The purpose of this OneClick is not to FIX your data.img lockup brick, it is to avoid getting it in the first place.My phone is brick but I can still go to odin mode and flash recovery or modem. But it will not odin a one click rom, it get stuck at data.img. Is it possible to recover from this or should I just sent to jtag people....Dang! they charge $50..but I guess is better than a useless phone collecting dust.
Once you have the /data corruption superbrick, JTAG won't work either. There are internal structures that are corrupted causing the phone to lock up whenever those corrupted structures are accessed.
You might have some luck trying to remap around the problem areas with parted and/or custom pit files, but if you have warranty available, I would use it to get your phone replaced.