Siemens AC75 - Manual (Page 534)

AC75 AT Command Set
22.5 AT^SFDL
s
AC75_ATC_V01.002 Page 534 of 569 10/30/06
Confidential / Released
Parameter Description
1 OTA (Firmware update Over-The-Air).
Sets SPI mode to replace the module's existing firmware with a new firmware
from a dedicated SPI flash memory. The new firmware is initially written to the
SPI flash via GSM/GPRS, i.e., over-the-air. See
AT^SSPI
for further detail on
the SPI mode. More information on over-the-air firmware update can be found
in [11] .
Before launching an over-the-air firmware update, take care that the USB cable
is unplugged. This is necessary because both interfaces, SPI and USB, cannot
be used at the same time. See also
AT^SSPI
.
(num)