So your OnePlus Open won't charge. You've plugged in the cable, maybe even tried a different one, and the screen stays stubbornly dark. It's a frustrating spot to be in, especially with a foldable that relies on its battery. The good news is, this is almost always something you can fix yourself without a trip to the repair shop.
Whether the phone is completely dead, the charging indicator won't show, or it's just charging incredibly slowly, we'll walk through the solutions. Let's start with the quickest fix and work our way through.
Force Restart Your OnePlus Open
This should always be your first move. A simple force restart can clear out a temporary software glitch that's preventing the phone from recognizing it's plugged in. It takes about ten seconds and solves more problems than you'd think.
For the OnePlus Open, the process is straightforward. Just press and hold the Power button on the right side for 10 seconds or more. Keep holding it until you feel a vibration or see the OnePlus logo appear on the screen.
Once it boots back up, plug it in again and check for the charging bolt icon in the status bar. I've seen this fix work when the phone seems totally lifeless.
Clean the USB-C Charging Port
This is the single most common culprit for any phone that won't charge, and the OnePlus Open is no exception. That USB-C port is a magnet for pocket lint, dust, and debris. Over time, it packs in so tightly that your cable can't make a proper connection.
Grab a bright light and take a close look inside the port. If you see any fuzz or dark material clogging it up, you've found your problem. Turn the phone off first for safety.
Use a wooden or plastic toothpick to gently scrape out the lint. Avoid metal tools like paperclips, as they can scratch or damage the delicate gold contacts inside. A can of compressed air, held upright and used in short bursts, can also help dislodge stubborn particles.
Use the Right Cable and Charger
The OnePlus Open supports incredibly fast 67W SUPERVOOC charging, but only with the right gear. If you're using a generic USB-C cable or a low-power charger from an old device, it might not work at all, or it will charge painfully slowly.
Always try the original 67W charger and red USB-C cable that came in the box first. If you've lost it, you need a replacement that explicitly supports OnePlus's SUPERVOOC or VOOC protocol. A standard USB-PD charger won't deliver the same speed and might not initiate a charge if the battery is completely dead.
Also, test a different wall outlet. Try plugging the charger directly into the wall instead of a power strip. Remove your phone case, too, especially if it's a thick, rugged one that might not let the cable plug in all the way.
Check for Software Updates
Sometimes, a bug in OxygenOS can interfere with the charging circuitry. OnePlus regularly releases updates that fix these kinds of issues. It's worth checking if you're running the latest software.
Go to Settings > About device > OxygenOS version and tap on the top banner to check for updates. If an update is available, download and install it. Make sure your phone has at least 30% battery or is plugged in during the update process.
If your phone won't turn on to check for updates, you might need to charge it for a longer period first, which we'll cover next.
Wait If the Battery Is Fully Drained
If you've let the battery run down to absolute zero, the OnePlus Open might not show any signs of life immediately when you plug it in. This is a safety feature of modern lithium-ion batteries. Don't panic.
Leave it connected to the official 67W wall charger for at least 30 minutes. Do not use a computer's USB port for this, as it doesn't provide enough power. After this waiting period, try the force restart again by holding the Power button.
You should eventually see a battery icon with a lightning bolt on the inner or outer display. If you see this, just let it continue charging until it has enough power to boot normally.
Check for Overheating
Your phone has built-in temperature protection. If the OnePlus Open gets too hot, maybe from leaving it in a sunny car or running intensive games, it will stop charging to prevent damage to the battery. This is a feature, not a bug.
If the phone feels warm to the touch, unplug it and let it cool down in a shaded, room-temperature spot. Avoid putting it in the fridge or in front of an AC vent, as rapid temperature changes can cause condensation.
Once it's cooled off, try charging it again. Also, be mindful of charging it on soft surfaces like a bed or couch, which can trap heat. A hard, flat surface like a nightstand is best.
Try Charging with the Phone Off
A background app or process could be causing a conflict that prevents charging. You can rule this out by turning the phone off completely. Press and hold the Power button, then tap "Power off" on the screen.
Once the device is fully shut down, plug in the charger. If it starts charging (you'll usually see a large battery icon on screen), then you know the issue is software-related within OxygenOS. This method also often results in slightly faster charging speeds since no system resources are being used.
Inspect for Physical Damage
This is especially important for a foldable. Carefully examine the USB-C port for any visible damage. Are the contacts bent or scratched? Does the cable wiggle excessively when plugged in, feeling loose? A damaged port will need professional repair.
Also, give the hinge area a look. While less likely to directly stop charging, significant debris buildup in the hinge or damage from a drop could potentially affect internal cables. Gently open and close the phone to see if the charging behavior changes.
Remember the specific tips for this device: avoid pressing the inner screen with fingernails or sharp objects, and clean the hinge regularly to prevent dust buildup that could work its way inside over time.
Perform a Factory Reset (Last Resort)
If all else fails, a deep software issue might be the cause. A factory reset will wipe your phone back to its original settings, so this is an absolute last resort. Make sure you've exhausted every other option first.
If you can still access the settings, go to Settings > Additional settings > Back up and reset > Erase all data (factory reset). You'll need to enter your passcode. Back up any important data first if possible.
If the phone won't turn on at all, you can try entering Recovery Mode. With the phone off, press and hold the Power and Volume Up buttons together until the Recovery Mode menu appears. Use the volume keys to navigate to "Wipe data and cache" and confirm with the power button.