User Manual

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Appendix B: Command reference
98-148232-B AT commands 102
ATCO response codes
The following response codes apply to the AT commands supported by SMS.
Code Tex t Explanation
General codes
0 Complete Operation completed successfully
1 Unexpected software error Software error
2 Local file open error _IGETFILE: could not open local file after download
_ISENDFILE: could not open local file
_IUPDCFG: Loading configuration failed. Incompatible file
format.
3 Directory not found Could not find specified directory on local file system.
4 File not found Could not find specified file name on local file system.
5 Error renaming file Could not restore after failed upgrade.
Context Management codes
13 Context activation error Context activation failed. Could be problem with PS attach,
SIM subscription, APN, network or connectivity.
FTP Management codes
20 FTP hookup fail Connection to FTP server failed. Problem could be server
unreachable or specified IP address or server name invalid, or
connectivity failure.
21 FTP login fail FTP user name or password incorrect
23 FTP ‘cwd’ fail Could not change to working directory on FTP server.
24 FTP data connection fail Could not establish an FTP data connection with the server.
26 FTP xfer command fail Could not initiate data transfer on an established connection.
May be caused if filename not found.
29 FTP socket fail Error while reading or writing FTP data socket.
31 FTP xfer timed out FTP client timed out waiting for socket ready (read or write),
e.g. due to loss of connectivity during transfer.
_IGETFW command codes
40 File in use, cannot download The file to be downloaded is the same as the image currently
in use.
41 Starting immediate upgrade… Normal success. File downloaded successfully, now starting
immediate update.