I think my phones EMMC chip is dead. At my days i baked some dead graphic cards and get somewhat good results.
Can same thing work with EMMC chip on a phone?
If you never heard of it here a link.
https://www.instructables.com/id/How-to-repair-your-Graphics-Card-by-baking-it/
My original problem here if you are curious.Asus zenfone 6 E:failed to mount/ cache