The risk to brick TV is common for firmware flashing procedure according samsung user manual and FFB.
With version 5.5 risk is almost the same. But... make it on your own risk...
If not - you have to make settings in service menu first, just after enabling wiselink write -> on, you get yellow button working as it should.
It is ok. You wrote incorrect. Should be [T-CHL7DEUC]-Image.gomsgoms wrote:[T-CHL7DEUC]-Image.bin doesn't have extention in zip (LExxB65x, LExxB75x, PSxxB65x) : it is ok or not?