What's your issue? You need to be detailed on the issue you encountered during the upgrade
If possible show us the errors (screenshot, for example) when you try to upgrade :)
Oh yeah, there's an upgrade path you need to follow e.g., you need to go to certain firmwares, to update to a higher firmware
See release notes of v1.4.0 for more details
Oh yeah, just to give you insight on why it isnt working (im guessing you tried to upgrade it directly, w/c of course will not work)
