NAND Flash memory Formatted Completely..........Cant Flash Stock Rom :(

Hi I am here with lots of expectations .....
Please Help me.....
I recently successfully Flashed Stock Rom on my MMX A46.
Now I am trying to Flash it again It wont rather it stucks on Downloading DA with red Bar on 100% and wont even move after 4:00 min.
please help
:(:(:(:(:(:(

Memory Test Report::::::


Internal RAM:

Size = 0x00020000 (128KB)

External RAM:

Type = DRAM

Size = 0x10000000 (256MB/2048Mb)

NAND Flash:

Device ID = "[TOSHIBA] TYBC0A111557KC" (115)
Size = 0x20000000 (512MB/4096Mb)

EMMC :

ERROR: EMMC was not detected!

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