Appendix B: Command reference
98-140012-H
AT commands
153
ATCO response codes
The following response codes apply to the AT commands supported by SMS.
Code Text
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.
