OnePlus 7 & 7T series is facing data decryption failure after the upgrade to Android 11.

https://www.gizchina.com/2020/12/17/oneplus-7-7t-series-are-facing-some-problems-with-the-android-11-update/

OnePlus will not be releasing Android 11 for the 7/7T series in December like originally promised.
https://www.reddit.com/r/Android/comments/kewiyk/oneplus_will_not_be_releasing_android_11_for_the/

👍 we appreciate the stuff one plus does for its communities.

https://www.gizmochina.com/2021/01/21/oneplus-oppo-rd-merges-software-features-unaffected/

*2018 OnePlus* - "We are an independent company"

"Fingerprint Sensor Hardware not available"

https://www.91mobiles.com/hub/oneplus-9-pro-two-year-warranty-not-in-india/

Hey let's not give 2 year warranty to our biggest market (India) and the second biggest market (US)

The OnePlus 9 and 9 Pro have different SKUs again for the North American unlocked and carrier variants, European and Indian models. The North American variant of the 9 has CDMA for Verizon but does not support mmWave, the T-Mobile variant has IP68 water and dust resistance while the unlocked models do not and the Indian variant has a whopping two 5G bands.

The OnePlus 9 also does not have OIS while the cheaper 8T (and by extension the 9R do), they also downgraded the frame on the 9 to plastic. Cameras don't seem great according to reviewers either.

Edit: The Indian version of the OnePlus 9 also lacks wireless charging.

Let's also talk about the 9R, it's a rebranded 8T with a Snapdragon 870 and a plastic back. Everything else including the cameras and the band support (one 5G band) is identical.

The Verge about the 9 Pro

https://www.theverge.com/22344840/oneplus-9-pro-review-price-camera-screen-specs

"The camera system is good, but it can’t quite match the quality you get from an iPhone 12 Pro Max or Samsung Galaxy S21 Ultra. It handles a variety of conditions quite well, but sometimes I just had to take an extra beat to compose my shot. It let me better judge what the viewfinder was showing and, honestly, gave me time to try the shot again."

"I like the colors the 9 Pro produces, but sometimes it just tries too hard and whiffs. Similarly, OnePlus seems to want to bring a little of that Pixel contrast magic to bear but instead just oversharpens. And lightening shadows is sometimes laudable, but not when it adds completely unnecessary and distracting image noise."

"I loved using it (ultrawide camera) right up until it went haywire with sharpening."

"The telephoto camera is 3.3x, and it’s not anything special at that zoom level. Beyond it, digital zoom is kind of a mess. It gets pantsed by the S21 Ultra with its periscope-style lens. There’s also a monochrome camera that serves only as a helper for the rest of the system, but I suspect it’s not doing anything especially important. OnePlus did drop the gimmicky and pointless “color filter” camera from last year’s 8 Pro this time around. It will probably drop the monochrome camera next year, if I had to guess.

OnePlus’ software-focused Nightscape mode works really well for capturing nighttime shots, although to my tastes, it over-brightens the image. Portrait mode is a mixed bag; heads often look artificially cut out from the blurry background. Again, I can get good shots, but portrait mode was often one of those situations where I needed to try the shot a second time. The selfie camera is passable in good light but falls down fast in the dark.

Unfortunately, video is equally messy. The OnePlus 9 Pro will let you shoot up to 8K 30 or 4K 120, but neither looked good. In fact, regular old 4K 30 has that overprocessed and oversharpened look you see so often from smartphones. The big new feature is improved HDR for backlit subjects, but the effect is minimal at best."

AP's review- the heading itself tells a lot "OnePlus 9 Pro review: An upgrade today isn't worth an update tomorrow; One step forward, two security patches back"

https://www.androidpolice.com/2021/03/23/oneplus-9-pro-review/

"The fingerprint sensor in the 9 Pro does have one big flaw: It's way too far down on the screen, close to the bottom edge. It's not ergonomic, but it's also just an awkward spot to hit accurately. Some long-term OnePlus users have also had issues with burn-in from the optical sensor's display-based illumination."

