No Video/Signal, BLOD, sometimes works

So I installed the newest 5.0 update, it went well. The system was in rest mode all day long, got home and installed the update.

Booted into the PS4 menu, setup the system using my account etc. However it appears I got more issues.

Basically if the system fails to boot, as in I am getting the BLOD what helps is by me pushing down on the top of the unit with my hand for 5seconds. Then it typically boots up and instead of BLOD I get a WHITE light and see the screen on the tv. What is the cause of this?

Also, I picked up BF1 when I insert the disc it takes it, I can hear the drive working but then it says on the screen Unrecognized Disc.. I tried putting the system vertically etc but same error. I can hear the drive trying to read/jug away at it however it won't recognize the disc. At times it will read it and it won't even give me the unrecognized disc tile at all.

Any help is greatly appreciated!

Do you have a picture of what you see on the screen?

Hey I haven't been getting my notifications so I checked to see if you replied and reread what you said about pressing down on the top. towards the right middle is where the CPU is. there's a possibility that if it was taken apart before the heat sink cover wasn't properly relayed or tightened that would explain the BLOD but don't think it has anything to do with spitting out disks. LMK what's going on and any pics if possible when you have an update man!

Thanks for your help!

The unit was never taken apart, I could tell once I opened it that nothing was tampered with. I should reword my phrases from last night.

When I put the disc in, it takes it and starts to read it. I hear the drive working and I see the small disc icon in the top right corner flashing. 1minute of that and then it simply says "Unrecognized Disc" on the dynamic tile. I tried a few times no luck. The disc stays in the drive and ejects normally. I did pull the optical drive out last night again and cleaned the laser it with Rubbing Alcohol 70% - will report back when I get home with the results, as I didnt have time to put it back together last night. I will also try a DVD movie and see if it reads that.

Now in regards to the BLOD, basically if I have the system off apply some pressure on the top with my hands the system boots in. I put 1 washer under each peg of that CPU/GPU brace as i read about it online and not sure if this is helping or not. Maybe I should add another washer? I am assuming just metal washers (very thin/flat).

You're assuming right on the washers. I usually still add a little thermal paste as the older model does have some issues with that.

Yeah let's see what happens with the drive once you put it back together tonight!

Hi Sebastian, yes I did fix the unit and also another 3-4 with the same issue. Flipped quite a few PS4s over the last few years. What is going on is the GPU (graphics card) is overheating. Dismantle the unit, replace the thermal compound. There is a clamp style holder that applies pressure for the heatsink on the GPU, you need to add 4 small washers (one for each leg) and put everything back together. Depending on the style of washers you may need to add two or more. It becomes trial and error until you get it just right. Once you do, the unit will boot. I used that playstation above for well over a year heavily and not a single hiccup. Once the unit is dismantled use the chance to clean up the inside of dust etc.