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Samsung Galaxy S21 Problems: 5 Things You Need to Know



Samsung Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra users are running into a variety of bugs, performance issues, and software glitches.

Samsung’s flagship smartphones have received excellent reviews, but they’re far from perfect. We continue to hear about an assortment of Galaxy S21 problems as we push deeper into the year.

Keep in mind, the Galaxy S21 series is still fairly new. Samsung’s still working to resolve problems that have been around for months and we’ll continue to see new issues emerge as people put more mileage on their phones.

Buy the Samsung Galaxy S21 5G for Just $149.99 w/ Trade In

In this guide you can learn about the current state of Galaxy S21 problems, potential fixes for these problems, places to find feedback, and what’s next in terms of Android software updates for these devices.

Galaxy S21 Problems

Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra users are encountering numerous bugs and performance issues. This is particularly true for users who recently install Samsung’s Android 12 update.

Galaxy S21 users are reporting abnormal battery drain, installation issues, notification issues, problems with first and third-party apps, UI lag, charging issues, data issues, screen refresh problems, issues with the camera app (the app has crashed numerous times on the Galaxy S21 in our possession), Wi-Fi problems, sound issues, and more.

This list will grow as times goes on as more people buy the Galaxy S21 series and as Samsung pushes out new software updates to these phones.

Where to Find Feedback

If you own a Galaxy S21, Galaxy S21+, or Galaxy S21 Ultra, or if you’re thinking about buying one, make sure you keep an eye on feedback from Galaxy 21 users.

There are several places to find feedback about the Galaxy S21 series, the Android 12/One UI 4 update, and the Android 11/One UI 3 update. We recommend keeping an eye on XDA-Developers, the Galaxy S21 Reddit, and the Android Reddit.

If you live in the United States you’ll also want to keep your eyes on the official AT&TVerizon, and T-Mobile forums if you own a Galaxy S21 model on one of those networks.

We also recommend poking around social media sites like Twitter and YouTube for feedback about the Galaxy S21’s current performance.

We’ll also provide you with the latest information about Android updates for the Galaxy S21 so be on the lookout for new information as we cruise through the year.

Prepare for Software Updates

Samsung and its carrier partners will fix a lot of these lingering issues, but software updates often bring problems of their own so you’ll want to be extremely careful.

When you fire up your Galaxy S21 there’s a chance you’re prompted to download a new version of Android. Again, new updates can cause problems so you’ll want to prepare your device for the move to a new Android build.

There’s no way to predict how a new version of software will impact your Galaxy S21’s performance. Some of you will see a performance boost, others will run into issues. This is precisely why you should spend some time prepping your phone for the move.

We’ve put together a game plan that takes you step-by-step through the process we always use before we install new software on our Android devices.

If this is your first Galaxy phone or you simply don’t know where to start, take a look at that guide.

How to Fix Galaxy S21 Problems

If you run into a bug or performance issue on your Galaxy S21, there’s a good chance you’ll be able to fix whatever is ailing your phone.

If you run into an issue, take a look at our list of fixes for common Galaxy problems. We’ve also released a guide that could help you fix battery life issues.

If you don’t find what you’re looking for in our guides, you should check out the XDA’s Galaxy S21 forum, carrier support forums (AT&T, T-Mobile, Verizon, for example), and the Galaxy S21 Reddit for potential fixes.

You can also get in touch with Samsung or your provider on social media sites like Twitter. Samsung’s also got a customer support line that could help.

What’s Next

Samsung pushes monthly security patches to the Galaxy S21 series and these updates sometimes include bug fixes for lingering issues.

Software support for the Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra will last for years. Samsung currently provides four (or more) years of support to flagship devices like the Galaxy S21 series.

If your carrier offers an Android update schedule, keep an eye on it for details. Carriers like Rogers, Fido, and Telus in Canada and Vodafone in Australia keep their customers informed about upcoming Android software updates.

If your carrier has a similar schedule available, you might want to bookmark it and keep an eye out for details regarding incoming software updates for your Galaxy S21 model.

Samsung recently pushed Android 12 and One UI 4.0 to the Galaxy S21 series and unsurprisingly, we’ve seen a bunch of complaints about the software’s performance. Fortunately, Samsung’s already rolling out bug fixes.

The company recently pushed out a new Galaxy S21 Android 12 update that fixes for a 120Hz screen-refresh bug impacting Snapdragon Galaxy S21 users.

The company will roll out additional software updates so be on the lookout for bug fixes for Android 12 problems in the near future.

For more on Samsung’s Galaxy S21 Android 12 update, have a look at our guide.

