Lenovo has done a work with this phone. I am using this phone from last 7-8 months till date it is not having a single issue. I got this phone from 12 k from amazon with a free back cover. the phone is really tough as it fall on ground almost 50+ times still it is not having small problem where as other brands gorilla glass3 phone get scattered by some falling on ground but this is a good piece of art.