Salam, I'm going to buy sony xperia z3 from local market. I found 2 pieces in good condition. One D6653 and other is D6603. Both on lollipop 5.x.x. D6653 seller said he will upgrade to marshmallow then i can buy from him. And D6603 seller said i have to update it my self after i have bought. I need to know if there's chance of any problems after upgrade. I heard local market sets are refurbished. But i can't tell the diff. The D6603 model is with box and charger only. Any kind of help/ Info would be great.
THanks in advance
THanks in advance