #	Doc. #	Rev.	Document title
[R-1]	4111843	R17.00	AT Commands Interface Guide for Firmware 7.54.0.A1
[R-2]	4111844	R16.00	ADL User Guide for Open AT Application Framework OS 6.54.0.A1
[R-3]	4115145	R05.1	AirPrime - SL808xT,SL808xBT,SL808xBTA - Product Technical Specification & Customer Design Guidelines
[R-4]	2174049	R01.00	Audio feature Application Note
[R-5]	4119150	R01.00	Customer Release Notes – OS 6.54.1.A1

4. Compatibility

Table 4. Hardware Compatibility

AirPrime Compatibility List
AirPrime SL8080T/BT/BTA, SL8082T/BT/BTA, SL8084T/BT/BTA.

Table 5. Software Compatibility

Component	Version
Open AT OS	6.54.1.A1.201602291326
Location Library	1.4.8.201509231354
eCall inband Modem Library	1.3.4.201512300930
Security Library	2.2.3.201602080917
Internet Library	5.58.0.A1.201512161421
Extended AT Application	3.1.0.A1.201603041348

5. Software Release Description

5.1. Release Identification

Table 6. Open AT Firmware Release Information

	Modem (ATI8)	Services (ATI3)
Identification	"MODEM 3G+","Revision: C04.05.19.01.SL8RDAP R2734 CNSHZ-ED-XP0031 2016/03/04 21:27:51"	R7.54.1.A1.201604141352.sl808x
Date of generation	2016/03/04 21:27:51	2016/04/14 13:52
Binary Size		2005488 bytes
Checksum		0xf183049b
Boot loader X-modem	"DWL"," C04.05.19.01.SL8RDBT R2734 CNSHZ-ED-XP0031 2016/03/04 21:27:51","","Sierra Wireless",0,"","00000000","00000000"
IMEI SV	23
Flash/RAM type	NAND 128 MBytes / RAM 64 Mbytes

5.1. Software Tools Versions

Table 7. Software Tools Information

S/W Tools Name	Version	Resource file
Binary Update Tool	R11.2.1105.0	SIERRA_BOOT_C04.05.19.01.SL8RD.cwe SIERRA_OAT_FW_754_1_A1_6_FULL_sl808xA.cwe
Developer Studio	3.3
MuxConfTool	4.5.6.0

5.1. Released Files and Download Processes

Table 8. Released files for Firmware upgrade

Download Option	Files
Upgrade through Developer Studio	Open_AT_Application_Framework_v2-54-1-A1_SL808x_Full_Installer.exe

Upgrade through Binary Update Tool	Bootloader	SIERRA_BOOT_C04.05.19.01.SL8RD.cwe
Upgrade through Binary Update Tool	Firmware	SIERRA_OAT_FW_754_1_A1_6_FULL_sl808xA.cwe
Upgrade through X-modem	Bootloader	SIERRA_BOOT_C04.05.19.01.SL8RD.dwl
Upgrade through X-modem	Firmware	SIERRA_OAT_FW_754_1_A1_6_FULL_sl808xA.dwl

Note: R7.54.1.A1.201604141352.exe can be used to recover “AirPrime SL808xT/BT/BTA” in bad state.

The Firmware .cwe and .dwl contain the operators name latest TS.25 list (formerly, SE.13) dated April 4, 2016

For the upgrade procedure, you can refer to:

In-line help for upgrade procedure through Developer Studio
The upgrade procedure through X-modem

