You did something wrong each of those 10 times. Double check the game.conf file make sure the size is 185mb & take the time to follow the steps correctly NO short cuts.
The method I post is long and not all necessary however we are looking for where you are making your mistake, In the end following the steps I post will get you a resigned save game unless you're still making a mistake, only you can fix your problem if you don't want to follow the simple process I posted of resigning a GT6 (not max pain) game save
It works, many do it regularly.