How to force EDL mode - stuck in Fastboot

How to force EDL mode - stuck in Fastboot fastboot_ error_ failed to identify current slot
➡️【Mk.com】✅Game Show · Crazy Time ✅ · Rainbow Fortune Live Stream · Money Drops Live · Who Wants to Be a Millionaire Roulette · Travel Fever · Adventures Beyond Wonderland Live · ✅  Trying to flash a brand new Pixel 3 , but something looks wrong Some error messages and apparently stuck in fastboot fastboot set active slot >fastboot flash boot magisk_ fastboot: error: Failed to identify current slot >fastboot flash boot magisk_ fastboot

fastboot set active slot Current Sensors 81 Viewing LED Sensors 82 Viewing Storage Sensors 83 Slot ID of the node in the enclosure This field is available

fastboot get active slot  Read-only The current status of the FRU object in the slot fruObjectNum 5 - Error status 6 I have total 3 slots but only using 1 SSD of 256 gb and 1 HDD of 1 TB , the slot which I'm not using can accommodate another SSD I guess