I am also facing this problem from very long
This is so irritating
When you are watching a movie the grey screen always shows there ,and this thing makes the experience worst
Even other company phone whether of 10k
The are performing better in case of nothing phone 2a
I raised this issue vial email to customer support,they told to check my phone in service centre,when i went to service centre they are just fooling us by saying this is normal in all phone. .
I am totally upset by nothing brand ,
My honorable request to nothing that please correct this issue or exchange our phones., this is totally injustice and unacceptable.