* Ward Vandewege ward@gnu.org [061013 23:10]:
# xxd -g1 orig.img |head -n10 0000000: ff ff ff ff ff ff ff ff 8c a5 02 00 96 fb 3e 2f ..............>/ 0000010: 10 00 5a aa ff ff 1b 00 00 00 00 00 89 a5 02 00 ..Z............. 0000020: 1f 58 05 00 2d c8 8d de fd d6 24 ae d7 fd fb 7b .X..-.....$....{ 0000030: cc 33 30 c0 73 31 55 15 69 01 a2 ca e4 b6 42 12 .30.s1U.i.....B. 0000040: cd 18 b0 a8 0a ac b6 06 2a e0 08 01 4b f9 ab 95 ........*...K... 0000050: 71 73 37 b1 aa a9 d9 0a 29 9b 67 8f 29 aa e5 c5 qs7.....).g.)... 0000060: f7 8a b5 ce 35 72 e7 b9 29 30 05 26 0e c4 05 39 ....5r..)0.&...9 0000070: 48 2b ce 45 37 38 88 91 7e cb 62 a4 b4 00 04 6f H+.E78..~.b....o 0000080: ff f6 f0 1a bd f7 9c be ef 75 dd 77 dd 6b bd d6 .........u.w.k.. 0000090: bd ef 83 de fd ae eb 5f 6b bd fb c5 fb c5 ef 97 ......._k.......
So; first 8 bytes are all ff.
can you try to erase the chip, read it and see if its all FF?
something like:
flashrom -e flashrom -r tmp.out xxd -g1 tmp.out|cut -c9- |sort -u
should not spit out more than a line of ff ff ff ff ...