Testing Issue with RC7620 on MangOH evaluation board

Hello, This is Souvik. We were testing the RC7620 module using mangOH red evaluation board. We were successful in testing for call functionality using AT commands but while testing for SMS and HTTP, we were encountering a certain error with error code as +CMS ERROR: 305 while passing the commands

at+cmgf=1

OK

at+cmgf?

+CMGF: 1

OK

at+cmgs=“8178743739”

test

+CMS ERROR: 305

We have tried several iterations of the same even by changing the syntax of at+cmgs=“8178743739” to at+cmgs="+918178743739", yet the result was an error as mentioned above.
Any help regarding the same is greatly appreciated. Thank you.

I don’t see problem to send SMS:

at+cmgs=“1234567”

asdfasdf

+CMGS: 12

OK
ati3
Manufacturer: Sierra Wireless, Incorporated
Model: RC7620
Revision: SWI9X07H_00.03.03.00 2bb7a4 jenkins 2020/04/15 07:57:29
IMEI: 353634110000980
IMEI SV: 14
FSN: 7Q9472000710AA
+GCAP: +CGSM,+DS,+ES

OK
at+cmgf?
+CMGF: 1

OK
at+csca?
+CSCA: “+85290288000”,145

OK

But we have tried the possible formats as per the AT command reference guide but we keep on getting the same error code. Sending you some information which might be relevant regarding the board.

ati9
Manufacturer: Sierra Wireless, Incorporated
Model: RC7620
QTI baseline: MPSS.JO.2.0.2.c1.1-00043-9607_GENNS_PACK-1.275918.1
Revision: SWI9X07H_00.03.03.00 2bb7a4 jenkins 2020/04/15 07:57:29
IMEI: 353634110101218
IMEI SV: 14
FSN: 7Q0232000203A0
+GCAP: +CGSM

OK
ati8
Legato Ver: 20.03.0.m4.ThreadX.rc2
Modem Ver: SWI9X07H_00.03.03.00 2bb7a4 jenkins 2020/04/15 07:57:29
MCU Ver: unknown
TAOP Ver: TZ.BF.4.0.C6-00117

OK

does this SIM OK to send SMS?
Have you tried other module like WP76?

Yes, the SIM has been tested for sending SMS on mobile. We were previously testing WP7702 module. Since we intended to use the UART interface, we shifted to RC7620 but we observed this error while testing.

What is return of at!gstatus?

You can try more sim card from other operator and see if this is only happening to this sim card only

at!gstatus?
!GSTATUS:
Current Time: 4248 Temperature: 34
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
IMS reg state: REGISTERED IMS mode: Normal
IMS Srv State: FULL SMS,FULL VoIP
LTE band: B1 LTE bw: 10 MHz
LTE Rx chan: 240 LTE Tx chan: 18240
LTE CA state: INACTIVE
EMM state: Registered Normal Service
RRC state: RRC Idle

PCC RxM RSSI: -77 RSRP (dBm): -109
PCC RxD RSSI: -98 RSRP (dBm): -137
Tx Power: – TAC: 0889 (2185)
RSRQ (dB): -15 Cell ID: 09376433 (154625075)
SINR (dB): -5.2

OK

We had already tested with a different SIM card. Could you tell more regarding the error code +CMS ERROR: 305 that keeps coming. Thank you

Error 305 means" Invalid text mode parameter"

Do you find problem on using pdu mode

Hello,

Could you please elaborate on the said PDU mode.

you set AT+CMGF=1, and then you can use below link to convert text message to pdu format.

http://rednaxela.net/pdu.php

Okay thanks. Will do this and let you know