why my fast charge in note 4 is greyy

[aassouad]

After i get update today on my note 4 , the charging become slow i checked this function and it grey even box is ticked,
How i can enable this function also i have google play service is turn off how to turn it on of this affect the charging
Thanks Eddy

 

[the tall guy]

Hi, are you still using the same charger that came with the phone?