Im quite disappointed of my Meizu M3e because I cant change the theme . I already tried the clearing the data, factory resetting but still the problem still appear. I did it for almost 5 months already and I really hate it. I cant even find correct update file for it because It always says that its corrupted. I downloaded it for different device from the same site (meizu.com) but still nothing happen. Is this the perks of flyme os?

Can u just give me the correct procedure for this????!!!