Warning: Firmware upgrade from 7.50, 7.52 is not supported

6. Software Changes Description

6.1. Corrections/Improvements

Table 8. Corrections/Improvements

ID	Description	Impacted Domain	Impacted Sub-Domain	Fixed in
88683	When a voice call is released by the network, the following call returns the error code +CEER 16 even if it's disconnected for no signal.	AT	CALL	7.54.1.A1
90666	AirPrime performs silent retries of eCall indefinitely in case there is no response from the network (eg- very poor signal strength) for an eCall. Until the eCall succeeds, ATH will not be functional.	AT	CALL	7.54.1.A1
87979	Response for AT+CIND? Command is not received if it is issued after AT+CFUN=4.	AT	OTHER	7.54.1.A1
86849	The firmware default format of +COPS command is changed from numeric to long alphanumeric.	AT	OTHER	7.54.1.A1
86480	In case of AT+CFUN=1, Time was reinitialized in AMSS by OAT FW. So before Time is retrieved from Network it is not exact, like for a cold start.	AT	OTHER	7.54.1.A1
86406	Sometimes closing port can lead to module reset when there are pending responses to be sent over that port.	AT	OTHER	7.54.1.A1
85210	<SignalLevel> reported by +WPOW deviates from actual signal level due to incorrect calculation in the firmware.	AT	OTHER	7.54.1.A1
90119	AT+CFBACKUP command fails if there is a residual error file (remains of corrupted NV files) and reports error 684	AT	OTHER	7.54.1.A1
87498	Supplementary service commands stop working if six or more than six unsolicited +CUSD: 0,xxx indications are received from AMSS.	AT	SS	7.54.1.A1
87220	RX is mute when the DTMF is on.	AUDIO	DTMF	7.54.1.A1
86243	Module cannot detect SIM card if it is PH-NET PIN enabled.			7.54.1.A1
87425	Facility lock status cannot be queried till the facility lock password is provided using AT+CPIN	SIM		7.54.1.A1
86061	Action Command at+wsimpfset returns +CME ERROR: 740 (Impacted SIM card manufacturers are: Oberthur + Morpho) -> SIM switch profile may be indicated as failed.	SIM		7.54.1.A1
86601	Incorrect of IMEISV length defined by Qualcomm in QSC6270 PL4.5. Fix the incorrect IMEISV in Provide Local information of STK proactive command on SL808X module.	SIM		7.54.1.A1
86605	AT+CNUM return ERROR after OTA SIM Provisioning.	SIM	STK	7.54.1.A1
85397	When memory in SIM/USIM is full and ME memory is not full, MS is no more able to receive MTSMS class 2 as no more free memory to store it. MS is supposed to send appropriate ERROR code to the network to allow it to suspend next MTSMS class 2 deliveries. But error code sent by MS is wrong in such a use case	SMS	MT SMS	7.54.1.A1
87093	Class 2 SMS received before +WIND: 16 does not send any +CMTI indication but are silently stored in SIM card.	SMS	MT SMS	7.54.1.A1
87095	Open AT application cannot read SMS even if +CMTI indication is sent, if it is received after SMSPP service has been loaded but before SMSCB service is loaded.	SMS	MT SMS	7.54.1.A1
85792	When performing ATD#xxxx, the module rejects the mobile originating call, when it should treats it.	AT	CALL	7.54.0.A1
78321	AT+CHLD=1x result in all calls drop if "x" is not a valid call	AT	CALL	7.54.0.A1
86166	If EF-OPL entry matching with current LAC and operator points to record 0 in EF-PNN, then PLMN name from NITZ is not displayed as a response to AT+COPS? command	AT	OTHER	7.54.0.A1
85916	AT+CLCK="PN" can cause side effect, and bad PLMN lock	AT	OTHER	7.54.0.A1
82956	AT+WUBS? Read command may return incorrect value if the AirPrime is not able to latch to the band selected by AT+WUBS action command.	AT	OTHER	7.54.0.A1
83436	At times, response for AT+CREG? Command is +CREG: 1 even after removing SIM card.	AT	OTHER	7.54.0.A1
82609	+CGREG status shown by AT command is not in line with actual GPRS registration status of the module.	AT	OTHER	7.54.0.A1
