Seeprom ?

Discussion in 'Wii U - Hacking & Backup Loaders' started by jbuck1975, Aug 10, 2017.

  1. jbuck1975

    jbuck1975 GBAtemp Advanced Fan

    Dec 28, 2015
    United States
    Of what use is seeprom file.
    While just playing around i thought.I'll dump seeprom with 5.5.2 and compare with 5.5.1
    I noticed 2 differences.

    Then i thought i wonder if there are differences with users on same system. So i dumped it again with different user. And this time different again.
    0000010 - 08 was 12 and 09 was 88 in 5.5.1
    0000010 - 08 was 15 and 09 was 2B in 5.5.2
    New user
    0000010 - 08 was 15 and 09 was 2F in 5.5.2
  2. povlur.

    povlur. GBAtemp Regular

    Aug 1, 2016
  3. GerbilSoft

    GerbilSoft GBAtemp Addict

    Mar 8, 2012
    United States
    The details of the SEEPROM are available here:

    The particular bytes you mentioned is part of the 8-byte field at 0x12, which is the RNG seed. It's incremented every time IOS-CRYPTO starts.
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