Fastboot Error Failed To Boot Into Userspace Fastboot One Or More Components Might Be Unbootable Here

fastboot boot lineage-recovery.img If this works, you can flash from inside recovery. Download the full factory image for your exact device model.

(example):

fastboot flash boot boot.img fastboot flash dtbo dtbo.img fastboot flash vendor_boot vendor_boot.img fastboot flash super super.img # If super.img is sparse Or use the device’s flash-all script (after removing -w if you want to keep data). Erase and recreate super metadata: fastboot boot lineage-recovery