Unable to change +CSCS value

Asked Aug 08 '19 at 01:22

Active Aug 08 '19 at 11:49

Viewed 418 times

I am using a SIM800L module and I am trying to make it send an SMS. When I type the command AT+CSCS? it gives the output +CSCS="IRA". I want to change this to "GSM". When I try changing it using AT+CSCS = "GSM" and then try AT+CSCS? again, it gives +CSCS="IRA".

I have tried the command AT+CSCS = "GSM"

AT

AT+CSCS?

AT+CSCS = "GSM"

AT+CSCS

AT gives OK
AT+CSCS? gives "IRA"
AT+CSCS = "GSM" returns OK
AT+CSCS? returns IRA
For some reason, when I try to change +CSCS to "GSM" it doesn't work. I'm not sure why.

edited Aug 08 '19 at 11:49

asked Aug 08 '19 at 01:22

Aryan Mahesh

What does `AT+CSCS=?` report? – hlovdal Aug 08 '19 at 21:51
@hlovdal AT+CSCS=? gives +CSCS: ("IRA","GSM","UCS2","HEX","PCCP","PCDN","8859-1") – Aryan Mahesh Aug 09 '19 at 07:00
Does switching to any of the other character sets work? (Notice that after switching to UCS-2 you need to [https://stackoverflow.com/a/48349341/23118](switch back using a UCS-2 string)). – hlovdal Aug 11 '19 at 10:46
@hlovdal No. I am not able to write to the SIM – Aryan Mahesh Aug 12 '19 at 13:37

Unable to change +CSCS value

0 Answers0