Error in Header

Hello people,

I need a support for uploading a software into wavecom supreme fasttrack 20.
When i send a file with by AT+WDWL command i receive “ERROR IN HEADER” for any file.

I tried hello_world.dwl etc.

What be happen?

Thank you

try using dwlwin

Your firmware version and Open AT application build version may be incompatible. Check modem firmware version by ATI3 and ensure that you are downloading the right hello_world.dwl file.

I solved my problem that is must be upgrade to R7.45 firmware and i used eclipse development tools from sierra site.

Thank you all ,