Thank you. I tested this dump as well, but unfortunately the WiFi still does not appear and the same issue remains.
After the PlayStation logo, the screen goes black exactly like before.
Most EDM-040 boards come with the J20H104 and use only a...
Which firmware version was the update you performed?
What is your diode mode and resistance readings on pin 13 (CEC) at the HDMI port?
The powerlines for USB, HDMI are switched on by southbridge and the controll and data lines from the WiFi...
Thank you for following up and replying every time.
I flashed the BIOS using both dumps you attached, but the WiFi network still does not appear.
Also, I replaced the HDMI port, but the issue is still the same.
I measured Pin 13 on the HDMI...
Attached is your dump. I corrected the position and the CFI number and the other WiFi related MACs.
But I don't think it will change something. I would try the second dump without modifying it and see if the behavior of the WiFi is different...
After changing the board serial and matching the number on the motherboard with the BIOS dump, and also updating the number on the WiFi/BT module:
Now all USB Type-C ports are detected and working, and the console updated successfully. However...
It is possible that the NOR data isn't matching the WiFi module. I had some cases where after changing the NOR data the WiFi wasn't showing the WiFi MAC and therefore wasn't detecting any APs.
For solving this issue, I would use another BIOS...
After replacing the WiFi/BT module, the console now displays an image, but it is unstable and flickering.
Also, only one of the front USB ports is working — the other front port is not working, and the rear USB port is also not functioning...
I checked all the resistances around the HDMI IC, and they are all correct and match exactly the reference image I will attach.
After that, I thoroughly cleaned the surrounding area. The console then powered on, and the PlayStation logo appeared...
This are images for another board but should help.
The 1.3V at your HDMI pin 13 are too low. The question is, does the cap or one of the both diods are pulling the line down or is the HDMI chip itself bad.
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Hi,
The console originally had a minor issue, but unfortunately a technician caused multiple short circuits in different areas of the board.
At this point, I believe the problem has been mostly narrowed down.
Based on the image you provided...
What is the story of the console? It is unlikely that there are multiple different issues, unless liquid damaged/cockroach infested/training board for soldering.
The error C0810303 = HDMI IC problem/data line short circuit/power failure
Sequence...
I replaced the WiFi chip with J20H100, and now I’m getting a new error. The tool reports an HDMI IC problem or data line short / power failure. I checked the HDMI IC and there is no short on it.
On the power supply, the board initially draws...