Firmware update over the air using AT commands

[kalpesh]

Hi,
I want to implement Firmware update over the air using AT commands.
The command AT+KFTPCFG helps to establish the connection between FTP server, where the file is stored and the modem.
The data present in file (FTP server) can be downloaded to controller using AT+KFTPRCV command with the required offset.
But when I use the AT+KFTPRCV command, some data bytes are getting lost.
Any idea how to solve the issue.

Thanks
Kalpesh

[Giovanni]

Hi,

Try reducing speed, are you getting communication error events?

Giovanni

[kalpesh]

Hi,
When I download the data from the file and print it on the serial terminal, I am getting the complete data.

But when I write the data into flash- SSt25VF016B (after downloading it) , and try to read the data from flash it gives garbage value.

I also tried to change the baud rate , but no luck.

Thanks