We have inspected your 3DS unit. When we received the unit, the main screws were stripped and damaged due to previous tampering prior to our receipt. Due to the situation, we had to drill out the screws which damaged the bottom shell as well as the screws need to be replaced. We had to completely disassemble the machine in order to complete our diagnostics. There is damage to the Top LCD and is corresponding electrical components that run through the hinge which need to be replaced also. There is damage to the speaker and internal integrated cabling which also needs replacement. The In addition our technician noted that the buttons require cleaning and dust was found on the motherboard and screen. The dust need to be thoroughly cleaned out or you run the risk of shorting a component on the board. The total cost for replacing the damaged screws, replacement refurbished shell part, internal plastic guide,integrated ribbon cabling, and replacement speakers with ribbon cabling, cleaning the unit with return shipping is $89.95. 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 inspection and additional diagnostics fee and would require the screw replacements and bottom shell replacement so we could fully assemble the machine is $59.95.