system of exploitation disappointing lag bug

this smartphone and although I regret my purchase and have the Try not to buy the phone because the poor brightness and quality of the slab and my screen is so used to the battery not last very lonptemps 1 day because of its very powerful processor my most Wholesale default the thing I blame a brand and regrets of taking these bug big lag defois I oblige the yen na extinguish completely fed up wiko said that sallait upload the maj 4.4 kikatt its been nothing but tjr 6 months congratulations wiko