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Add T1 troubleshooting section

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neon ball
2024-09-15 20:17:26 +03:00
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docs/TROUBLESHOOTING.md
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@@ -22,6 +22,7 @@ Here are some common errors that users may experience while using this patcher:
* [Stuck on "Less than a minute remaining..."](#stuck-on-less-than-a-minute-remaining)
* [No acceleration after a Metal GPU swap on Mac Pro](#no-acceleration-after-a-metal-gpu-swap-on-mac-pro)
* [Keyboard, Mouse and Trackpad not working in installer or after update](#keyboard-mouse-and-trackpad-not-working-in-installer-or-after-update)
* [No T1 functionality after installing Sonoma or newer](##no-t1-functionality-after-installing-sonoma-or-newer)
## OpenCore Legacy Patcher not launching
@@ -262,3 +263,11 @@ Applicable models include:
![](./images/usb11-chart.png)
## No T1 functionality after installing Sonoma or newer
If you notice your Touchbar etc not working, this means loss of T1 functionality.
Wiping the entire disk using Disk Utility with Sonoma or newer causes the T1 firmware to be removed, which due to removed support, the macOS Sonoma+ installer will not restore. When installing Sonoma or newer, only wipe the volume containing the operating system (e.g. Macintosh HD or whichever name you have given it).
To restore T1 functionality, Ventura or older has to be reinstalled. This can be done in another volume or external disk as well, as long as the OS is booted once. After this you can wipe the old OS or unplug the external disk.