Pathetic flagship phones from Samsung. My S23 Ultra is dead and the service center is costing 37k INR to install a new motherboard. It's a 2 year brand new phone. Don't buy any flagship phones and save your hard earned money.
Get it repaired outside they will take 3k-4k for CPU reballing once it is repaired take backup & sell the phone as soon as possible, I have moved now to iOS & I am not going backup scrap samsung phones.
Same thing happened to my S23 Ultra also all of sudden it got dead & it was in brand new condition.SVC is asking 38k to replace the board & all the data will get erased after that. Samsung are selling worst smartphones & I cannot trust them now.