I want to buy this phone. but I heard about memory problem that it eats lots of memory by other section. How to clean up other memory section? Heard it eat lots of memory without any reason. And my docomo 2g net is work well on my nokia C3. is it work well on lumia 520? I can't afford 3g so is it worth buying lumia 520 to use 2g on it? i mean is 2g work well on it?