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. Specifically found that pin 19 (hot plug detect) and pin 14 ( no connection) were missing from the main motherboard, most likely from not using the correct method to remove the old port which damaged the main board connections. There are also three surface mount components which were missing from the system. They are very small in size and we found one which moved into another spot inside of the machine. We do understand that the port was incorrectly removed and repair attempts were done in a way which caused the parts to go missing as well as the damage to the main motherboard as a result. Due to the damage and missing parts, we had to replace the components to complete diagnostics to see if the repairs could be possible. Even with the parts replaced, the unit shows no options for repair based on previous damage to the unit. Please understand that if the machine had come to us with the original problem, without being damaged by third party before coming in, we would have repaired the unit with our standard processes. 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 $259 with the damaged trade in as well as we have PS3 models in stock which start at $129 with the damaged trade in and include 90 day warranty 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 close the order at no charge 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 which required replacement parts to proceed, and inspection fee of $49.95. Please checkout to proceed with the return of the unit or respond for the scrap or trade in options.