Technical information

Remote Firmware Update
2-72 AT+i Commands Reference Manual May 31, 2008
5. W24 replaces the old image with the new image.
6. If the replacement process fails, for example due to power failure, W24 re-boots from boot
loader in the flash memory and re-tries the replacement process until successful.
7. If the replacement process is successful, W24 re-boots and executes the new firmware.
+iRFU - Remote Firmware Update
Syntax: AT+iRFU
Downloads and updates W24 firmware from a remote HTTP or
FTP server. The value of the USRV parameter is used to
determine the remote server from which to download the
firmware. The value of the UEN flag is used to determine
whether to update any firmware version or only a version that is
newer than the one already installed. In addition, if an FTP server
is specified for download, the UUSR and UPWD parameter
values are used to determine FTP user name and password.
Result Code:
I/OK To acknowledge successful receipt of the command.
I/ERROR Otherwise.
Followed by:
I/UPDATE If a qualifying firmware update .imz file is found.
I/ERROR Otherwise.
Followed by:
I/DONE After successfully updating new firmware in dialup mode.
I/ONLINE After successfully updating new firmware in WLAN mode.
I/ERROR Otherwise.