After trying to revert my PS4 to an older firmware, I've been getting the 3 beeps. I tried desoldering every wire, resoldering the syscon chip pins a few times (I broke them and had to chip away until I got to the trace), rewrote NOR and SYSCON back to their original dumps (checked hashes as well and theyre fine), and all of those steps multiple times.
I tried turning on the PS4 using a disc, and plugged in only blu ray drive and power, as well as hdmi, but it always gives the 3 beeps. I've heard that it could be a NOR issue but I was able to write and read to it. I had some issues writing to the NOR, like getting write timeout or buffer timeour, but after changing the USB port I was able to write on it and checked hash as well. Only things I would say I did with resistors is I accidentally put solder on them but I took it away or wicked it away.
I was thinking to just buy a blank syscon chip and also try replacing the nor but I don't know where to get those and how to program them. I have a hot air station already if thats important.
I tried using UART to see errors, but it shows like a normal boot up log and stops at cd0 when the 3 beeps start. I could maybe send a log here if it helps or if someone else knows a program and/or what to look for that would be helpful.
I'm going to try writing the syscon and nor chip again but I'm not seeing success any time soon. Anyone know what could've went wrong?
I tried turning on the PS4 using a disc, and plugged in only blu ray drive and power, as well as hdmi, but it always gives the 3 beeps. I've heard that it could be a NOR issue but I was able to write and read to it. I had some issues writing to the NOR, like getting write timeout or buffer timeour, but after changing the USB port I was able to write on it and checked hash as well. Only things I would say I did with resistors is I accidentally put solder on them but I took it away or wicked it away.
I was thinking to just buy a blank syscon chip and also try replacing the nor but I don't know where to get those and how to program them. I have a hot air station already if thats important.
I tried using UART to see errors, but it shows like a normal boot up log and stops at cd0 when the 3 beeps start. I could maybe send a log here if it helps or if someone else knows a program and/or what to look for that would be helpful.
I'm going to try writing the syscon and nor chip again but I'm not seeing success any time soon. Anyone know what could've went wrong?