Already has a lot of bugs in the software
"Poor Bluetooth audio performance, with frequent disconnections (using OnePlus' own Buds) even in uncongested areas.
Issues with dark themes in certain apps like Slack.
Weird stutters or green flashes watching videos in some apps.
Some missed calls with full bars — it just wouldn't ring.
More frequently dropped calls in areas with a marginal signal.
The camera would sometimes randomly open when the phone was set on a surface or drop me into a "tap to launch camera" screen it shows when the camera is idle for too long.
Content declaring wide-color support dramatically adjusts white point and display temperature from your current configuration — distracting in apps like YouTube."

"OnePlus also hasn't kept up with software as well as it should. Long ago, its two years of OS updates and three years of security patches promise was competitive, but now it's near the bottom of what you can expect for a flagship phone. The company is slow to roll out major OS updates and tends to ignore its older devices (when it isn't just releasing buggy software on them). While I'm confident that OnePlus will give the 9 Pro the attention it deserves in 2021, I'm more concerned about how it will fare in 2022 or 2023 when the company has moved on to newer models"

"General performance was quite good, as you'd expect for the latest Snapdragon 888, though I did have one weird hiccup: Something about touch latency felt odd or a little laggy at times, especially while typing fast in Gboard."

"Furthermore, the wireless charger is kind of loud with the fan on, and the fan stays on constantly while the phone is docked, even once it's fully charged, unless you kick things over into "bedtime mode" for lower-power fan-free operation."

"A camera is never blanket good or bad, and outside the unfortunately strong lens flare, I actually think the 9 Pro can do a good job in low-light. But my examples still show the sorts of inconsistencies that indicate unpredictable and unreliable performance. In short: The OnePlus 9 Pro doesn't usually leave me saying "wow" on a positive note after shooting a photo, as the Pixel so frequently can."

"OnePlus has a long-standing reputation for wormy, muddy processing that tends to destroy the texture of faces or fine details, and so far, that's still an issue with the 9 Pro. It's not a small problem, and for some of us at Android Police, that makes this phone a $1,000 non-starter. While it does do a good job with strong contrasting edges, fine low-contrast details tend to get ruined. So the edges of objects or details like tree branches can come out nice, but it still manages to destroy the finer more subtle texture in scenes. On top of that, the telephoto is regularly washed out and outright bad. And it's upsetting, because I really do like some of the photos I took with the 9 Pro, but I just can't rely on it to do a good job every time like I can with a Pixel. "

"The benefits of this Hasselblad partnership are overstated, and the quality of results remain OnePlus-inconsistent. If I had to choose a phone based on photo quality today, it would be a cheaper Pixel or a more expensive Galaxy S21 Ultra."

AP review conclusion

"But I still hesitate to recommend it to everyone outright, especially given the nearly $1,000 price. Even if you like the camera performance (which still has its objective drawbacks and the company's usual muddy processing) OnePlus still has one very big problem right now: Updates. It just isn't taking software seriously. The Android 10 rollout for the OnePlus 6 was botched last year, and this year the OnePlus 7 series had similar issues on top of being even later. I have zero faith that OnePlus will gracefully handle the Android 12 update for the 8 series next year, and that's ignoring the fact that it's base update policy simply isn't competitive for 2021. We're keeping our phones longer and longer, and OnePlus's middling software commitment does not justify the 9 Pro's nearly $1,000 price. If I was buying an Android smartphone in the US in this range today, for my money, I'd probably opt for a Galaxy S21+ or wait for a sale on the S21 Ultra."

XDA's review of the 9 Pro

https://www.xda-developers.com/oneplus-9-pro-review/

"The third camera is an 8MP telephoto camera that offers 3.3X optical zoom and is stabilized with OIS. The zoom setup on OnePlus phones hasn’t seen many improvements since the OnePlus 7 Pro, but the native optical zoom plus super resolution techniques combine to produce sharp photos under 5X zoom. Then there’s a 2MP monochrome lens that is only useful for improving black and white photos. This was probably added so OnePlus could say the OnePlus 9 Pro has a “quad camera” setup if I’m being honest. Last but not least, selfies are captured by the phone’s 16MP Sony IMX461 and its fixed-focus lens. These three cameras are serviceable but nothing to write home about"

"Generally, the main camera on the OnePlus 9 Pro will capture a ton of light but sacrifices some detail. Binned 12MP photos seem overly sharpened but not oversaturated, unlike previous generations. "

"Unfortunately, only the main camera fares well in low-lighting conditions, as images from the ultra wide-angle and especially the selfie camera came out soft and mushy."

