PS5 HDMI port keeps failing after replacement — what am I missing?

Check the retimer chip and the caps around the port — we've had two that looked like bad ports but were actually damaged retimers from customers yanking cables. Also stress-test with a wiggle test before you close the ticket; intermittent joints show up fast.

It sounds like you might be dealing with more than just the HDMI port itself. Have you checked the surrounding components for any signs of damage? Sometimes, when a port fails, it can also affect adjacent capacitors or even the IC responsible for the HDMI signal. I recommend using a multimeter to check for any shorts around the area. Additionally, ensure that the replacement ports are from a reliable supplier; counterfeit parts can often lead to issues like this. It might also be worth trying a different brand or batch to see if that makes a difference.

Have you tried performing a thorough thermal test after the HDMI port replacement? Overheating can lead to intermittent failures that might not show immediately. Use a thermal camera to observe the board under load; hot spots may indicate a failing component. Also, ensure that all grounding points are solid. A poor ground can lead to signal integrity issues. Lastly, it might be a good idea to document any patterns with these failures—like whether they happen more frequently with certain console batches or models, which could help isolate the underlying issue.

When dealing with HDMI issues, it's also crucial to examine the power supply circuit. Insufficient power to the HDMI chip can cause signal transmission failures. Check the voltage levels on the relevant pins to ensure they meet specifications. Additionally, ensure that the HDMI cable and connectors you're using are in good condition. Sometimes, customer reports of 'no signal' can stem from a faulty cable rather than the console itself. Lastly, consider the possibility of grounding issues on the board, which can also lead to similar symptoms.

Have you considered the soldering technique? Sometimes, even with low melt solder, excessive heat can damage nearby components. Try using a hot air rework station to ensure an even heat distribution while soldering the HDMI port. Make sure you’re not overheating the pads or traces, which could lead to intermittent connections. If you haven't already, I suggest inspecting the PCB for microfractures or other issues that can occur during the desoldering process. A good inspection under a microscope can reveal hidden damage.