I have a problem with my Coolpad Mega 3.
Sometimes I loose fast data connection (3G/4G) and phone switches to EDGE.
But when I go back to area with 3G or 4G network, then it doesn't switch back to 3G/4G immediatelly. It takes a few minutes or hours or it will stay stuck.
Is there some way how to solve it? e.g. new firmware? This is bug thats makes Coolpad very uncomfortable to use.
I used iPhone 4 and Acer Liquid E700, and they react much much better.