My Samsung Galaxy e7 broken 2 times and changed both times. Now the problem is that the display is not broken but there is no light . Screen is totally blank. What should I have to do . Samsung service centre is asking me to change the display. I can't spend too much money on this bakwas cell phone. It's totally junk. Never expected this kind of cell phones from Samsung. I was a big fan of Samsung. But this time my heart is totally broken like Samsung E7.