All the OnePlus 9 Pro Issues: Abnormal Overheating, Battery Drain, Display & Charging


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There was a time when OnePlus was considered a hidden gem that outclassed most of its not-so-budget-friendly rivals. With repeated successes in the consumer marketplace, they eventually earned their title as the “Budget King”. Those times are in the past though; most of its devices now suffer from poor UI or numerous bugs that simply hinder any attempt at having a good experience. With the odds stacking up for their latest flagship model, it’s time for some introspection. Here’s our take on the OnePlus 9 Pro issues.

Having released earlier this March the OnePlus 9 Pro brings a lot of promises to the table. The Hasselblad cameras along with the Snapdragon 888 chipset make it quite the power-packed offering. It also has a 120Hz screen which along with the Hyper Touch feature makes it a challenging proposition when it comes to games.

Even so, I can’t help but feel that the numerous complaints that stand against it might be true after all. Maybe its just a OnePlus 8 Pro with new hardware, or is it?

What are the OnePlus 9 Pro issues?

Let’s go over these issues in an orderly manner, shall we? Each issue will be described along with evidence stating whether it’s a one-time incident or not. These have been raised at several forums, however, the company has yet not responded. Maybe weighing the frequency and nature of issues. OnePlus forums want more users to report OnePlus 9 Pro bugs along with logs so that bug hunters will be able to identify the root cause and work on a fix.

OnePlus 9 Pro Overheating

The OnePlus 9 Pro is most commonly recognized for its overheating issue which was otherwise justified by excessive daily usage. That wasn’t the case on ground level.

Unfortunately I keep finding nothing but bugs and issues with this device. I was trying to take a 4k 60fps video clip that overheated the phone so quickly that I only got about 1 minute of filming (Smooth UHD states it will record up to 5 minutes).

If it can’t handle more than 1 minute at 4k 60fps, you can probably forget 120fps. This was repeatable while in the stock gray stone case and naked without a case. No other apps running, the only load on the CPU was the camera.

Bibz32 (OnePlus Forum)

Several users claim to have experienced similar issues on their device. Even so, it might be worth noting that a handful got away without having face such problems.

I received my brand new OnePlus 9 Pro 12+256 today, from the beginning till now the phone is hot I killed all the applications and even when a single application is running it’s hot, I’m unsure if this is because of a software or a hardware issue My old OnePlus 6 is completely fine in regular tasks but this is getting hot for very basic tasks like even making a call.

Partythosh (ONeplus forum)

Some really unlucky users got the overheating warning while doing relatively simple tasks such as calling up, texting, or web-browsing. Most of the temperatures were around 20°C when the incidents occurred. Given that our bone-dry summers exceed 40°C, you could expect something worse.

For few people interested in heat benchmarks, who wish to push the cooling system to the max and see how much it thermal throttles during extreme loads check out the app.

OnePlus 9 Pro Battery drain

One doesn’t have to be a genius to put two and two together. Overheating a device is almost synonymous with battery drain. If you don’t take my word for it here’s some fresh evidence.

My phone is heating like anything. In standby mode also it is heating badly. also battery draining very fast also. Please help. Should i replace?

Is it a hardware issue or can it be rectified by software update?

Sudheesh_p.s (Oneplus forum)

Besides battery drain, charging times would also be a lot longer than usual. That kinda does defeat the purpose of getting a top of the line device with a 65W Warp Charge adapter.

OnePlus 9 Pro Connectivity Issues

Bluetooth earphones aren’t that complicated. They’ve been around for a while and have undergone numerous iterations over the past few years. So sappy Bluetooth audio performance is a bit of a downer when it comes to the OnePlus 9 Pro.

Subsequent updates however seemed to have partly resolved the issue from many users. The Oxygen OS for the Indian version and OxygenOS and for the European segment respectively.

Other problems are often dropped calls despite having full bars on the connectivity icon. And, if a user used their phone service somewhere with marginal connectivity, it gets even worse. The issue appears more related to the OxygenOS 11 update and many of the OnePlus flagship users are experiencing it of late.

OnePlus 9 Pro Botched Up Display Issue

The OnePlus 8 Pro had its own share of visual handicaps which often made viewing experiences quite uncomfortable. The black bar under the video along with the rapid shifts between refresh rates added up to a disappointing experience.

Fortunately, the OnePlus 9 Pro doesn’t suffer as much. It managed to pass the black crush test, the image retention test among others. This does do it a lot of favors but, it does have the Hyper Touch functionality. If memory serves well, the constant shift in Latency made gaming more of a chore. FPS or shooting games like PUBG and Call of Duty might suffer.

If the 9 Pro has got it right this time, maybe it isn’t much of a visual downer.

Good but tricky Cameras

All the OnePlus 9 Pro Issues: Abnormal Overheating, Battery Drain, Display & Charging

Hasselblad, det är trevligt. With such a brand handling the ocular department will the OnePlus outdo the competition? Yes, it will. It has managed to blow the Pixel 4a out of the water while easily standing up to much more premium devices. However, the unnecessary fuss made over the Pro model is a tad much.

While images are impressive, they tend to take in too much or not enough light when taking pictures especially Night shots.

They tend to switch on and off of their own will sometimes. The hand gestures are a little too sensitive and often lying it face up might trigger the camera app, which you’ll figure out a lot later.

OnePlus 9 Pro OS

One of the OnePlus 9 Pro issues would be its janky OS. The past offerings of two years worth of OS updates and three years of security patches have now dwindled.

The GPS calibration is terrible.

The Smart lock option for trusted voice activation completely disappeared from my phone for no apparent reason. The option in Google Settings to unlock with voice also vanished.

Sometimes neither my WIFI nor my data is working even though the status bar indicates that both are connected.

I’ve used unofficial custom ROMs on other phones that had far fewer bugs than Oxygen does. OnePlus needs to start investing a lot more money in their programmers. A phone that wants to be taken seriously as a premium device shouldn’t have so many problems with basic functions.


Most of the time an OS patch is released for older devices only after a considerable out-pour of disappointment from the users. This time OnePlus 9 Pro has been different.

The OEM has been proactive this time. It has rolled out OxygenOS update on 2nd April for OnePlus 9 and OnePlus 9 Pro smartphones in North America, India, and the European Union regions. One can expect improvements in camera performance, haptics in Call of Duty: Mobile and PUBG, user interface stability, Warp Charging System.

Overall, the OnePlus 9 Pro does have a lot going for it. Great cameras, a powerful processor, high refresh rates. But some of the aforementioned issues cannot justify the need for such a price tag. Had OnePlus ironed out these deficiencies they could’ve made a banger device.

That’s pretty much all there is on our end. Do you think there’s something we missed out on, do let us know in the comments? For more similar content visit us here.

Achyuth Nambiar
Achyuth Nambiar
Being a tech enthusiast and someone who loves to read, I try to combine the two into my latest attempt... blogging. A gaming PC though a Far Cry (pun intended) remains a distant dream.


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