CARRIER SPECIFIC NOTICE
MultiConnect
®
Cell MTC Cat M1 User Guide 17
AT+CEREG?
e. If signal and registration are present, issue the following command to establish data connection:
AT#SGACT=3,1
If signal and registration are not present, check antenna for proper connection and SIM for correct
orientation.
f. Issue following command to create FTP session:
AT#FTPOPEN="204.26.122.49","username","password",1,3
g. Have the host application issue the following command to download the firmwarecheck.csv file, read
its contents, and take actions based on those contents:
AT#FTPGET="firmwarecheck.csv
h. Have host system issue the following command to Telit ME910C1-NV to determine current firmware
file version and firmware build:
AT+GMR
AT#CFVR
i. If version/build indicated in responses are the same as indicated in firmwarecheck.csv: Go to Step
4.s.
j. If current firmware version is older than version indicated in firmwarecheck.csv: Continue to next
step.
k. Issue the following command to Telit ME910C1-NV to download the file indicated in the
firmwarecheck.csv file and wait for OK response (which indicates the file has been downloaded):
AT#FTPGETOTA="Name-Of-Firmware-File-Here.bin",0
l. After file is downloaded issue following command to Telit ME910C1-NV to close FTP session:
AT#FTPCLOSE
m. After closing FTP, issue following command to Telit ME910C1-NV to disconnect data session:
AT#SGACT=3,0
n. After closing data session, issue following command to Telit ME910C1-NV to apply downloaded file:
AT#OTAUP=0
o. Before continuing, wait for ME910C1-NV to reset a total of three times and/or wait a fixed period of
time to ensure module has enough time to apply downloaded firmware. The time needed varies
depending on the size of your firmware file.
p. Issue the following command to Telit ME910C1-NV to determine current firmware version.
AT+GMR
q. If version matches value indicated in firmwarecheck.csv: Go to Step 4.t.
If version does not match value indicated in firmwarecheck.csv issue, appropriate commands listed
earlier as needed in order to attempt to download and process the firmware file again.
r. Issue following command to Telit ME910C1-NV to close FTP session:
AT#FTPCLOSE
s. Issue following command to Telit ME910C1-NV to close data session:
AT#SGACT=3,0
t. End Process
Note:
Before deploying the device, thoroughly test your chosen FOTA implementation for functionality.
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