Exact model-family answer directory
OnePlus Open troubleshooting
OnePlus Open (CPH2551 and regional variants): onePlus tries a foldable; what owners run into; how to approach a fault; finding your model and software; screen and hinge care; charging, and a fix for each symptom below.
- OnePlus tries a foldableThe OnePlus Open is the company's first foldable, a book-style phone with a large inner screen and a cover screen. It is a premium phone with fast charging and a strong hinge.
OnePlus Open screen or touch input is not working correctly
Open record OnePlus · app crashingOnePlus Open app keeps crashing, freezing or will not open
Open record OnePlus · biometric unlockOnePlus Open biometric unlock is not working
Open record OnePlus · camera blurryOnePlus Open camera is blurry, shakes or will not focus
Open record OnePlus · callsOnePlus Open cannot make calls or send messages
Open record OnePlus · GPSOnePlus Open GPS or location is inaccurate
Open record OnePlus · no serviceOnePlus Open has no cellular service or data
Open record OnePlus · microphoneOnePlus Open microphone is quiet, muffled or not working
Open record OnePlus · notificationsOnePlus Open notifications are delayed or missing
Open record OnePlus · not syncingOnePlus Open photos, contacts, messages or account data will not sync
Open record OnePlus · update failedOnePlus Open software update will not download or install
Open record OnePlus · speakerOnePlus Open speaker is quiet, distorted or has no sound
Open record OnePlus · BluetoothOnePlus Open will not pair or stay connected over Bluetooth
Open recordConfirm the model first
Which units this covers, and how to tell yours is one of them
- Model numbers and patterns
- CPH2551 and regional variants
Published specification
What is true of this model and changes how you fix it
- Hardware — OnePlus specs page7.82-inch inner display + 6.31-inch cover display, both 120Hz LTPO, 4,805mAh dual-cell battery, 16GB RAM, Snapdragon 8 Gen 2, 512GB/1TB storage, 67W SUPERVOOC wired charging.
- Type — book-style FOLDABLE (crease normal)OnePlus's book foldable — cover screen plus a large inner folding screen, with a notably subtle crease but still a normal bend line, not a defect. OxygenOS over Android with foldable multitasking (Open Canvas).
- Inner screen careSoft-topped inner OLED — no hard styluses, no pressing hard, no forcing objects into the fold. Keep grit out of the hinge; check its IP rating before water.
- SUPERVOOC fast chargingFast wired SUPERVOOC charging with the OnePlus charger + cable. eSIM support varies by region.
- What owners run intoReports include an inner screen crease, a hinge that needs care and a camera that stalls.
- How to approach a faultKeep dust out of the hinge and update the software.
- Finding your model and softwareSettings, About device shows the model and OxygenOS version. OnePlus updates arrive periodically, so check Software update.
- Screen and hinge careAvoid pressing the inner screen with a sharp object, and keep dust away from the hinge. A faint crease is normal.
- ChargingThe Open supports fast wired charging with OnePlus's own adapter. A third-party charger works but more slowly.
- Charging the OpenThe Open supports fast wired charging with OnePlus's adapter. If it charges slowly, check the cable, the adapter and the temperature. The phone slows charging when hot, so take off the case. A cheap cable may not carry the full current.
- Software and supportOnePlus updates arrive in stages, so check Software update and install them when offered. For problems after an update, clear the cache in Recovery and report the issue in the OnePlus community, which often has a workaround. Back up before a major update.
Where these figures were read. oneplus.com/us/open/specs (OnePlus Open Specs)
Manufacturer support for this product line. OnePlus Support — Support center. Official OnePlus manuals, software, repair and troubleshooting support.
Also read for this model. OnePlus Support — OnePlus Support.
Exact questions
Questions that only have an answer for the OnePlus Open
Is the crease normal on my OnePlus Open, and can I use a stylus?+
Yes, a center crease is normal on any book foldable — the OnePlus Open's is unusually subtle, but the inner screen still bends at the hinge, so a faint crease is expected, not a defect. Do not use a hard stylus or press hard on the soft inner screen, do not remove its factory inner screen protector, and keep debris out of the hinge. A spreading line or lifting screen would indicate damage rather than the normal crease.
How big is the inner display?+
7.8 inches.
Does it have a cover screen?+
Yes, 6.3 inches.
Is the crease normal?+
Yes.
Does a third-party charger work?+
Yes, more slowly.