I had updated my Nokia 2.1 to pie go update of feb-19! After that my phone behaved bad! The display becomes white from all the 4 sides. Sometimes the display started flickering at the white areas! It basically occured during or after calling someone!
Then I visited the Nokia care where they degraded my OS to Oreo 8.1.0 & said me to update my phone after few months when the march patch rolls out!
I must inform HMD-Nokia that to resolve the faulty Oreo-Pie upgrade of feb-19 asap!