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Chapter 3 – Supported GSM/WCDMA AT Commands
&F Restore Factory Settings
Description:
Syntax:
This command is used to restore the factory settings from EEPROM.
Command
Responses
OK
Action Command:
AT&F<n>
No Read and Test Commands
Values:
<n>
Setting Restore Parameter
If <n> is not omitted and with a value different from 0, the response is OK
without any treatment.
0
Restore factory settings
Examples:
Command
AT&F
Note: Ask for restoring the factory settings
AT&F0
Note: Ask for restoring the factory settings
Responses
OK
Note: Done
OK
Note: Done
Notes:
• For each parameter, the section "Parameter Storage" specifies which default values can
be restored using AT&F. The parameters are restored in RAM and in E2P, overwriting the
profile set with AT&W.
• This command does not update the +IPR command.
&S Set DSR Signal
Description:
Syntax:
This command controls the Data Set Ready (DSR) signal.
Command
Action Command:
AT&S[<n>]
Responses
OK
No Read and Test Commands
Values:
<n>
Parameter Storage:
DSR Signal Control Parameter
0 DSR always ON
1 DSR OFF in command mode. DSR ON in data mode. Default.
The <n> parameter is stored in EEPROM using AT&W. The default value can be
restored using AT&F.
Examples:
Command
AT&S0
Note: DSR always on
AT&S1
Note: DSR off in command
mode. DSR on in data mode
Responses
OK
OK
High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A)
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