Whenever I switch on the camera module, my cellphone starts hanging. It runs smoothly otherwise, even while handling heavy applications. This is a recent problem, what could be the cause of it? - Asmita Khedekar
We would have advised you to download an efficient Task Manager and reduce the number of apps, but since your phone otherwise runs quickly, the solution is simple. There must be too many photos and videos that are saved in your Gallery. The camera module and the images saved on the phone are always linked, and if the folder is heavy, the camera tends to lag. Back up the data and empty it!