I beleive that the image I've uploaded is not suitable for your miner. It has to have 8 blades to be compatible. Can you post some pics of inside the miner ?
If it's a 2TH dragon it is 8 blade. As far as I know they did not make a 4 blade model that achieved 2T.
well maybe its not a dragon ? check pics - see if you can tell what it is
there are 4 blades with 16 chips each 28nm