We have inspected your PS4 system. There are problems with major components on the motherboard which cannot be repaired. These parts have been physically damaged by inexperienced previous internal tampering. The motherboard needs to be replaced along with the DVD drive. The way that Sony designed the system, they need to be replaced as a set since the DVD drive is ‘keyed’ to the motherboard. Due to the high cost of the replacement parts set, which would need to come from a replacement working system, these parts are priced higher than a replacement unit. Due to the demand and high priced replacement parts, we can provide a few options to complete the order. We can provide PS4 console replacements for $289 with the damaged trade in as well as we have PS3 models in stock which start at $149 with the damaged trade in and include free shipping as well as waive any inspection and estimate fees required by the order. We can also scrap the damaged, beyond cost effective repair option system, and purchase the unit for scrap parts for $42 and close the order if you would prefer. As a final option, we can offer the return of the unit which has significant damage for the return, extended diagnostics, and inspection fee of $36.95. Please checkout to proceed with the return of the unit or respond for the buyout or trade in options.