83529	Response of AT+CIEV for receives signal quality is not in line with response received for AT+CSQ	AT	OTHER	7.54.0.A1
83595	Unsolicited +CIEV indication is not received when signal strength changes and +CIEV codes are enabled using AT+CMER command.	AT	OTHER	7.54.0.A1
76220	Even if main cell information are available, +CME ERROR 30 is sometimes returned when AT+CCED=0,35 is issued	AT	OTHER	7.54.0.A1
77943	The maximum supported value for ADC Vbatt with AT+WDIAG is 4.3V instead of 4.2V	AT	OTHER	7.54.0.A1
78689	+WIOM AT command usage may lead to a module reset if numerously sent ( more than 30000 times)	AT	GPIO	7.54.0.A1
78753	No +CGREG indication is sent after GPRS service recovery.	AT	OTHER	7.54.0.A1
79247	Wrong Error code is obtained for +CEER when the GPRS attach request is rejected for the cause "GPRS not allowed"	AT	OTHER	7.54.0.A1
81072	When Flash objects storage is intensively used (for example for Phonebook), Open-AT application may be frozen during few seconds after switching radio on with AT+CFUN=1,0.	AT	OTHER	7.54.0.A1
81585	Module might reset or not respond (occurrence < 10%) when sending AT+CCED	AT	OTHER	7.54.0.A1
82089	If some badly formed AT commands are sent by application, it could end with a heap memory corruption	AT	OTHER	7.54.0.A1
84000	Incorrect error code reported by AT+CEER when network rejects PDP context activation request	AT	OTHER	7.54.0.A1
81510	Very low CPU available during a few seconds after AT+CFUN=0	AT	OTHER	7.54.0.A1
79504	When 8 wires UART is configured with WHCNF and AT+W32K=1 commands. Module can’t go into sleep mode due to bad DTR signal.	AT	Sleep Mode	7.54.0.A1
84383	The module can't enter into sleep mode after hang up a call	AT	Sleep Mode	7.54.0.A1
78758	When a SMS sending is requested by using AT+CMGS, the AT parser is blocked waiting for the OK response. In case of huge load in the system (other treatment in progress etc ...), the AT+CMGS treatment may take a long time.	AT	SMS	7.54.0.A1
82871	Multiple instances of AT command timeouts seen usually when there is an MT SMS at the same time	AT	SMS	7.54.0.A1
75906	MS is unable to display the information by AT command for Open Channel as channel identifier is not reported on the AT interface. (BIP feature)	AT	STK	7.54.0.A1
69663	The audio PCM playback stop may lead to a module reset.	AUDIO		7.54.0.A1
74714	Hardware PCM interface is not functional (with restrictions AGC, and AVC should be cut)	AUDIO		7.54.0.A1
77114	Rx / Tx AGC are active as default settings	AUDIO		7.54.0.A1
78892	When a second MO call is done after releasing a first call with ATH, the echo canceller doesn't work, unless voice prompt without audio processing is used during call establishment and RxAGC is activated. Sending "AT+ECHO=1,1" prior to each call works around this issue.	AUDIO		7.54.0.A1
84911	Any use of audio in OAT stops SL8 sleep mode activation.	AUDIO		7.54.0.A1
78408/77784	After an OTA firmware update, the module may be not able to reconnect to automatically the AirVantage server, due to an HTTP error received (<7%). After a module reset, connection is successful.	AvMS		7.54.0.A1
79018	AirPrime module does connect to the AvMS server after AT+WDSS=1,1 command is issued in case of an AvMS package is present in flash and end user has not yet accepted the installation of the package (User agreement enable).	AvMS		7.54.0.A1
76792	ICCID Monitoring not supported with AvMS portal	AvMS	Monitoring	7.54.0.A1
77858	GPIO state is not stable when the module is set in Low Power Mode.	DEVICE	GPIO	7.54.0.A1
82224	USB CDC EEM link cannot receive data after restart of bearer from sleep mode.	DEVICE	USB	7.54.0.A1
