I have my lumia 535 single sim. Problems whit screen are amazing, screen just bouncing up and down, power of/on. 2 fingers on screen provide me funny catching screen. Typing messages whit 2 hands mission imposible.
I send my lumia 535 to service but new softwere and new screen nothing help and have old problems. I send continually to service my lumia 535 and after changing matherboard phone my lumia 535 work perfectly. For all peoples who have hardver version 3.0 (like me) this is option to solve problems, changing motherboard. For lumia 535 (or others) whit hardver version 5.0 problem CAN be fixed whit changing display.