"However, the OnePlus 9 Pro sometimes failed to properly expose for my face when trying to capture a sun-backlit selfie. In dim lighting conditions, the OnePlus 9 Pro aggressively exposes for any visible faces but, as a result, tends to sacrifice facial detail. Portrait mode for selfie photos has been hit or miss for me, with the algorithm failing a few times at capturing the contours of my ears (and thus blurring them out of the picture)."

"The bokeh effect is a bit soft in my opinion. I prefer an effect that mimics a much more shallow depth of field than OnePlus’ more conservative bokeh. There also seems to be a lot of skin smoothing being applied in post-processing in contrast to selfie photos."

"The telephoto camera on the OnePlus 9 Pro only produces 8MP images that are okay for zooming in to read text on faraway objects (but not too far). I’m overall disappointed by the telephoto camera, as images are often grainy, have a different color profile than images from the other rear cameras, and are too low-resolution to make cropping in any further useless. If 3.3X optical zoom photos can’t capture objects or animals that are pleasing to look at, then I don’t expect much from zoom levels past 3.3X.

The fourth camera’s a gimmick, so I didn’t bother taking any black and white photos. I also haven’t tested the new tilt-shift mode, a software feature that makes scenes appear smaller than they actually are by simulating the miniature effect of a tilt-shift lens.

Overall, I would say my impressions of the camera on the OnePlus 9 Pro are mixed. While the phone does take great shots from the main and ultra wide-angle cameras (the latter only in good lighting), I’m disappointed by the middling telephoto and selfie cameras."

"Nightscape videos are limited to 1080p but are recorded at 30fps and also appear jittery, so it’s only recommended you record this way when you’re pointing your phone in one direction. OnePlus says the OnePlus 9 Pro features “Nightscape Video 2.0”, but I’m not sure what’s been improved here.

Overall, I wouldn’t say that video recording is a highlight of the OnePlus 9 Pro, but it could be better. Once again, the ultra-wide-angle camera isn’t on par with the main camera in low-lighting conditions."

XDA's review of the 9 Pro (Software)

"One of my not-so-favorite features in OxygenOS 11 is “battery optimization”, which extends Android’s existing doze controls with a bunch of additional toggles that don’t tell you exactly how they’ll affect background services. What’s worse is that there’s no easy way to completely turn off all of these features, which is why OnePlus ranks so poorly on the DontKillMyApp website. I’ve had issues receiving timely notifications from Hangouts (now Chat), Discord, and Slack on OnePlus phones for years now, and it seems there’s no fix in sight. I don’t know what it’ll take for OnePlus and other Chinese OEMs to abandon their aggressive battery management features for global devices; I know why they do it for their domestic products but can’t fathom why the years of complaints from western reviewers haven’t gotten through to these companies yet."

"However, there are a few issues with custom development on OnePlus devices that you should be aware of. First, updated kernel source code for OnePlus devices sometimes never gets pushed when there’s a new OxygenOS beta update, leaving custom kernel users in the lurch. Second, you shouldn’t buy a OnePlus device with the intent to use a Google Camera port as there are known issues with access to the auxiliary cameras and full resolution of the image sensors. "

ArsTechnica's review

https://arstechnica.com/gadgets/2021/03/oneplus-9-pro-review-keeping-the-slightest-lead-in-front-of-samsung/

"One area that OnePlus loses to the competition is its update policy, which frankly isn't good enough anymore. The official line is that you'll get two major Android OS upgrades and three years of "bimonthly" (once every two months) security patches. I do have to give OnePlus credit for regularly being one of the first third-parties to deliver that first major update, but after that, things go downhill. Google and Samsung both offer three years of major updates and monthly, not bimonthly, updates. Samsung even goes a step beyond Google and offers one more year of quarterly security updates after the first three years. OnePlus used to be able to use the excuse that it was cheaper than other options, but that is no longer the case."

"Sometimes, on the OnePlus 9 Pro, you'll get way better colors than a OnePlus 8 Pro, and the low light performance is definitely improved. Other times the camera will go crazy and turn the nearest bright color into a neon highlighter. I'm sure there are some more camera software tweaks to dish out as the months go by.

