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Editorial Team
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Editorial Team
Asked: May 25, 20262026-05-25T06:48:49+00:00 2026-05-25T06:48:49+00:00

I have a binary file and i want to replace the value A2 at

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I have a binary file and i want to replace the value A2 at address DEADBEEF with some other value, say A1.

How can I do this with dd? If there are other tools that can do this, please suggest. But I plan to do this on iPhone so I can only work with most basic Unix tools.

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  1. Editorial Team
    Editorial Team
    2026-05-25T06:48:49+00:00Added an answer on May 25, 2026 at 6:48 am
    printf '\xa1' | dd of=somefile bs=1 seek=$((0xdeadbeef)) conv=notrunc
    
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