Help needed!

I'm trying to set a friends pro 1.1 EX up with the WiFi module but I can't update the firmware.

It connects fine if I don't put it in safe mode and I can edit all the usual settings (ABS etc...). But in normal mode (not safe mode) the update firmware option doesn't shop any firmware available.

If I run it in safe mode it says it's connected but the red blobs at the bottom of the screen don't turn green. When I chose the firmware I want (Stock1) it goes to the update screen but then immediately fails. I get the message "Download failed, please reset the ESC". From this point on I can't do anything but reset the app.

I've tried everything and am all out of ideas.