[Android Q&A, Help & Troubleshooting] thomas-worm-ohm-universit:
Hello everyone,

I'm really new in android development. For my bachelor thesis I have to examine forensic methods on android.

Therefore I need the utility nanddump to get a full nand image including the OOB data.

Because I didn't find ready to use binaries I downloaded the mtd-utils and suceeded in cross compiling them with the android NDK.

Using it with

./nanddump -p /dev/mtd/mtd0ro

it prints the data from NAND.

But I need the raw oob data. So I used

./nanddump -n -o -p /dev/mtd/mtd0ro

But then I get

Block size 131072, page size 2048, OOB size 64
Dumping data starting at 0x00000000 and ending at 0x0c200000...
libmtd: error!: cannot read 2048 bytes from mtd0 (eraseblock 0, offset 0)
error 22 (Invalid argument)
nanddump: error!: mtd_read

What does this error mean?

I also recognized, that

./nanddump -o -p /dev/mtd/mtd0ro

will show data and a different error:

ECC failed: 0
ECC corrected: 0
Number of bad blocks: 0
Number of bbt blocks: 0
Block size 131072, page size 2048, OOB size 64
Dumping data starting at 0x00000000 and ending at 0x0c200000...
0x00000000: 03 00 00 00 01 00 00 00 ff ff 00 00 00 00 00 00
0x00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000100: 00 00 00 00 00 00 00 00 00 ff ff ff ed 41 00 00
0x00000110: 00 00 00 00 00 00 00 00 d1 af 2b 4c d6 b1 2b 4c
0x00000120: d6 b1 2b 4c ff ff ff ff ff ff ff ff ff ff ff ff
0x00000130: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000140: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000150: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000160: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000170: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000190: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000001a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000001b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000001c0: ff ff ff ff ff ff ff ff ff ff ff ff 00 00 00 00
0x000001d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000001e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000001f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000210: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000220: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000230: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000240: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000250: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000260: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000270: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000290: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000002a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000002b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000002c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000002d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000002e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000002f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000310: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000320: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000330: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000340: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000350: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000360: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000370: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000390: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000003a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000003b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000003c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000003d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000003e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000003f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000410: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000420: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000430: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000440: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000450: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000460: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000470: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000490: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000004a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000004b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000004c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000004d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000004e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000004f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000510: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000520: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000530: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000540: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000550: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000560: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000570: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000590: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000005a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000005b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000005c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000005d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000005e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000005f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000610: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000620: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000630: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000640: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000650: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000660: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000670: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000690: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000006a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000006b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000006c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000006d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000006e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000006f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000710: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000720: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000730: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000740: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000750: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000760: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000770: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000790: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000007a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000007b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000007c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000007d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000007e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000007f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
OOB Data: 00 10 00 00 01 00 00 00 00 00 00 00 ff ff 00 00
OOB Data: 30 ff ff ff 05 00 00 00 05 00 00 00 ff ff ff ff
OOB Data: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
OOB Data: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000800: 03 00 00 00 01 00 00 00 ff ff 75 73 72 00 00 00
0x00000810: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000820: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000830: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000840: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000850: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000860: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000870: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000890: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000008a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000008b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000008c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000008d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000008e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x000008f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000900: 00 00 00 00 00 00 00 00 00 ff ff ff ed 41 00 00
0x00000910: 00 00 00 00 00 00 00 00 77 b0 2b 4c 25 b1 2b 4c
0x00000920: 25 b1 2b 4c ff ff ff ff ff ff ff ff ff ff ff ff
0x00000930: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000940: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000950: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000960: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000970: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000990: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000009a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000009b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000009c0: ff ff ff ff ff ff ff ff ff ff ff ff 00 00 00 00
0x000009d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000009e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x000009f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000a90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000aa0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ab0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ac0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ad0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ae0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000af0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000b90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ba0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000bb0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000bc0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000bd0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000be0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000bf0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000c90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ca0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000cb0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000cc0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000cd0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ce0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000cf0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000d90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000da0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000db0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000dc0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000dd0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000de0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000df0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000e90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ea0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000eb0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ec0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ed0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ee0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ef0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000f90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000fa0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000fb0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000fc0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000fd0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000fe0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x00000ff0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
libmtd: error!: MEMREADOOB ioctl failed for mtd0, offset 2048 (eraseblock 0)
error 14 (Bad address)
nanddump: error!: libmtd: mtd_read_oob

I become so desperate. Can you please help me?

Thanks,

Thomas

//EDIT:

Running nanddump more times I recognized that last command sometimes is able to read OOB at 2048 but then errors on offset 4096. I don't really understand this behavior