Sleep/wake not working about lenovo-thinkpad-t450-t450s-hackintosh-guide-opencore HOT 16 CLOSED

Try updating via Windows. The patched DSDTs are patched based on the latest BIOS version

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Try updating via Windows. The patched DSDTs are patched based on the latest BIOS version

Tried that also. Manually, via Lenovo updater... just out of ideas... :(

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Also sometimes when trying to wake, laptop reboots.

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I just realized that my BIOS version is JBET54WW (1.19), while EC version is 1.04. As I understand these two are bundled, and on lenovo download section for BIOS it says that the 1.02 version of EC is bundled with JBET54WW. Does anyone have an idea how can that be?

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Do you use an External monitor?

Do you have the Intel Wifi card or Broadcom?

Do you happen to have any peripherals connected?

Do you have Ethernet connected when this happens?

Also turn off Wake ON LAN in the BIOS and in macOS settings

For BIOS update try Resetting it to default settings then turn off Rollback prevention. Sometimes it thinks it's on the latest version and refuses all updates.

Also check if there's any computrace Settings turned on. That can prevent BIOS updates if it was previously set up by corporate IT

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Do you use an External monitor?
No. I tried once hooking it with DP and DVI cable via docking station and it didn't work. Didn't investigate further still.

Do you have the Intel Wifi card or Broadcom?
Intel. Works like a charm with airport for Big Sur.

Do you happen to have any peripherals connected?
Usually no. Maybe just usb stick but same outcome with or without.

Do you have Ethernet connected when this happens?
No.

Also turn off Wake ON LAN in the BIOS and in macOS settings
Also did turn off.

For BIOS update try Resetting it to default settings then turn off Rollback prevention. Sometimes it thinks it's on the latest version and refuses all updates.
This I found by googling, didn't help.

Also check if there's any computrace Settings turned on. That can prevent BIOS updates if it was previously set up by corporate IT
Actually this is my old corporate laptop, I'll check that once more...

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Also check if there's any computrace Settings turned on. That can prevent BIOS updates if it was previously set up by corporate IT

I've set it to Permanently disabled. Didn't work. :(

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You'll have to find a way to update the bios. There's an ssdt patch in this EFI that fixes sleep/wake issues so it's probably not working on old BIOS versions

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You'll have to find a way to update the bios. There's an ssdt patch in this EFI that fixes sleep/wake issues so it's probably not working on old BIOS versions

Went back to windows to try with flash utility. I noticed after the flash process two text files appear in the flash utility folder (attached). One say flash process was successful (but I still have the same bios version) and the other one something about drive G: not available... Any idea what that could mean?
null.txt
Winuptp.log

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The first files has something to do with BitLocker. Do you have it enabled?

Also does it reboot when it says successful?

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There's definitely some restrictions put in by the IT who previously managed that laptop

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Just realized same thing with sleep/wake happens in win10 to!

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Then it's definitely a BIOS issue.

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I no longer have that laptop so unfortunately I can no longer offer support for this repo

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