77689	SPI read starts failing continuously after stress testing this interface for 2 days at low speed.	DEVICE	SPI	7.54.0.A1
79264	An SPI transaction may fail under SPI stress test	DEVICE	SPI	7.54.0.A1
79582	Sometimes, the module resets with watchdog after subscribing and then reading/writing to the SPI bus.	DEVICE	SPI	7.54.0.A1
79689	SPI transaction may be sometimes incomplete.	DEVICE	SPI	7.54.0.A1
83369	Reset of SL8 in some particular cases of UART_SPI usage (heavy traffic and IOCTL for example)	DEVICE	UART SPI	7.54.0.A1
82057	Reset seen sometimes during boot up when traces are being collected using UART over SPI port.	DEVICE	UART SPI	7.54.0.A1
82858	UART over SPI does not work and data transfer is not possible, because of Bad Chip Select management	DEVICE	UART SPI	7.54.0.A1
84407	stops sending data sent using adl_fcmSendData () from embedded application to the external application using UART over SPI when HAPC mode is enabled and data is sent at a very high rate, along with unsolicited AT responses	DEVICE	UART SPI	7.54.0.A1
79655	According to internal conditions (not easy to get), data received on UART are no more managed, so the AT interface seems frozen or AT answers are delayed. It happens especially in case or Break or Overrun.	DEVICE	UART	7.54.0.A1
79656	The UART is blocked if there is a FIFO overrun	DEVICE	UART	7.54.0.A1
78940	[eUICC] Local ERA-GLONASS subscription swap procedure fails with a specific Oberthur eUICC card.	SIM	eUICC	7.54.0.A1
82028	Stack Corruption occurs on receiving sim toolkit refresh indication. It leads to a reset.	SIM	STK	7.54.0.A1
86104	Memory leak occurs if STLK autoresponse is enabled and silentmode is disabled. After too many leaks, it leads to a reset.	SIM	STK	7.54.0.A1
83866	software watchdog Reset are got after SIM phonebook activity	SIM	PHBK	7.54.0.A1
83741	Value of RP Cause in CP_DATA [RP_ERROR] is wrong when a MT SMS to be stored in SIM is received. That means network receives a wrong indication from the MS when the SIM memory is full. Depending on the way the network uses this information, it could lead the network to take wrong decision about potential SMS retransmission (trying to resend by changing class for example etc ...).	SMS		7.54.0.A1
86284	SMS Sent by AirPrime using STK SEND SMS command has invalid SMSC	SMS		7.54.0.A1
85469	When "out of envelops" exception happens, a double fault can also happen, so analysis will be very difficult	SYS		7.54.0.A1
81761	Users cannot download DEE, after sending username and password with AT+WPPP and activating the PDP context.	TELECOM	DATA	7.54.0.A1
81225	Connected data connection is not disconnected even GSM stack has already been shut down due to overheat.	TELECOM	DATA	7.54.0.A1
84970	DNS parameters in Activate PDP Context Request is not correct of SL8 and cause the DNS not returned by network.	TELECOM	DATA	7.54.0.A1
75988	Cannot establish multiple PDP connections with the same APN.	TELECOM	SESSION MGT	7.54.0.A1
82509	Cannot establish multiple PDP connections if PDP context type are different (IP and PPP)	TELECOM	SESSION MGT	7.54.0.A1
85099	APN used for CGDCONT always truncated to 25 characters	TELECOM	SESSION MGT	7.54.0.A1
85987	If a SIM REFRESH is initiated by SIM card during a PDP context establishment (AT+CGACT=1,x), final answer (OK) may be not displayed on AT terminal. No way no treat other AT commands.	TELECOM	SESSION MGT	7.54.0.A1
79273	Modem resets when roaming between AT&T and Canadian networks along the border using the Jasper SIM	TELECOM		7.54.0.A1
86010	3G band selection with at+wubs command is not taken into effect sometimes.	TELECOM		7.54.0.A1
81498	Very low CPU available for Application in case of disconnection of USB when used in debug (connected to Dev Studio)	TRC	HAPC	7.54.0.A1

