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SIM900 AT Command Manual

SIM900_AT Command Manual_V1.03 72 12/24/2010

software when reading string lengths.

Reference

GSM 07.07 [13]

Note

3.2.28 AT+CPIN Enter PIN

AT+CPIN Enter PIN

Test Command

AT+CPIN=?

Response

TA returns an alphanumeric string indicating whether some password is

required or not.

+CPIN: <code>

Read Command

AT+CPIN?

Parameter

<code>

READY MT is not pending for any password

SIM PIN MT is waiting SIM PIN to be given

SIM PUK MT is waiting for SIM PUK to be given

PH_SIM PIN ME is waiting for phone to SIM card (antitheft)

PH_SIM PUK ME is waiting for SIM PUK (antitheft)

SIM PIN2 PIN2, e.g. for editing the FDN book possible

only if preceding Command was acknowledged

with +CME ERROR:17

SIM PUK2 possible only if preceding Command was

acknowledged with error +CME ERROR: 18.

Response

TA stores a password which is necessary before it can be operated (SIM

PIN, SIM PUK, PH-SIM PIN, etc.).

If the PIN required is SIM PUK or SIM PUK2, the second pin is required.

This second pin, <new pin>, is used to replace the old pin in the SIM.

If error is related to ME functionality:

+CME ERROR: <err>

Write Command

AT+CPIN=<pin>

[, <new pin>]

Parameters

<pin> string type; password

<new pin> string type; If the PIN required is SIM PUK or SIMPUK2:

new password

Reference Note

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