At first I got updated my A75 from service centre. Then for an experience, I updated it again my self using files given in this blog.
I don't know why, but I found my mobile slow with this update. It also hanged at some instants. So I had to go again to service centre for this software update. After updating from service centre, again my mobile is working normally.
I am using A75 with 16GB card. Its launcher some times takes very long time to initialise. I have also tried Go, ADW, Zeam and Balanced launchers.
Any comments for improvement?