5 Reasons to Wait for the Galaxy S22 & 3 Reasons Not To

Wait for Even Better Performance

Wait for Even Better Performance

You can expect the Galaxy S22 series to build on the foundation left behind by the Galaxy S21 series and offer improved performance in a number of key areas.

Per usual, you can expect the Galaxy S22 to come with an Exynos processor in some markets and a Qualcomm chipset in others. 

Nothing is confirmed, but there's a good chance the Galaxy S22 utilizes Qualcomm's next-gen Snapdragon processor. It should be the processor that powers the Galaxy S22 series in most markets

Initially, it looked like the chip would be called the Snapdragon 898, but it's actually called "Snapdragon 8 Gen 1."

The processor has already shown up in Galaxy S22 benchmarks

As for the Exynos side of things, Samsung is reportedly testing a new version of the processor with AMD graphics. It will reportedly be called Exynos 2200.

Like the Snapdragon, we've seen the Exynos 2200 appear in early benchmarks. The processor has shown up on the Galaxy S22 Ultra. 

New processors should help the Galaxy S22 series deliver even better performance in key areas like speed, battery life, gaming, and multitasking.

The Galaxy S22+ and Galaxy S22 Ultra batteries have passed 3C certification. The Galaxy S22+ is listed with a 4,370 mAh battery (probably a 4500 mAh capacity) while the Galaxy S22 Ultra is listed with a 4,855 mAh battery (probably 5000 mAh capacity). 

The Galaxy S22 battery has also received certification in South Korea and it's listed at 3,590 mAh which probably means 3,700 mAh. 

Digitimes is also saying that Samsung is "reconsidering adopting vapor chambers for its new smartphones for 2022." This could help the devices run at peak performance for longer periods of time. 

The report doesn't mention the Galaxy S22 series, but there's certainly a chance the flagship devices adopt this technology.

We've also heard that Samsung is currently testing improved charging power on the Galaxy S22. The information comes from leaker Ice Universe. He says the company is trying to bring charging power above 25W to 45W or 65W fast charging. 

In a new tweet, Ice Universe says he's 100% sure the company will bring 45W wireless charging to the Galaxy S22 Ultra.

Twitter leaker FrontTron also claims Samsung is planning to test 65W charging on the Galaxy S22 series. 

Another report points to 25W charging across the board, but we'd take it with a grain of salt given what we've heard thus far. 

If you're a power user and you aren't thrilled with what's out there right now, you might want to sit back and wait for the Galaxy S22 series. 



  1. Marie Izzo

    08/01/2021 at 2:28 pm

    I have had issues with my S21 since I purchased. Samsung told me they are aware there are serious issues and the fix would not come before Aug/Sept. They recommended I send the phone to them, which I did and it came back with the same issues after being told my them that there is nothing wrong with it. My carrier, Xfinity has been NO help at all.
    My issue are: the phone does not receive calls about 50% of the time yet it does not show a missed call; many times it will not let me text; there are times it will not send my messages when I do text – the only correction for all this has been to restart the phone about 20 times a day. i have been a samsung owner for years and this is a terrible issue especially for safety!

  2. Daren

    08/13/2021 at 12:28 am

    I have had a Samsung Galaxy S21Plus since March. My major issue is it randomly turns off and restarts and can do this several times in a row – off, on, off, on, off, on. I can be in the middle of writing an email or a phone call (it’s my business phone) and suddenly without any warning, turns off!!! It’s been happening pretty much since the beginning but has gotten worse in time. I have had enough so I took it to Samsung and they serviced it.

    I received it again and once again this fault continued. I took it back again and I got a call from them to say they couldn’t open it up to look as I haven’t sent it back 3 times yet! They want a video of it turning off and a verbal commentary of what happens. This customer service lady was very arrogant and didn’t listen or believe I was having massive problems with this DOA phone. It’s a dud and I won’t be buying another Samsung phone or product – not only because of the faulty products, but their customer service is nonexistent.

    Like the comment above, I have owned Samsung phones for around 20 years but that mean nothing to this arrogant company.

  3. Tom Carlson

    10/03/2021 at 1:22 pm

    I’ve tried to get help from Samsung, but get NOTHING. My phone does NOT RECEIVE CALLS AT ALL. I have spent HOURS with SAMSUNG TECH who have promised help and responses within 48 hours. NEVER HEARD ANYTHING; NO REPLIES WHATSOEVER after repeatedly discussing the problem. ATT says this is a daily and typical complaint because SAMSUNG CANNOT RESOLVE the software glitch causing this apparently PREVALENT and KNOWN PROBLEM. Phone newly purchased in July, 2021. I care more about making and receiving calls on my PHONE than I care about whether it has “super-duper cameras”. Why would I upgrade to another Samsung phone? Waiting one more week before instigating and filing class-action lawsuit.

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