- Gaming and consoles
- PlayStation 4
CE-37857-0
PlayStation CE-37857-0 on PS4: USB storage not recognised
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
The PS4 cannot recognise the USB storage. Connect the device or, if it is already connected, disconnect it with Stop Using Extended Storage and reconnect it securely. Check it is FAT or exFAT formatted.
Safety first
Stop and check this first
- Do not disconnect the storage while the PS4 shuts down or enters rest mode; use Stop Using Extended Storage.
Safe checks you can perform
- Connect the device directly and securely
- Stop using extended storage and reconnect
- Check the FAT or exFAT format
Leave these tasks to a qualified professional
- Do not attempt this professional task: PlayStation Support
- Do not attempt this professional task: PlayStation Repairs diagnostic tool
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
PlayStation Support
What they doIf no compatible device connected directly works, PlayStation Support reviews the case with code CE-37857-0.
They must show youwhich check they ran.
In writingcase number and answer.
PlayStation Repairs diagnostic tool
What they doIf several compatible devices fail on every port, the PlayStation Repairs diagnosis assesses whether the console needs a check.
They must show youhow the diagnosis ended.
In writingrequest number and date.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Connect the device directly and securely
- Who:
- you.
- How:
- connect the storage device straight to a PS4 USB port, with no hub, and make sure it goes all the way in.
- Result that matters:
- whether the console recognises it.
- If it does:
- the connection or the hub was the cause.
- If not:
- remove it safely and reconnect it.
- Evidence to keep:
- Port used and whether there was a hub before.
Evidence: PS4 error code CE-37857-0 (PlayStation Support) · USB extended storage on PS4 consoles
Stop using extended storage and reconnect
- Who:
- you.
- How:
- in the quick menu choose Sound/Devices > Stop Using Extended Storage, disconnect the device and reconnect it securely.
- Result that matters:
- the console detects it on reconnection.
- If it does:
- the earlier connection had gone wrong.
- If not:
- check the device's format.
- Evidence to keep:
- Time and result of the attempt.
Evidence: PS4 error code CE-37857-0 (PlayStation Support)
Check the FAT or exFAT format
- Who:
- you, with a PC if needed.
- How:
- check on a computer which format the device has. Sony says it must be FAT or exFAT.
- Result that matters:
- the format is FAT or exFAT.
- If it is not:
- that is the reason; changing the format erases the contents.
- If it already is and is still not recognised:
- see Sony's extended storage guide or try another device.
- Evidence to keep:
- Format seen and device capacity.
Formatting erases everything on the device. Copy what you need first.
Evidence: PS4 error code CE-37857-0 (PlayStation Support)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Gaming and consoles
- Brand
- PlayStation
- Product type
- PlayStation 4
Known code variants
- cannot recognise the USB storage CE-37857-0
- código de error CE-37857-0 PS4
- error CE-37857-0 PlayStation 4
- no reconoce el almacenamiento USB CE-37857-0
- PlayStation 4 CE-37857-0
- PlayStation 4 error code CE-37857-0
- PlayStation CE-37857-0
- PlayStation error CE-37857-0
- PS4 CE-37857-0
- PS4 error CE-37857-0
What it means
Sony links CE-37857-0 to the PS4 not recognising the USB storage. It checks the physical connection (device missing or loose), the correct removal with Stop Using Extended Storage and the format, which must be FAT or exFAT. The extended storage guide adds that USB hubs are not supported. The code does not prove the console's USB port or the device is faulty.
Warnings and stop conditions
- Lowsource verified
Do not disconnect the storage while the PS4 shuts down or enters rest mode; use Stop Using Extended Storage.
Evidence: USB extended storage on PS4 consoles
Symptoms and causes
Probable causes · in order
- Device disconnected or poorly connectedCommon
Confirmed if connecting it securely, or removing and refitting it, makes the console recognise it.
Evidence: PS4 error code CE-37857-0 (PlayStation Support)
- Unsupported formatPossible
If the device is not FAT or exFAT, the console will not recognise it even when connected properly.
Evidence: PS4 error code CE-37857-0 (PlayStation Support)
- Connection through a USB hubPossible
Sony's guide says hubs are not supported. If it works connected directly, the hub was the cause.
Evidence: USB extended storage on PS4 consoles
Virtual technician
Does CE-37857-0 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
How to use Safe Mode on PS5 consoles and PS4 consoles
Sony Interactive Entertainment (playstation.com/en-us) · 2026 · official_doc
- 2
PS4 error code CE-37857-0 (PlayStation Support)
Sony Interactive Entertainment (playstation.com/en-us) · 2026 · official_doc
- 3
USB extended storage on PS4 consoles
Sony Interactive Entertainment (playstation.com/en-us) · 2026 · official_doc
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