Whether your using pre cut/modified shells, or original/OEM shells, trimming and cutting the shell is required. This also applies to whether your using an IPS backlight mod or keeping it original. 

If you are installing an AGS (GBA SP) display click here

If you are installing a modern IPS (funnyplaying or unbranded) click here.

If everything is functioning as expected, go ahead and complete the reassembly by replacing the rear screws. 

See our disassembly guide if you need further assistance here.

Learn the proper techniques for trimming and setting up pre-cut or modified shells with this comprehensive document. Whether you're working with an original or OEM shell, and whether you're implementing an IPS backlight mod or aiming to keep it original, 

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