u/Nooben2006

so i bought a ps4 ( model is CUH-1003A ) and it sounded like a fax machine when disc were inserted and ejected, it worked just fine and read games but it annoyed me so i opened it up and cleaned the disc drive ( disc drive model is KEM-860 )

after said cleaning the disc drive no longer took games, eject button does not work either.

all i did was take the disc drive out and cleaned the rubber rollers and brushed it for dust, i did not dismantle any of the parts.

i opened it up more ( carefully ) and i found a random small black spring stuck to the magnet in the disc drive, removed it and tried again, and still dead.

i have now checked every ribbon cable with a multimeter, inspected for damage and those are all fine, checked all fuses i could find and they are also all fine, also checked everything is connected properly and they all are.

the daughter board does have power, i checked with multimeter in various spots and found nothing wrong or missing, the chips on the daughter board do get warm when the console is powered on for a while.

the random spring i found seems to belong to the manual eject cogwheel, even after placing it back it still did not work, manually inserting and ejecting discs do work using said cogwheel on the side but the console does not read or react to the disc being inside fully.

i have checked the 3 switches on the back and they are also good and behave correctly, all plastic parts do what they are meant to do and no signs of weird behavior or damage.

there is no sound, or signs of life at all anywhere in the disc drive system.

i have spent so many hours on this, dismantled said disc drive 10+ times and tested it non stop, watched 7 or 8 videos about the disc drive, and read so many articles, guides and looked at so many pictures of the disc drive and console itself.

can someone please help me out?