Using tool you've used to create it or using JTAG / direct EMMC tool.
i think you've forget about my case
http://sony.yt/topic...ase-z3-bricked/
http://sony.yt/topic...-taimg-convert/
you have said that there is no tool supporting hard bricked (ta damaged) Z3 in emergency mode, or other modes
even i have the full TA backup
is that correct?