Re: Mass Effect 1 end of game's endless loop
First, please don't make several posts about the same problem. I closed the threads you necroed.
Second, I doubt that there is a glitch.
After you beat the game you have the option to "Resume", that will bring you back to the last save before the fight with Sovereign, or you can "Load" a save game before you hit Ilos, the point of no return in ME1 (From here you only can go to the endgame)
That is not a glitch but intended behavior.
If you did not finished some missions you can get back and deal with them, and then return to the end game again. But you will not be able to reach Level 60 in one playthrough, there is simply not enough XP in the game.
To reach level 60 you have to start a New Game +. Or in other words, you have to import the character you finished ME1 back into the game and start a new playthrough.
