1. install VPhoneOS on your phone
2. create an Android 7 virtual machine within it (this will take like 5 minutes)
3. use 32bit/64bit rom mix for the virtual machine
4. download and install both FRL and GameGuardian onto the virtual machine by using the 'Via' browser that is integrated into the machine
5. run GameGuardian, select the option "To hack 32-bit games in 64-bit virtual space."
6. open the new GameGuardian app by opening the app using either the "H2" or "S2" icon (one may be a bit quicker in terms of speed/crash less, that's for you to find out).
7. press Start
8. open FRL, make sure you are logged into the account you want to 'hex' parts in
9. press on the top left icon next to the app selection thing
10. select memory ranges
11. disable all, enable 'Ca' and 'A' (pretty sure these are the only ranges required for most memory editing unless you use gameguardian 24/7)
12. once hex is finished, go to FRL main menu
13. open settings
14. go to Profile
15. press Login, press 'OK', the screen should load for a bit (the game is saving the state in this case), then press 'Back', and your game should be saved.
troubleshooting:
if frl doesnt show up on the process list, try a different gameguardian installation within the virtual machine...
there are 3 options, Default, for use in 32bit app, for use in 64 bit app, try them until one works,
if the screen doesnt load after doing the Login save trick, go to any car, and purchase any car part, then sell it, then try again, this will alter the state of the game so that it actually tries to save.
hope this helped, and have fun if it did