Turning on USB in BIOS
Turning on USB in Windows
Do take note that you would need the "Yellow USB" port in order to charge your devices as the normal USB ports does not supply enough voltage.
The Lenovo Social blog has covered this and a Youtube clip is available for your viewing. (Link)
**The laptop would need to be plugged into the AC when laptop is turned off**
**To work without AC, the laptop would need to be in Standby Mode for the charging to work**