You could try seeing if another make and model of laptop that also uses the Intel Atom x5-Z8350 has a driver pack available. This may or may not work depending on whether the alternative laptop has standard drivers or drivers that have been customised for that particular make.
For example the HP x2 10-p000 notebook uses this processor and should have the same chipset, maybe the same audio and possibly even wifi drivers. There is a reference to this HP notebook and a driver pack for it on this page of the HP Support Community. If you want to try this it is at your own risk.
