Black Screen. Phone not hard resetting.

[RS_uk]

Note 20 ultra was fine last night when I went to bed, screen was black this morning but responded to me turning alarm off.

Have not dropped it or got it wet. Phone is in perfect condition and was new last year. 

Cannot perform hard reset, screen remains black even though handset vibrates. 

I am under maker's warranty still as it has broken withing 24 months.

Is there a way to fix this or get a replacement handset?

[Mitzzz999]

Sounds like a fault unless someone can recommend an idea... going to your nearest Samsung Experience Store or maybe trying to book repair support online is your best way going forward.

https://www.samsung.com/uk/support/repair/

If you got it from your network you can go through that channel too as they have their own repair processes.

[Official_Block]

Try holding down the power button for 30 seconds whilst being charged.

[RS_uk]

I have already tried this, and the volume+power button to initiate reset. Same thing happens for both... Screen stays black and the handset vibrates but does not rest. 

[Official_Block]

Ok, sorry to hear that. I have no more ideas and the only thing you can do is go to the Samsung website and book a repair.