JaiCraB has posted info about two UART ports he found on the PS4 motherboard; UART0 and Mediacon (CXD90025G). These are standard 3.3V serial ports with RX, TX, GND wires and baud rate set at 115200 bps (8,N,1). The Mediacon accepts commands and hashes similar to the Syscon on PS3. In order to map out the valid commands JaiCraB coded software to brute force the port which verifies result responses. You can read the whole post here (Google translated from Spanish). Pretty daring approach considering we don't know what any randomly found commands actually do, I suggest having some flash backup before trying this if you care about the target PS4. http://www.eurasia.nu/modules.php?na...ticle&sid=3420
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