My PS4 Pro suddenly desided to die on me. It is showing me the blod. Now, I have been doing a lot of testing an experimenting trying to figure out why, but I haven' t really found anything. I'll describe first what it exactly does and then what i tried.

The symptoms:

1. I plug in an HMDI and power cable
2. I press start on the console (my controllers are dead)
3. The PS4 Pro turns on with a blinking blue light and no display out.
4. Extra info: the fan spins up to a slow speed, the disk drive does eject and accept disks and turns them aswell and the HDD does spin to life
5. nothing else happens except it gets very hot to the touch above the psu (but imo this could also be cause the fan is barely spinning)
6. i turned it back of since there was no change for 25 min
7. I tried safe mode by pressing the powerbutton longer from the power off state
8. it first beeps once and turns on with the same blod, while i am still holding the powerbutton
9. after 11 or so seconds it beeps again and it turns back off. so no safe mode possible

The things i already tried:

• safe mode
• replacing the cr2032 coin cel bios battery
• different methodes of safe mode and wired controller combinations
• hdd removal and replacement
• differen power and hdmi cables
• different tv and monitor
• opening everything up for cleaning and checkup
• checking on bad capacitors or resistors, checking fuses
• checking for rust or other fysical problems
• checking for shorts on the power rails of the main motherboard
• checking the output voltages of the psu, which are 11.8V on the 2 big metal pins and 4.8V, 4.6V and a feedback 3.2V one on the little cable connector
• connecting a desktop 300W PSU to the 12V rail of the ps4 while keeping the 4.8 and 4.6v of the og psu

Whatever i try, it keeps doing the same thing. There is no change whats o ever. Also important to know, the blinking blue light stays on forever. It's not like the PS4 Pro turns off after a few seconds or minutes.

I think i have mentioned everything i tried but i might have forgot some, ill say those if i remember when someone commends.

But, my main question is the following. Since none of the results seem to indicate a specific component, like for a short on the 4.8V rail it is often the HDMI encode chip, i have no real next step available to check or test. Is it worthed to mangle the PSU wires to also use the 5V of the Deskop PSU and completely remove the PS4 PSU? Should i try to buy a new PSU for it or does someone think its not enough evidence that the psu is not the culprit? Should i just go for a second hand PS4 Pro? Most PS4 Pro's in my region go for about 180 euro's if i recall correctly, and a new PSU for 65-90 euro's. If someone says it needs to be reflowed I'd probs buy a second hand one cause the reflowing in my region is like 135 euro's without the probably mandetory diagnose of 90 euro's. I can not do a reflow myself, cause i dont have the correct equipment. Any help is appriciated!

PS.: for clarification purposes: yes, i opened the PSU and all other components to test them. Do not worry, I am an electronics engineer, i know what i am doing and am comfortable to do so. It's just that i do not know the PS4 Pro and it symptoms since i mainly design electronics, not repair them. And the repairs i do do are usually Desktop, laptops or household electronics. Also i apologise for  my bad English, its not my native language.

Hello!

This answer is an extension of the comments on the answer of @dan0 .

So, I have some extra questions related to the reflowing. I'll write down my plan followed with the questions.

I am in possession of a flir camera, an hairdryer and an hot-air-soldering station. My plan was to first heat the complete motherboard with the hairdryer to make the complete board equal in temperature. Theni would proceed with the soldering station with the biggest modus (no extra tip) of 1.3 cm wide to make a looping movement over the APU and the RAM in a fluent and as consistent as possible movement. At least, that was my plan. However, there are a few things hope to get information on regarding this:

• How am I supposed to do both the APU and RAM? They seem to be on the oposit sides of the motherboard. If I heat one side, won't the other side also get reflowed in the worst way possible, since it's upside down? Afterall, this is the motherboard with the red circle around what i presume is the RAM:

• How hot does the motherboard need to be with the hairdryer? I can measure this with the flir camera.
• How hot do I need to set the hot air soldering station?
• How fast does the hot air station need to blow: 50%, 20%, 80%, ...?
• Will this hairdryer and hot air station combination work instead of the hot air gun in the PS3 video?
• Does the APU and RAM need to be a certain temp or do I just need to set the hot air station to a certain temp and keep it on the APU for a certain total amount of time? And in either case, what are the amounts?

I like to have a lot of information so I wont break it unnecessarily. There are a lot of questions since I have never done a reflow,

Thanks already for all the info!

⟐ Commented 9월 01, 2026 at 23:42 GMT-7

⟐ Answered 8월 30, 2026 at 22:05 GMT-7

Standby voltages are also present. 3.3v present on the power / eject motherboard pins where the ribbon cables connect. But the darn thing still wont power on of give any sign of life. South-bridge is not shorted.

Only two cap's I found shorted ( I think they are caps from the looks) from what is looks like are the APU's 6-phase power stages. Circled red on the picture.

Also, the circled in green inductors/coils I think, are all grounded to short on both sides. Not sure if thats how it should be...

Anyone able to advise how to proceed what may be the cause or how to proceed next? I have no thermal camera nor a bench PSU to inject voltage. :(

Thank you.

⟐ Commented 8월 18, 2026 at 15:11 GMT-7

⟐ Commented 8월 09, 2026 at 17:01 GMT-7

⟐ Answer edited 7월 17, 2026 at 10:40 GMT-7

Translation:

My PS4 isn't reading the disc.
When I insert the disc, a gray disc icon appears on the screen, and it says "Unrecognized Disc."

