How to downgrade a kext?

[jamesst20]

Hi,

I'm currently trying to run Big Sur on a computer with an Hynix SSD that is unsupported. However, there are kernel patches available for 10.14.x such as

<dict>
    <key>Comment</key>
    <string>IONVMeFamily patch for SSD Liteon etc. (c)jief_machak</string>
    <key>Disabled</key>
    <false/>
    <key>MatchOS</key>
    <string>10.15.x</string>
    <key>Name</key>
    <string>com.apple.iokit.IONVMeFamily</string>
    <key>Find</key>
    <data>D4NOAQAA</data>
    <key>Replace</key>
    <data>kJCQkJCQ</data>
</dict>

<dict>
    <key>Comment</key>
    <string>(10.14.0) IONVMeFamily: Ignore FLBAS bit:4 being set - for Plextor/LiteOn/Hynix</string>
    <key>Disabled</key>
    <false/>
    <key>Name</key>
    <string>IONVMeFamily</string>
    <key>Find</key>
    <data>ikga9sEQ</data>
    <key>Replace</key>
    <data>ikga9sEA</data>
</dict>

I can't boot the Big Sur installer right now. Is there a way to load the 10.14.0 kext in favor of the 11.2?

Thank you
James

 

[jamesst20]

@RehabMan

Sorry for tagging you straight, but perhaps it's more a techy question you might have the answer of ?

Thanks in advance

 

[P1LGRIM]

Sorry for tagging you straight, but perhaps it's more a techy question you might have the answer of ?

He's not been here for almost two years.

 

[jamesst20]

He's not been here for almost two years.

Hahaha my bad I wasn't aware of that. Would you happen to know the answer ?

Another way to achieve this goal would be to replace kext in System/Library/Extensions of the installer but I am no longer able to find this directory in Big Sur

 

[P1LGRIM]

Would you happen to know the answer ?

No.