This is a SD Card Image, not and actual sd card, you will simply drag and drop the content of the zip file I send you to a micro sd card. It is a 1 Step process that will not only load the latest Blissz for the L3+ and L3++ over any firmware, but will also bypass the "Cannot Find Signature" error that prevents you from loading the image if you have one of the newer Antminer firmware that block 3rd party firmware.
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