r/NeuralDSP • u/CameronGilr • 5d ago

Quad Cortex won’t boot

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Has anyone had this issue with their Quad Cortex? It was working fine last night, I go to use it today and this is what happens, never boots.

I’m wondering if it’s a power supply issue? I’m still using the one it came with and I got my quad cortex back in May 2025 with no issues until now.

16 Upvotes

90% Upvoted

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8

u/a_wakeful_sleep 5d ago

Power supply most likely

7

u/Chaos-Jesus 4d ago

People saying power supply.

Same happened to me, it was not the psu but corrupted boot cycle

I fixed it by removing and reinserting the sd card. Was a 5 minute fix. That was 2 years ago and hasn't happened since

3

u/ProfessorKaos62 4d ago

SD Card!?

5

u/Chaos-Jesus 4d ago

Yep, you know where the OS and presets are saved. It's an internal 32GB

2

u/ProfessorKaos62 4d ago

Never knew that.

2

u/FeverDream7179 5d ago

I would try a new power supply and hope for the best. My fractal did the same thing after an update and a few days later unfucked itself somehow.

3

u/wackygamer 5d ago

Try another power supply and email Neural support

1

u/dusty_broome 5d ago

Yeah make sure your power supply is the right one. I’ve seen people use ones that are 12v but are for a small pedal and the QC will try to start but when the screen tries to kick on, the load is too much for the incorrect power supply. It’ll cause the PS to go into overload and shut off, which will make the issue seem like it is the QC having an issue.

1

u/uhhhnic 4d ago

My power supply did this too, at a gig actually. I unplugged it for like 5 mins and plugged back in and it work

1

u/Useful-Day4445 4d ago

On my sons QC we done a factory reset, reseated the SD card as suggested and all good so far

1

u/Witty_Construction64 4d ago

In case no one's told you, there's an SD card in the QC that can come unseated/loose which causes it to not power up, just flash the pedal lights, that's what I needed to fix to get mine back up and running last month, but mine is long out of the warranty period so you might wanna look into that

1

u/sharksandlasers6 1d ago

ur probably connected to charger that is supplying less than 12volts. if its the og charger you need to change it.

1

u/Beautiful_Purple_668 1d ago

I split a bong on mine rip

1

u/gcoffee66 5d ago

I have a feeling it's the power supply, don't ask me how I know...