Does the PS4 Cheater payload successfully send? You should get a green successfully sent message in PS4 Cheater.
What version of the game do you have?
1) Start Hen.
2) Select Bin Loader, send PS4 Cheater payload.
3) Start GT.
4) Refresh the process list, if eboot.bin isn't automatically selected, use the drop-down menu and select it.
5) Select the first three in the memory ranges, this is the game's executable.
6) Select "string" in the scanning options and search for: release or releaseL depending on what version of the game you have.
release is for higher updates 1.47 - 1.57
releaseL is for the base game - update 1.14
The scan result will give you multiple hits, so you will have to view the memory of each result (start from the bottom, right click > Hex Editor). The address you want should look something like this:
gt7sp
product
release
Add this address to cheat list and replace release with debug, lock and save.
7) Restart game, now start refreshing process in PS4 Cheater, I've tried this ages ago and it takes 3 or 4 refreshers for the eboot.bin to be automatically selected, you have to have eboot.bin selected at earliest possible opportunity before the Sony Entertainment screen shows or else the debug menu cheat you made won't work.
This 100% works. Go to options and the debug menu is accessible at the bottom left corner.
*Note* The 1.57 update works on 6.72, it has the debug menu already enabled, all the extra content bar two cars, which came in later updates that require firmware 7.50 - 8.00
This is the best version to have.