4.4.3 won't boot tethered or otherwise

I’ve followed the instructions to the letter and plugged the HDMI cable in less than 4 seconds after unplugging the USB cable, everything says it should work and was fine but the screen just shows the connect to iTunes logo.

Power was plugged in, jailbreak was successful, tethered boot said everything went correctly, but still nothing.

Ideas?

Thankfully I have a 4.3 device already jailbroken but just got another one for the living room but Apple is only signing 4.4.3 firmware now and I don’t have blobs as it’s a new device.