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[mengqianke]

When i flash nand of my xbox360 using rawflash v4 , it returns two errors as below:
！sfcx：bad block found at 000001BD
 block 0x1BD seems bad，status 0x00000250
 ！sfcx：bad block found at 000003FF
 block 0x3FF seems bad，status 0x00000250

but when i opened my backup nand file using '360 Flash Tool', there is only one bad block info:
Note: Bad Block ID 0x1BD [Offset: 0x0072BA00]
 -> block ID 0x1BD found @ 0x3FF [Offset: 0x0107BE00]

Is the 0x3FF block really broken?
Now my 360 just freeze at the bootup logo screen and no other info pops up. but I can boot into Xell.

Is there a way to sovle this problem? anyone pls help, thx.