6.2. Interface Changes

This section presents the interfaces that have been modified since Firmware 7.54.0.A1.

Table 9. Interface Changes

Command	Comment
+COPS	Default value for <format> has been changed from 2 (numeric <oper>) to 0 (long alphanumeric format <oper>)

7. Troubleshooting

For Open AT Developers, please refer to the Troubleshooting Guide available in source website before contacting customer support.

For AT developers, please contact customer service for support and debugging information.

8. Certification Description

Product	GCF-CC	NAPRD.03
AirPrime SL8080T/BT/BTA - Sierra Wireless	N/A	7.54.1.A1 release Modem: C04.05.19.01 NAPRD.03 v5.27 Date of Certification: 2106-06-01
AirPrime SL8082T/BT/BTA - Sierra Wireless	7.54.1.A1 release Modem: C04.05.19.01 GCF-CC v3.61.1 Date of Certification: 2106-06-01	N/A
AirPrime SL8084T/BT/BTA - Sierra Wireless	N/A	N/A

9. Restrictions and Additional Information

This section presents additional information or restrictions that must be taken into account regarding Firmware 7.54.1.A1. Issues are sorted by alphabetical order of Impacted Domain

Table 10. Restrictions and Additional Information

Issue ID	Description (What/When)	Impacted Domain	Impacted Sub-Domain
72948	Incorrect terminal response is sent to the SIM after a proactive Send USSD command is requested.	AT	STK
72961	Incorrect terminal response is sent to the SIM after a proactive Send SS command is requested.	AT	STK
84529	With AT+CGLA, APDU command longer than 235 bytes are not supported (+CME ERROR occurs) and APDU response longer than 243 bytes are not supported too.	AT	eUICC
78754	Memory leak occurs when AT+WIOM?, AT+WIOM=2 and AT+WIOM=3 commands are issued	AT	GPIO
65589	SIM initialization time can be very long and may vary from one SIM to other.	AT	SIM
77173	Call Forwarding command is not correctly managed for Data services (CSD).	AT	SS
78145	+CHLD=2 handling occasionally returns +CME ERROR 30	AT	SS
79006	CHLD Making a 5-party conference call, ATD variants return NO CARRIER	AT	SS
79035	AT+CHLD=1 may lead to no response after answering a incoming call and doing an outgoing call That means releasing all active calls (if any exist) and accepts the other (held or waiting) call during a multiparty call session may not work	AT	SS
78135	SL8 returns +CME ERROR 30 for +CHLD=2X. That means: placing all active calls on hold except call X during a multiparty call session does not work. SL8 returns +CME ERROR 30 for +CHLD=3. That means: adding a held call to conversation during a multiparty call session does not work.	AT	SS
64017	AT+WLCK doesn’t work for PS, PP and PC facilities.	AT
74467 89461	When Spy Mode is activated, sometimes the +CREG notification is not sent upon network registration state change.	AT	SPY_MODE
88896	Can't write name of more than 16 characters in "ON" phonebook using UCS2 characters	AT	Phonebook
89552	+CNUM could return +CME ERROR: 3 with very rare SIM/USIM card. In this case AT+CPBS=”ON” does not either work	AT	Phonebook
66591	AT+WSVN does not change the IMEI SVN sent to the network.	AT	OTHER
88790	During active voice call, if +VTS command is issued while AT+CMGD=0,4 is in progress, then result of +VTS command is not received.	AT	OTHER
91263	If AT+WREGC=1 or AT+WREGC=0 command is issued after AT+CFUN=4 then port is blocked and no command can be issued further.	AT	OTHER
81024	AT+CBST=7,0,3 returns OK instead of returning ERROR as <ce>=3 is not supported.	AT	CSD
81115	+DS, +DR ERROR is not returned in executing commands regarding Data compression	AT	CSD
85023	GSM CSD auto answer setting using ATS0 does not work when AT+CGAUTO is set to 0	AT	CSD
73468	+GPSEVERROR: -23,4 appears after AT+GPSSTART	AT	GPS
78085	Audio prompt glitch during hand overs	AUDIO
78087	Audio prompt glitch during call alerting time	AUDIO
83747	Little glitch at the end of DTMF playback	AUDIO	DTMF
87220	RX is mute when the DTMF is on.	AUDIO	DTMF
79618	Phone Call with AT+SPEAKER=9 will cause the module to reset, and AGC/AVC enabled will make noise.	AUDIO
78835	A short interruption during local PCM playback is heard when answering incoming call (ATA) or when releasing a call (NO CARRIER or ATH).	AUDIO
