Dell N5110 Display Flickers and DIM display

Hello Everyone,

I have Dell N5110 which had recently Display DIM issue.  I have contacted the local repair store, they've diagnosed and said it had issue display IO controller and needs to be changed.

They've replaced it and display was working fine for few weeks. After few weeks, I had my battery changed as it's health was in bizarre state after running diagnostic test and it prompted for replacing the battery. 

I have new battery installed and the display started flickering. The battery is original one as I have purchased it from dell store. I want some one to help me out in fixing this issue. 

I have installed Windows 10 recently, could that be a problem. If nothing can be fixed by troubleshooting, please help me out with nearest authorized service center so-that I can have the laptop checked once.

Thanks & Regards,

Rohit.P