If nothing else works you can try baking your GPU.
Remove maximum amount of plastic material from it and put it in the oven for 10-15 min at max temperature.
If you're lucky it may be revived.
^
Sony phones out of the question, they don't have RAW image capture even with root I think plus their JPEGs are terrible imo.
I'm actually buying a new phone because my Nexus 5x bootlooped and died :p
If history is anything to go by, even if it was obtained at scalping prices, they would still be advertised to the whole world as being bought for only 30k-40k to laugh at people's faces for buying it at a higher price lol