As i am using Developer Preview on my L525 and cortana by changing the region,as i changed back my region to India and disabled cortana,i noticed that in settings menu,display option is not opening.It shows 'loading' and revert backs to settings menu,i am unable to configure my display setting..Moreover Nokia Camera App also stopped working,but i reinstalled it from store so its working again,but for Display setting ,its the same scenario.Please help.