samung galaxy S III I9300 SPD dead

Hello

I have one galaxy s III spd dead.
Flash with backup can't repair.
Format can't repair.
Help!


Mobile Firmware Version:SPRD3
>>> Downloading First Boot...
>>> Mobile Info
Project ID :Spreadtrum Boot Block version 1.2
CPU Name:6530
Flash ID:0xC860170000000000
Flash Name:SF_GD25LQ64
Flash Size:0x00800000 -> 8M