diff --git a/nuc/usb4t-dropouts.md b/nuc/usb4t-dropouts.md
index 0ae4447..5519d6b 100644
--- a/nuc/usb4t-dropouts.md
+++ b/nuc/usb4t-dropouts.md
@@ -63,9 +63,11 @@ The scrub also served as a 2.5-hour soak test of the new cable:
    cable straight into a rear USB-3 port, no hub. It survived a 2.5 h
    scrub, then **dropped again on 2026-08-29 16:22** (pool suspended,
    cleared 08-30 00:32). **Cable ruled out.**
-2. **Disable USB autosuspend** so power management cannot drop the
-   device: `usbcore.autosuspend=-1` on the kernel command line, or
-   per-device `echo on > /sys/bus/usb/devices/<dev>/power/control`.
+2. ~~**Disable USB autosuspend**~~ — **done, and ruled out**: the
+   kernel cmdline carries `usb-storage.quirks=152d:0578:u` (UAS
+   disabled for this bridge) and the device sits at
+   `power/control=on`. It still dropped on 2026-08-29, so neither
+   power management nor UAS explains this.
 3. **Replace the enclosure — now the prime candidate.** With the cable
    ruled out and the disk SMART-clean (0 reallocated/pending/CRC), the
    JMicron 152d:0578 bridge is what remains. An ASMedia-based