User guide

Developers guidelines | AT commands
147 June 2010
AT+CMAR Master reset
“roam” Roaming indicator (0–1) – Home net status, 0 =
Home Net
“callsetup” Bluetooth proprietary call set up status indicator.
Possible values are as follows (range is 0–3):
0: Not currently in call set up
1: Incoming call process ongoing
2: Outgoing call set up is ongoing
3: Remote party being alerted in an outgoing call
“callheld” Indicates the status of any held calls on the AG:
0 = No held calls.
1 = Call is placed on hold or active/held calls
swapped
2 = Call on hold
Supported if phone uses Bluetooth handsfree
profile 1.5
Description: Requests the phone to reset user data (factory reset). The user data in the
phone will be reset to default values.
If the phone is locked and this command is used, then the phone is
unlocked after the master reset.
The parameter <option> is not in the 3GPP standard. This is an extension
of the command for Sony Ericsson.
Execution
command: AT+CMAR=<phone_lock_code>[,<option>]
Test command: AT+CMAR=? Shows if the command is supported.
Parameter:
<phone_lock_code>:
<phone_lock_code> Description
String Security code (Phone Lock code) must be verified
before performing the master reset, see also
AT+CLCK
<option>:
<option> Description
0 Initiates a “Master Reset”. All settings in the phone
are restored to the factory settings. All user data
such as contacts in phonebook, downloaded files,
WAP settings, and so on, are also erased
1 Initiates a “Reset Settings”. Settings in the phone
will be restored to the factory settings. User data
such as contacts in phonebook, downloaded files,
WAP settings, and so on, are kept
<descr> Description