The voltage offset is not changing after using sudo command

[tatthang0501]

Hello,
I'm using Macbook pro 16 inch 2019, after using sudo command in the screenshot (1), the voltage is still 0 mV.
Can anyone help me? This is my first time using Macintosh and I've never use Hackintosh before.

Thank you everyone!!!

[tatthang0501]

I'm using macOS Monterey and pretend to downgrade to Catalina, will it work on Catalina?

[tatthang0501]

any help please? :(

[lloydeeaquino]

Hi I want to know what cpu temp does the voltageshift is showing when running the info flag? Because I use intel app and cannot find that temperature, I can say that because voltageshift gives 90+C temps while mine only shows 20-30C powermetrics.

[teqtic]

Your firmware update when you ran Monterey would have locked the register to which the undervolts apply. If this is the case you will need to modify your firmware with a physical programmer as explained below:

https://github.com/IsmaelHG/UndervoltPatchMacBook

I just did this and can confirm it works with version 478.0.0.0 (latest Big Sur). Which firmware version is running on yours?