The wide-angle lens and main camera usually turn in nearly identical photos in terms of color and quality. Maybe the OnePlus 9 design, with its two big, identical-looking camera lenses really hits this home, but having two nearly-identical cameras really feels like a waste. If you want a wider angle, most of the time you can just take a few steps back with the main camera and achieve the same thing. I guess it's useful if you find yourself in a cramped space, or it's good for filming Go-Pro style first-person video. But for the most part, this design feels redundant. I know this isn't specific to OnePlus; it's a problem with all smartphones. I just would rather have one big, really good camera instead of two smaller, "OK" cameras.

One major downside of the OnePlus 9 Pro camera is a drop in capability for the macro mode of the camera. We were big fans of the macro mode on the OnePlus 8 Pro, allowing you to get closer to an object and photograph it with a ridiculous level of detail. There's still a macro button on the OnePlus 9 Pro, but you can't get as close or capture as much detail as you can on the older device. It's a real shame."

"I feel like a slowly boiled frog with OnePlus' constant price increases. This year it particularly hurts, since Samsung lowered the prices of its flagship lineup by $200 as OnePlus went up $70. Even though the final phone is pretty good, OnePlus is offering less value than ever. The base-model, $729 OnePlus 9 is closest to the baseline Galaxy S21, which is $799. The OnePlus 9 Pro for $969 is closest to the Galaxy S21+, which is $999.

My main concern is that the OnePlus update policy is far behind the competition. In addition to the $200 price drop, this year Samsung increased its update policy to three years of major updates and four years of security updates, making OnePlus' two years of major updates and three years of not-even-monthly updates look sad. Depending on how long you plan to keep the phone, you could end up with a lower total cost of ownership with Samsung."

MKBHD said the camera has some shutter lag, the preview of the image is also not a representation of the final image (https://youtu.be/8eNNJESKjrE?t=756). Some of the images are overprocessed and oversharpened with big sensor fringing on close up subjects. He also said the telephoto camera is not that great (https://youtu.be/8eNNJESKjrE?t=870).

Mr Mobile said the OnePlus wireless charger does not come with it's own power brick (https://youtu.be/xjb42QwsM5I?t=172). Also said GBoard consistently misses or delays key presses from the edges of the display (https://youtu.be/xjb42QwsM5I?t=256). He also calls out the haptic motor for being anaemic (https://youtu.be/xjb42QwsM5I?t=278). Says the Hasselblad branding is mostly a gimmick (https://youtu.be/xjb42QwsM5I?t=493).
He goes into further detail here(https://youtu.be/xjb42QwsM5I?t=555). He also thinks it's overpriced for what it offers compared to the 12 Pro Max and S21 Ultra (https://youtu.be/xjb42QwsM5I?t=649)

This is probably the best and most unbiased review of the OnePlus 9 Pro so we'd recommend watching it fully.

Dave Lee says the improvements to the 9 Pro are less significant than the improvements to the S21 series and iPhone 12 series (https://youtu.be/XeXt1T3p8UI?t=213). Says the pictures are nothing special compared to the leading cameras (https://youtu.be/XeXt1T3p8UI?t=354). Says the 9 Pro is a downgrade over the 8 Pro as far as macro shots are concerned (https://youtu.be/XeXt1T3p8UI?t=385), the rest of the camera review is him going on about how underwhelmed he is by the partnership. Reports stutter just like AP (https://youtu.be/XeXt1T3p8UI?t=497). Says the earpiece speaker is quieter than last year (https://youtu.be/XeXt1T3p8UI?t=533). Doesn't like the color like every other reviewer (https://youtu.be/XeXt1T3p8UI?t=580). Says the camera design looks like a generic Chinese phone which is not a surprise considering that's what OnePlus are (https://youtu.be/XeXt1T3p8UI?t=602). Again expresses his annoyance at the marketing about the partnership (https://youtu.be/XeXt1T3p8UI?t=640). Also calls out the price at the end (https://youtu.be/XeXt1T3p8UI?t=665). Says it's not easy to recommend (https://youtu.be/XeXt1T3p8UI?t=686).