Quectel EC25 User Manual

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 66 / 231
Example
AT+CPIN?
+CPIN: READY
OK
AT+CPWD="SC","1234","4321" //Change (U)SIM card password to “4321”
OK
//Restart module or re-activate the SIM card
AT+CPIN? //Query PIN code is locked
+CPIN: SIM PIN
OK
AT+CPIN="4321" //PIN must be entered to define a new password “4321”
OK
+CPIN: READY
5.5. AT+CSIM Generic (U)SIM Access
The command allows a direct control of the (U)SIM that is installed in the currently selected card slot by a
distant application on the TE. The TE shall then keep the processing of (U)SIM information within the
frame specified by GSM/UMTS.
<newpwd> New password
AT+CSIM Generic (U)SIM Access
Test Command
AT+CSIM=?
Response
OK
Write Command
AT+CSIM=<length>,<command>
Response
+CSIM: <length>,<response>
OK
ERROR
If there is any error related to ME functionality:
+CME ERROR: <err>
Maximum Response Time
300ms
Reference

Quectel EC25 Specifications

General

Category	LTE Module
LTE TDD	B38/B40/B41
WCDMA	B1/B5/B8
GSM	850/900/1800/1900 MHz
Data rates	LTE Cat 4: 150 Mbps DL/50 Mbps UL
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature	-40°C to +85°C
Form Factor	LCC
Storage Temperature	-45°C to +90°C
SIM Interface	1.8V/3.0V
Antenna Interface	Main, Diversity, GNSS
LTE FDD	B1/B3/B5/B7/B8/B20
Interfaces	USB 2.0, UART, PCM, GPIO
Operating Voltage	3.3V - 4.3V
Protocols	TCP/IP, UDP, FTP, HTTP, HTTPS
Certifications	CE, FCC, PTCRB, GCF, RCM, IC