wifi wont work out of the box.. 

installed ubuntu 15.04
<code>
sudo apt-get install build-essential linux-headers-generic git
git clone https://github.com/hadess/rtl8723as.git
cd rtl8723as
sudo su
git checkout 82a224aff7cb5de5541588fc3e36444889cd0c35
make
make install
depmod -a
modprobe r8723bs
</code>

fixes wifi. the checkout command is due to a dependency that was added a few commits later that won't work on pre 4.0 kernels anymore.. so we need to use an old version of that module.