Otp.bin | Seeprom.bin

# For external SPI flash containing both
dd if=/dev/mtd0 of=otp_backup.bin bs=1k count=64
dd if=/dev/mtd1 of=seeprom_backup.bin bs=1k count=128

You should never share your otp.bin or seeprom.bin publicly.

Because these files contain your console's unique cryptographic identity, sharing them effectively gives others the ability to impersonate your console.

OTP stands for One-Time Programmable.

Unlike Flash memory (which can be erased and rewritten thousands of times), OTP memory can be written to exactly once. After a bit is flipped from 1 to 0, it cannot be reverted. otp.bin seeprom.bin

The otp.bin file is a sector-by-sector image of this OTP region. Common sizes include 256 bytes, 1KB, or 4KB. This file contains data that is fused into the silicon during manufacturing.

Typical contents of OTP:

SEEPROM stands for Serial Electrically Erasable Programmable Read-Only Memory. # For external SPI flash containing both dd

In the context of seeprom.bin, this usually refers to the NVRAM (Non-Volatile RAM) partition or an external EEPROM chip holding configuration data.

Unlike OTP, SEEPROM is rewritable (though with a limited cycle life, typically 100k to 1M writes). The seeprom.bin file is a raw dump of this memory.

Typical contents of SEEPROM:

If you are responsible for generating otp.bin and seeprom.bin during manufacturing:

You might see these files when:

If you need a different type of text (e.g., a Python script to compare them, a Binwalk signature, or a manual entry for a product), please clarify. You should never share your otp