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Otp.bin Seeprom.bin - 

# Check if size matches standard EEPROM
stat -c %s seeprom.bin

Real-world caution: On routers like the Linksys WRT series, restoring a seeprom.bin from another device will cause "Factory MAC mismatch" errors in the logs, and some OEM firmwares will enter a recovery loop.

  • Size: Very small (e.g., 128 bytes, 1 Kbit).
  • Usage: Factory-programmed once; immutable at runtime.

    • It is important to clarify that while the physical memory is "One-Time Programmable," the otp.bin file can be read and backed up indefinitely once the console is exploited. The term refers to the hardware limitation that the data cannot be changed, not that it cannot be copied. otp.bin seeprom.bin

    Many SEEPROMs have a CRC16 at the end. For example, a Broadcom-based router SEEPROM often uses a CCITT CRC over bytes 0..(N-3). Tools like seeprom-tools (open source) can verify this. # Check if size matches standard EEPROM stat -c %s seeprom

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