UASP and TRIM for JMicron JMS561U USB 3.0 dual-bay SATA enclosures (Ugreen CM198, 152d:1561): firmware patch, builder, flash inspector, flashing and unbrick guide, reverse-engineering notes. fstrim works on Linux.
linux firmware reverse-engineering trim uas ssd 8051 flashrom unbrick uasp discard fstrim ch347 ugreen usb-sata firmware-patch jmicron jms561 jms561u sata-bridge
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Updated
Nov 5, 2026 - Python