I upgraded my 2014 MacBook Pro to Sonoma using OpenCore. Later, aiming to revert to the original firmware, I installed the official Big Sur firmware from Apple in recovery mode by pressing Command + Alt + R during startup. However, now my USB and HDMI ports are not working. Only one of the Thunderbolt ports is operational. When installing Sonoma, I had applied a patch to ensure the USBs would work, but they stopped working after the downgrade. What could be the issue?
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