We have inspected your 3DS XL unit. The unit is completely missing the hinge which will require replacement parts to complete the reassembly. The unit also has damage to the top screen electronics connection integrated into the main motherboard which needs to have the connector replaced to correct the damage found. We have had to reassemble most of the unit in order to ensure the motherboard can be repaired and the parts are all there. The unit also needs a complete reassembly. The total cost for replacing the hinge, internal plastic guide, motherboard connector replacement, complete correct assembly with return shipping is $92.95. That includes a 90 day warranty on the replacement parts and repair. As an alternative we can simply return back your unit to you and the initial assembly for testing, inspection, diagnostics and estimate fee is $34.95.