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dahgifted:
am using infinix x551 and i do get up to 700kb/s while browsing buh i recently downloaded mtk and now am getting 15kb/sec please is it d mtk dat course it and a friend usisnd d same network as i get fast browsing speed...i use mtn

Though i don't normally touch mediatek phones not to talk of infinix but i think it's your network. I use mtn too and their network does fluctuate and it depends on the site you're browsing or downloading, if their server is slow there's nothing mtn or Infinix can do about it. Cheers