as William has said it's not possible and clearly stated. i haven't got time for people who can't be bothered to read!
Please post english translations if you want me to assist.
Please post english translations if you want me to assist./
thats a new one i don't know what to suggest for this
you can't
I don't understand the query
yes all sync3 devices you may need an updated usb hub
you likely don't have enough free space on the apim therefore you won't be able to downgrade, try 19101 though