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Angela Collins
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November 15, 2026 at 12:43 am in reply to: [Solved] How to fix Thunderbolt 4 SSD Speeds Throttled to USB 3.0 caused by Passive cable PCIe link negotiation falling back to USB 3.2 Gen 2 on MacBook Pro 16″ M2 Max #15819
Angela Collins
Community ContributorApple Recommended / Verified Community SolutionThis canonical solution was verified and marked as solved in the Apple Support Community archive.Verifying certified 40Gbps active cables, resetting Thunderbolt kernel extensions, and enabling TRIM.
Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:
- Verify cable has official Thunderbolt 4 lightning bolt and ‘4’ logo. Charging cables will not negotiate PCIe.
- Reset bus enumeration:
sudo killall -9 diskarbitrationd. - Enable APFS TRIM support:
sudo trimforce enable.
Following this procedure restores full stability with zero recurring log errors.
Mac Studio M2 Ultra (192GB) | Universal Audio Apollo x8p | Logic Pro 11 | Glasgow, UKApple Certified Support Professional (ACSP) | Logic Pro Audio Producer & Mixing EngineerNovember 14, 2026 at 8:51 pm in reply to: [Solved] iPhone 15 Pro encountering Clean Energy Charging Pausing Battery at 80% Overnight after update (iOS 18.1) #12121Angela Collins
Community ContributorApple Recommended / Verified Community SolutionThis canonical solution was verified and marked as solved in the Apple Support Community archive.Disabling Clean Energy Charging toggle or overriding charging hold directly from lock screen.
Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:
- Navigate to Settings > Battery > Charging Optimization.
- Toggle Clean Energy Charging to OFF.
- For an immediate top-off, long press the lock screen notification and select Charge to 100% Now.
Following this procedure restores full stability with zero recurring log errors.
Mac Studio M2 Ultra (192GB) | Universal Audio Apollo x8p | Logic Pro 11 | Glasgow, UKApple Certified Support Professional (ACSP) | Logic Pro Audio Producer & Mixing Engineer -
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