First off you have to know how to dupe with the glitch. If you don't check the link on the side. Also you will need any armor with at least 1 slot, God/Ability (you can use others like God/Power too), and 1 meseta (if your not an andriod).
First equip the frame. You must have the God/Ability and meseta (if needed) in your inventory as well. Only equip the frame.
Next, you must have opened the bank window and be able to walk around with it. After this has occurred, make sure that Deposit/Take is showing.
Push the start button. Make sure that the word "Deposit" is highlighted on the bank window and the words "Item Pack" are highlighted in the start menu. Push the "A" button one time. This will take you to a new start menu screen. It will also give you two new options on the bank window, "Meseta" and "Item" of which "Meseta" will be the highlighted word. Now, push "Down" on the D-Pad. This will highlight both the words "Items" and the word "Item". At this point, push the "A" button again.
Now, for the strange part… On the top window, you must have the Frame/Armor highlighted and on the bottom window you must have the God/Ability highlighted. Push the D-Pad either up or down as many times as it takes to make this happen. The one meseta is there to offset the bottom screen so that this can happen. If you have a HUcast, HUcaseal, RAcast, or RAcaseal, you already will be offset due to the traps that are in their inventory.
Once the Frame is highlighted on the top screen and the God/Ability is highlighted on the bottom one, push the "A" button. This will bring up two dialogue screens. One gives the Yes/No option for depositing and the other gives you the option to Equip/Drop/Sort. If you merely push the "A" button again, it will deposit the Frame as well as deposit the God/Ability. This means the God/Ability will be equipped with nothing else. It will be the lone item in your inventory, save for the single meseta. Back out of all windows. Make sure not to unequip the God/Ability. If you check your item window again, you will see it truly is still equipped. Quit and save your game.
The next step is the longest to perform, but by far the easiest. Start a new offline game and allow your character to load, then quit and save. Each time you do this, all stats but your ATA will go up by 20. ATA only goes up by 2 at a time. You can check your stats at any time after your character loads. When you finally enter the game and all of your stats are at their maximum, quit and save one final time, then start another game and unequip the God/Ability. Your stats will remain at their maximum. No mags, accessories or anything else is needed. This will take forever for ATA so you can always equip a God/Arm whenever the others are maxed.

*Credited To Halla