Since January 1, 2016, the official update to lollipop is already available for the huawei G play mini CHC-U01 sold in Spain in the free market
You can download it at the following address
Firmware Lollipop G play mini

Once downloaded to update your phones you just have to follow these steps
1- Download, unzip the folder and place sdload in the root of the sd.
2- On the mobile, go to updater, software, menu and local update.
3- There appears the update.app that we have placed in the root (sdload).
4- It is installed and period.

Once installed I notice the phone more fluid and with a better visual aspect