I purchased an s20+ and it had green lines after a software update ...I went and complained and they said it's screen and has nothing to do with updates and they advised I should get a new screen which I did....and yesterday making it 2 weeks I got the new screen costing me over 200k+ in Naira another line appeard, and I updated the phone on Sunday and this line appeared on Wednesday.....the galaxy s20+ definitely is a bad phone please do not buy it whereever you see it
