If you have already tried to reboot your Mac or reinsert your JetDrive Lite and the situation still exists, please refer to the suggestions below:
1. Please try to put JetDrive Lite in at an angle and reinsert in the card slot. As this would be a problem with write protection sensor on the Mac,
please refer to following link for more details:
2.Please kindly take the product with the receipt back to the original retailer and ask for a repair or replacement service.