Question Game updates firmware requirements override?

Discussion in 'Switch - Backup Loaders & Modchips' started by SkinZ, Aug 19, 2018.

  1. SkinZ
    OP

    SkinZ Member

    Newcomer
    3
    Aug 15, 2018
    United Kingdom
    Hi, when I run a XCI game like Mario Kart on 4.1.0 with SX it runs fine, but if you install a game update nsp, past a certain version number it will refuse to let you run the updated game without a firmware update.

    Obviously I could just run an older version but I was wondering if there is any way around this? Someone said devmenu could override firmware requirements but devmenu doesn't work on 4.1.0 from what I have read.

    I don't want to go to 5.1 firmware without burning fuses as I don't like autorcm as I often run the switch down to empty in sleep mode and don't want to wait hours to charge.

    Thanks in advance
     
  2. Draxzelex

    Draxzelex GBAtemp Guru

    Member
    17
    Aug 6, 2017
    United States
    New York City
    You cannot as the update is most likely encrypted with the masterkey revision found on firmwares 5.X. Theoretically, you could decrypt the .NSP and reencrypt it with the lowest masterkey revision but I have not seen anyone try this nor be successful with doing so. Also the override firmware requirement in DevMenu deletes game updates only so games installed with updates with higher firmwares can return to working on lower firmwares.
     
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  3. SkinZ
    OP

    SkinZ Member

    Newcomer
    3
    Aug 15, 2018
    United Kingdom
    Ok, thanks for the explanation :bow:
     
  4. guily6669

    guily6669 GbaTemp is my Drug

    Member
    7
    Jun 3, 2013
    United States
    Doomed Island
    TX in their FAQ said they are working on something similar which is playing a game on a lower FW than the required, but I don't know if they are even working on it and if they will ever achieve it, and even if they made it work in the future doesn't mean it would work on the updates...
     
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  5. adrifcastr

    adrifcastr GBAtemp Addict

    Member
    8
    Sep 12, 2016
    Germany
    This is the wrongest thing I have ever heard. .NSP is a unencrypted plaintext file container. The NCA's inside are encrypted with the corresponding titlekey.
     
  6. Triptamine

    Triptamine Member

    Newcomer
    2
    Jun 25, 2018
    Australia
    Let's keep it civil here. "Most wrong".
     
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