Specifications

AirPrime UMTS / LTE MC/SL-Series Extended AT Command Reference
126 Proprietary and Confidential 2130616
Command reference
Table 6-2: Memory management command details
Command Description
!NVDEF
Supporting chipsets:
• All
Reset non-volatile memory
Warning: This command erases all calibration data, customizations, etc. First use
!NVBACKUP to save these settings, and then, after using this command, use !NVRESTORE
(p.126) to restore the settings.
Note: Profiles (PDP contexts) are not restored using AT commands. The host application is
responsible for implementing this task.
Reset non-volatile memory to default values and then restore the modem’s FSN. All
calibration data, customizations, etc., are removed.
Note: This command may take 20–30 seconds to complete.
Usage:
• Execution: AT!NVDEF
Response:
!NVDEF: Wiping NV, restoring defaults for S1614350476E10F (FSN
shown is an example)
NV Items Defaulted: <defaulted>
OK
Purpose: Clear and reset NV items.
Parameters:
<defaulted> (Number of NV items defaulted)
• Valid range: 0–65535 (This number varies depending on firmware version.)
!NVRESTORE
Supporting chipsets:
• All
Restore backup data
Restore items to non-volatile memory that were backed up with the command
AT!NVBACKUP, and return the number of NV items restored.
Usage:
• Execution: AT!NVRESTORE=<category>
Response:
!NVRESTORE:
NV Items Restored: <restored>
OK
Purpose: Clear and reset NV items.
Parameters:
<category> (Item type to be restored)
• 0=Factory items (RF calibration data)
• 1=OEM items (Factory configuration, unless user has performed an
AT!NVBACKUP=1)
• 2=User items (Configuration as of most recent firmware download, including all user
customizations)
<restored> (Number of NV items restored)
• Valid range: 0–255