PS5 EDM-033 UART 80810001 Beep 1 second Ligth

[Egidio85]

Hi everyone, I have a ps5 EDM-033 that beeps, blue light for 1 second and turns off.

reading the error codes via uart gives the following code:

80810001 General power failure (periphery, GDDR6, APU, data line shorted)

checking the card I didn't find any shorts, Boot sequence is quite right 325 mA dropping to 9 mA.

Using the thermal camera I can see the SSD controller and South bridge getting warm.

if I press the power button the RAM also heats up, the processor doesn't seem to. in fact if I go to measure I don't have +1v CORE output.

any advice on what i can check ?

thanks in advance

[stormanimal83]

hi there...
have u checked the APU for cracks at it´s corners? first thing to do before puttin´too much work on it.... not a fairly common symptom/problem u have there...
i´m watching a lot of repair videos of different youtuber´s and i can´t remember to read that error message before..... toltecmerc, thecoder (founder/inventer ueart PS5), joeydoestech....

[Nelson Rodriguez]

I have the same error code, same motherboard. I can also get it to boot if I attach a ch341a clip to the bios / nor and read it's contents and save the file to my desktop. It boots to a white light after that. The next day it will go back to a blue light and powers off. I attached the clip again to the bios and deleted it's contents. I downloaded a fresh copy of the bios / nor for 1215A. Used thecod3rs nor modifier to change the serial number to match mine. Wrote to the bios / nor fine. It booted up and I did a reset to bring it back to defaults. Installed updates. Then I shutdown the console. The next day I tried to power it on and it went back to a blue light and powers off. I am thinking I need to replace the bios /nor chip. I already replaced the cmos battery.