Item description:

To use this save you use the "Load" game feature, do not use continue or it will not work.

Start the game, load the save on file which will put you in Chapter 10 Bus Depot. From where you start go straight ahead to the open white tent and pick up the last toolbox collectible on the bench to your right in the tent. Then open up your inventory and upgrade the last few things for Joel to get the upgrade Joel trophy. Then go to the far corner to get to the white tent with the workbench. Upgrade the flamethrower and the shotgun to pop the trophy.