The instruction of DS3622xs+ for DSM 7.1 RC must use TCRP.   1. Download the DSM 7.1 PAT file from the Synology Download Center with 7.0.1 already installed. Update and restore in the synology DSM 7.0.1 to manually update. (You must precede this course.) Please do not go to update the bootloader below.) https://global.download.synology.com/download/DSM/release/7.1/42621/DSM_DS3622xs%2B_42621.pat?model=DS3622xs%2B&bays=12&dsm_version=7.1&build_number=42621&
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