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Originally Posted by 2Wires
Which bytes did you change? Did you check if the image was still valid?
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Bytes was in the centre of gif. I'll chek it with Paint. It is sensitive to the file format. It did not open edited files, that other progs opened.
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Originally Posted by 2Wires
Paint opened it but that doesn't anything since it might repair the file.
Best way would be to replace it with a smaller valid file.
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Diferense between files I must fill with 00?
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Originally Posted by 2Wires
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I can do it only tomorrow
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Originally Posted by 2Wires
If we know where the checksum is and how it is calculated. We just calculate it for the altered navboot.
But that need more inside information or luck finding it  |
I thought, that checksum calculating method is the same for all files. I'm a newbie in it.