If your device is set to use RAID 1 and formatted, you can’t remove the drive and connect it to PC/Mac via SATA or any other bridge and able to see your data. When the LED lid as orange, it indicate there is a possible you have a bad RAID. You can try to have one hard drive in your unit, connect it your computer. Check if you can see your data. If you able to see your data with the device has only one hard drive. Then you can format the other hard drive from your computer attach it through the bridge or SATA. After you can put it back in to your device. Made sure to power of your device before you remove and add the drive to the unit. Once both hard drives are in the unit then you can use WD Utilities or WD Discovery to rebuild your RAID.
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