Samsung S10+ Phone gone weird

[Gingerbread_2001]

Hello,

My Samsung S10+ Phone been working perfectly fine no issues, not been dropped or anything like that. It gets looked after very good to be fair however when I got home my phone shown this white block on bottom of the screen and its glitching the phone out is this part of the screen lighting or a software issue? can someone help me please out of my years of having Samsung phones never ever encounted this before.

Thanks.

[Steven9761]

Back up, then try a hard reset.

[Gingerbread_2001]

What if it does not work mate?

[Steven9761]

Keep the backup safe, then. After that, book your phone in for a repair. If you haven't dropped, or otherwise damaged your phone, then I don't think it is component failure (although that is possible). Once you've tried the hard reset, boot the phone up and, if all looks okay, restore your saved backup.

[Gingerbread_2001]

Hi there,

What can cause it though?, if it's not been dropped? 

[Steven9761]

Haven't a clue. The engineers might know.