⟐ Answer accepted 7월 13, 2026 at 23:30 GMT-7

The original cable has this printed on it:

SUMITOMO-G [RU] AWM 2896 80C VW-1 -F-

I cannot find a ribbon cable that is the exact same. Can I instead buy ++this one for example++.

The image of my broken ribbon cable:

⟐ Answered 7월 11, 2026 at 7:51 GMT-7

The motherboard model is an NVG-004.

It was suggested I try taking components from a PS4 slim, but the slim model’s components are larger than these, and I have yet to get access to a junk PS4 pro board.

Any help would be greatly appreciated!

⟐ Commented 6월 30, 2026 at 3:29 GMT-7

⟐ Commented 6월 28, 2026 at 0:11 GMT-7

Translation:

Problems reinstalling system software

How to reinstall PS4 system software

⟐ Answered 5월 02, 2026 at 15:51 GMT-7

Edit: i should have clarified this before but it does actually seem to enter safe mode because the light turns white.

⟐ Commented 4월 16, 2026 at 4:02 GMT-7

⟐ Answered 4월 15, 2026 at 6:58 GMT-7

Observations:

• He took it apart with a disc in the drive
• When powered up, it would not eject the disc, so we had to manually eject the disc
• When he removed the ribbon cables, he just pulled them out (didn't release the latch on the large drive ribbon cable)
• When I took the drive apart (he did not take the drive apart previously) I noticed it appears to be missing a white plastic piece from the top metal plate next to the manual eject screw based on comparing it with pictures online
  • If I put a disc in until I meet resistance then use the manual eject to pull it in, it pulls in fine and everything appears to be functioning, so maybe we're not missing that piece. No idea how it could be missing since we'd never had it apart before.
• When I press eject with no disc in, it beeps 3 times which I read means there is no disc, so it appears to know it's empty.
• When I try to insert a disc with the console off, it turns on, so it recognizes me trying to put in a disc.

What I've checked:

• Both fuses F6201 and F6202 on the motherboard have continuity with .2 ohms resistance max.
• All three ribbon cables have continuity from the motherboard pins to the daughter board pins, so ribbon cables appear to be fine.
• All the micro switches (3 that I can find) inside the drive are open when the pin is extended and closed when pushed in/arms are open to accept a disc.

⟐ Answered 4월 01, 2026 at 4:02 GMT-7

I have already tried:

1. Unplugging the console for over 20 minutes to perform a power cycle.

2. Attempting a "Disc Wake-up" by inserting a game disc (the drive does not take the disc).

3. Attempting to boot into Safe Mode by holding the power button (no response).

Given that it crashed multiple times before failing, is this likely a Power Supply Unit (PSU) failure, or could it be a more serious motherboard issue? Are there specific components or fuses I should test with a multimeter?

⟐ Answered 3월 25, 2026 at 15:29 GMT-7

• Left my PS4 Pro unplugged for about 2 months while I went back to my hometown
• When I plugged it back in, the console does absolutely nothing (no blue light, no beep)
• Normally it shows the blue light after a second, but now there’s no light at all
• If I put my ear near the PSU area, I can hear a very small click or faint electrical noise
• When plugging in the power cable, I can hear a small sound from the plug/PSU
• I already completely disassembled it and cleaned both the PSU and motherboard, only handheld turbo fan (low to medium dust blowing mode, not high pressure)
• No visible damage, no burnt marks, no bugs, nothing looks wrong
• I tried drying it with a fan before because the weather here is quite humid, just for sure
• The console still does nothing when pressing the power button,enject or use controller to turn on(no connection)
  
  -The console was working fine the last time I used it. I left it unplugged before going back to my hometown. Previously, the PSU had a coil whine issue but it still worked normally. The disc drive also made a loud noise on the first read, but it remained functional. I didn’t bring a multimeter with me when I returned because I didn’t expect this problem to happen. I also haven’t tried another PSU yet, but I plan to test one in the next few days. For now, I just want to understand what might have happened.
  

⟐ Commented 3월 11, 2026 at 3:18 GMT-7

⟐ Answered 3월 09, 2026 at 6:45 GMT-7

⟐ Answered 2월 08, 2026 at 9:30 GMT-7

Can someone help please?

⟐ Commented 1월 25, 2026 at 11:12 GMT-7

A couple of months ago, I tried to disassemble my PS4 pro and it didn't end well. Long story short, my PSU was a bit bent and I broke traces on the edges. I soldered it, but it didn't work - when I pressed "turn on" button, a blue light was emitted for a second and instantly turned off. Furthermore, PSU connector was torn off, so I had to solder it too. Recently, I bought a new PSU thinking it would make my console work. But no, nothing changed. Except, now it makes 4 short beeps after the second attempt to turn it on (I marked a place where the sound comes from). I'm clueless; it SHOULD work. Any advice will be greatly appreciated!⏎
⏎
https://vocaroo.com/1ed3ELEtnswf

Recording of 4 short beeps

⟐ Commented 1월 22, 2026 at 6:50 GMT-7

Thank you all.

⟐ Commented 1월 06, 2026 at 5:15 GMT-7