The Storage on your phone is a NAND Chip Soldered to the motherboard with a black UV Glue. This phone has a non-encrypted android version and can be recovered in case the motherboard is dead.
But this is a simple phone and may there is something more easy to fix, like a bad charging port/dock or a bad screen.
If you have the skills find a multi-meter and check if your phone is taking voltage from the charging port.