85765	Audio remains muted if ecall is cancelled immediately using AT+ERAGCALLCANCEL from IVS.	AUDIO
88420	If a voice call is in progress and another incoming call is disconnected by the peer without having been accepted, then first call audio gets muted.	AUDIO
78228	Cell Id reported to AvMS server may be wrong when AirPrime module is registered to a 2G network and a new cell has just been selected.	AvMS
77968	The terminating flag (0xF9) is not received for CMUX DISC command when UART baud rate is configured to 9600bps or 19200bps.	DEVICE	CMUX
78112	Aux ADC1 value returned by AT+ADC for numeric mode is wrong. The analog mode is working.	DEVICE	ADC
91810	AirPrime may sometimes reset when UART is opened & closed repeatedly using Open UART APIs.	DEVICE	UART
79701	UART over SPI: missing characters in transmission and reception during throughput tests.	DEVICE	UART over SPI
89488	Module resets when UART over SPI port is closed using AT+WMFM command when HAPC mode is enabled on it	DEVICE	UART over SPI
89464	Module may reset when opening/closing USB port in loop, using +WMFM command	DEVICE	USB
73909	"." and ".." folders are not shown while listing the contents of a File System.	File system
90916	On rare occasions, GPIO initialization in the firmware may be unsuccessful and can lead to GPIO subscription failure.	GPIO	Service Pin
85106	OAT UICC test case: Command processing, warning and error status bytes failed. When a SIM card answer by using specific procedure, SIM card may be declared as absent for user.	SIM	T=0/T=1
66340	SIM Initialization time on SL808xT AirPrime module is longer (WIND4: 43 sec) than on Open-AT 2G products.	SIM
82466	AT+CPIN? Always returns +CME ERROR: 10 for SIMs which take more than 3 minutes to initialize.	SIM
83292	If a SIM card has conflicting SIM PIN settings – PIN verification is enable but usage qualifier is set to 0 (“don't use the verification requirement for verification”), AT+CPIN? shows +CPIN: READY and skips SIM PIN verification. Please refer to ETSI TS 102 222 for information on usage qualifier.	SIM
72684	STK proactive command "Language notification" is not supported.	SIM	STK
77656	AirPrime module fails to perform STK "set up call" command.	SIM	STK
79377	No terminal response is sent to the SIM for GET INKEY, backward move.	SIM	STK
63843	When a STK SEND SS is requested, the action is correctly done, but the Terminal response sent back to the SIM doesn't contain additional information (Operation Code and SS Parameters).	SIM	STK
69490	Incorrect TERMINAL RESPONSE is received if call attempt resulting from a proactive command fails.	SIM	STK
76414	[eUICC] Local ERA-GLONASS subscription swap procedure may be long (5 seconds) with Gemalto eUICC..	SIM	eUICC
12708	Switching to GLONASS Profile is not successful with some UICC operators when voice or packet session is in progress.	SIM
89660	MO SMS Sending could fail when a PDP context is activated, and AT+CGSMS=3 is configured	SMS	MO SMS
87338	SMS indication for class 2 may be lost if module is reset before +WIND: 16 indication	SMS	MT SMS
85396	When ME and SM memory are full regarding to SMS storage and a SMS is deleted by user in ME memory, the "memory available procedure" is not performed. Depending on the network strategy, MTSMS may be blocked in network up to SMS SM deletion.	SMS	MT SMS
76293	Empty SMS in text and PDU mode can’t be sent (+CMS ERROR: 513)	SMS
75319	Incoming SMS may be never received in case of AirPrime module is in OFF mode state when SMS is sent.	SMS
72444	When sending SMS (PDU mode) continuously without any delay, SMS delivery reports are not noticed through +CDS.	SMS

Related items

Firmware package 7.54.0.A1 for SL808xT/BT

Open AT Application Framework 2.54.0.A1 Full Installer for SL808xT/BT

Full installer for Open AT Application Framework 2.54.0.A1 for AirPrime SL808xT/BT

AT Commands Interface Guide for Firmware 7.54.0.A1

This document provides full description of AT commands supported by AirPrime wireless modules and AirLink Programmable Gateways.

Extended AT Commands Manual

This document provides full description of AT commands supported by AirPrime wireless modules and AirLink Programmable Gateways through Extended AT Application.