[Solved]Unlock Bios Thinkpad T430 for DSDT Override

[astralsparks]

I'm not sure if this is the appropriate place for me to request but please hear me out.

I need help to downgrade my T430 Bios from 2.71 to 2.68, because on 2.71 I cannot do DSDT override for my eGPU setup.
somehow the updater prevents me to rollback to older bios.(any Idea how to trick the updater?)

I would like to request unlocking 2.71 to enable DSDT override or atleast give me a suggestion on how to downgrade my bios 

Sorry if this is not the appropriate place. 

Thank you

EDIT : the issue is solved please delete this thread

[Dudu2002]

I'm not sure if this is the appropriate place for me to request but please hear me out.

I need help to downgrade my T430 Bios from 2.71 to 2.68, because on 2.71 I cannot do DSDT override for my eGPU setup.
somehow the updater prevents me to rollback to older bios.(any Idea how to trick the updater?)

I would like to request unlocking 2.71 to enable DSDT override or atleast give me a suggestion on how to downgrade my bios 

Sorry if this is not the appropriate place. 

Thank you

Hi
flashing mod only through SPI-programmer + clip

[astralsparks]

I'm not sure if this is the appropriate place for me to request but please hear me out.

I need help to downgrade my T430 Bios from 2.71 to 2.68, because on 2.71 I cannot do DSDT override for my eGPU setup.
somehow the updater prevents me to rollback to older bios.(any Idea how to trick the updater?)

I would like to request unlocking 2.71 to enable DSDT override or atleast give me a suggestion on how to downgrade my bios 

Sorry if this is not the appropriate place. 

Thank you

Hi
flashing mod only through SPI-programmer + clip

I've solved the issue by flashing through the WinFlash64.exe myself not the UPTblabla.exe and add -sd parameter to skip the build check
Moderator can delete this thread afterwards
Thanks for your reply regardless

[rszegedi]

I'm not sure if this is the appropriate place for me to request but please hear me out.

I need help to downgrade my T430 Bios from 2.71 to 2.68, because on 2.71 I cannot do DSDT override for my eGPU setup.
somehow the updater prevents me to rollback to older bios.(any Idea how to trick the updater?)

I would like to request unlocking 2.71 to enable DSDT override or atleast give me a suggestion on how to downgrade my bios 

Sorry if this is not the appropriate place. 

Thank you

Hi
flashing mod only through SPI-programmer + clip

I've solved the issue by flashing through the WinFlash64.exe myself not the UPTblabla.exe and add -sd parameter to skip the build check
Moderator can delete this thread afterwards
Thanks for your reply regardless

Dear astralsparks!
Could you explain how could you downgrade the bios from 2.71 to 2.86? I have an issue with version 2.71. After the upgrade I cannot install an important PLC program. Before the upgrade this installer worked properly.
Thanks in advance.