Update Tool doesn't see splash screen bmz file

Dear,
I have problem when i want to update splash screen with Update Tool version 5.7.0 on VF50 module with 1.4Beta1 version of image. Update Tool doesn’t see any bmz file although i have changed Type to SplashScreen files. At this link “http://developer.toradex.com/knowledge-base/update-tool#Wich_Version_To_Use” there is no Update Tool for VF50 module. Which update tool should i use and why it doesn’t see any bmz file?
Regards

Vybrid uses different format of splash screen. If you already have splash screen tool please contact email support referencing this threat and we will send you new tool. If you just need to convert 1 image we can do it for the cost of 1 support hour.