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Samsung Galaxy A21s Common Problems – HOW TO FIX IT?

Hello, how are you? I hope you are having a fantastic day. Today in this article, I have come up with a guide on common problems in Samsung Galaxy A21s smartphone.

If you are facing any type of issue or problem with Samsung Galaxy A21s smartphone, then you can quickly fix those problems by following our guide.

Samsung has recently launched its brand new smartphone called Samsung Galaxy A21s. This device offers the best features in its price range.

But many users are facing problems after using this Samsung Galaxy A21s phone. But don’t worry today. I will show you a proven solution to all questions and issues.

Samsung Galaxy A21s Common Issues and Problems

I have discussed various common issues and problems on the Samsung Galaxy A21s. All the solutions that I have shown below are tested and proven methods.

Please read this article till the end, and be sure to understand every method before applying it to your Samsung Galaxy A21s device. let’s see the Quick specifications of Samsung Galaxy A21s.

Samsung Galaxy A21s Battery fast Charging test 0% to 100%

Quick Specs Of Samsung Galaxy A21s

Display 6.5 inches Super AMOLED capacitive touchscreen Display. Its pixel resolution is 720 x 1600.
Color Black, Blue, White, Red
Processor Exynos 850 Octa-core 2.0 GHz CPU
Storage Variants 3GB32GB 4GB64GB 6GB64GB
Rear Camera Quad – 48 MP 8 MP 2 MP 2 MP
Front Camera Single – 13 MP Camera
Battery 5000 mAh Li-Po battery 15W Fast charging
Operating System Android 10, One UI 2.0
Sensors Fingerprint (rear-mounted), accelerometer, proximity

Below I have shared various common issues problems and their solutions. These problems are most common on almost every smartphone.

But if you are facing any problem with your phone, then I am sure that today you will definitely get your solution in this guide.

A Laggy or Slowly User interface on your Samsung Galaxy A21s

Do you feel a slow and sluggish user interface while using your smartphone? If yes, then here is the complete solution for your device.

This problem is something that almost everyone experiences. This is the most common smartphone issue and is more common with older phones.

Also this problem occurs in new phones, because your RAM (Random-access memory) is full of apps and files that you don’t use or need.

Please read all the steps carefully and then apply them on your phone.

How to Fix Lag on the Samsung Galaxy A21s device?

  • If you use any type of antivirus app on your smartphone or use any junk cleaning app, then uninstall it.
  • One thing is universal: when is the phone slow? In 90% of the cases, if your internal storage is Running out or has come to an end, then your smartphone will be slow. So simply free some storage, and your Samsung Galaxy A21s phone will be back to normal.
  • Simply uninstall the app you don’t use.
  • Use the Fast Class 10 Micro SD card on your phone.
  • Sometimes using a custom theme on the phone makes the phone slow.
  • If you use the Third Party Launcher, then this may be the cause of this problem. You should uninstall the Third Party Launcher and use the System Launcher.
  • Use the lite version application like Lite, Lite, YouTube Go, etc.
  • Update your phone to the latest OS available.
  • Update all your apps whenever an update is available in the Play Store.
  • Following all these steps, if you feel that your phone is still slow, then you try Hard Reset your phone.

With the help of all the steps above, I have discussed all possible solutions so that you can quickly fix the Lag or slow user interface problems on your Samsung Galaxy A21s device.

Fast Battery Drain on your Samsung Galaxy A21s

If your Samsung Galaxy A21s battery is draining drastically, then you can follow the steps given below. By following the below steps, you can be sure that what is causing the Fast Battery Drain problem on your smartphone.

How to fix fast battery drain on the Samsung Galaxy A21s device?

  • If you have installed apps like Phone Cleaner, uninstall it. Because these apps run in the background and consume your phone’s battery.
  • Download the app from the play store itself. Because third-party apps can contain malware that runs on the phone background and consumes a lot of battery.
  • If GPS is not needed, always turn off GPS.
  • Keeping the phone in power saving mode for a long time also drains the battery quickly.
  • If you have installed an app that claims to increase your phone’s battery backup, then uninstall this type of app.
  • Using high screen brightness settings on the Samsung Galaxy A21s can drastically reduce your battery. So use the phone with average brightness.
  • Clear all your recently used apps from the recent app tab because it drains the battery quickly.
  • If NFC, Bluetooth, Wi-Fi are not needed, always keep them turn off.
  • Following all these steps, if you feel that your phone is still Fast Battery Drain, then you try Factory Reset your Samsung Galaxy A21s.

After following the above steps, I am sure that you will not have to face the battery draining issue again. If you are still experiencing this problem, then contact your smartphone customer support and follow the instructions.

Cellular Network Issue Or Mobile Data Problem On The Samsung Galaxy A21s.

If you face cellular network issues on your Samsung Galaxy A21s. And if your phone is not getting the proper signal or the mobile data network is not working, and you see fluctuations on the phone network, then you should try the below steps.

How To Fix Cellular Network Issue Or Mobile Data Problem On The Samsung Galaxy A21s?

  • Remove SIM card from your Samsung Galaxy A21s device and insert the SIM again.
  • Turn ON airplane mode for 30 seconds, and after a few seconds, turn it OFF again.
  • Reset your network settings.
  • Be sure to restart your Samsung Galaxy A21s once and check if your problem is fixed.

This is a common problem, and you can troubleshoot this problem by following all these steps. If you still have a network problem with your Samsung Galaxy A21s, Then be sure to leave a comment, I will guide you further.

Heating Problem On your Samsung Galaxy A21s

There are two primary reasons for a smartphone to heat up, one is the phone’s SoC (System On Chip), and the second one is the phone battery. If you are facing a heating problem in your Samsung Galaxy A21s, then you can fix it with few changes.

How to fix heating Problem On your Samsung Galaxy A21s?

  • While charging the phone, remove the phone case.
  • Do not play games while charging your phone, and do not use the phone too much.
  • Charge your Samsung Galaxy A21s with the original charger only.
  • Heating problems are also caused by playing games for a long time on your phone.
  • Do not install third-party apps. Always download apps from the play store.
  • Do not overcharge your phone, and this can also cause heating problems.
  • Always keep your Samsung Galaxy A21s updated and keep updating all your apps.

I hope all these steps will reduce your phone’s heating problem and temperature if your phone still has a heating problem, then go to the service center and resolve it.

Apps Opening Slowly On The Samsung Galaxy A21s

This problem is very common because this problem is found in all Android phones, and this problem is basically due to improper RAM management of the phone. If the app in your phone is opening slowly, then follow the steps given below, so that you can solve this problem.

How To Fix Apps Opening Slowly On The Samsung Galaxy A21s?

  • First, check if your phone’s internal storage has enough storage. If not, uninstall the apps you don’t use.
  • Use the lite version application like Lite, Lite, YouTube Go, etc. This can reduce more RAM usage on your phone.
  • If you have installed any type of Mod Apps in your Samsung Galaxy A21s, uninstall it immediately.
  • Following all these steps, if you feel that your apps are still opening slowly, then you try Factory ResetSamsung Galaxy A21s.

Samsung Galaxy A21s Phone unexpectedly shutting down

This problem is common because this problem occurs in all Android phones. In this problem, your phone suddenly turns off. If you are facing this type of problem with your Samsung Galaxy A21s smartphone, then definitely consider the steps given below.

How to fix sudden shutdown in Samsung Galaxy A21s?

  • If the temperature of the phone rises to the maximum level, then it can also be the reason for the sudden shutdown of your phone, so take care of heating issues.
  • Do not use a heavy back cover as this may cause heating problems.
  • Following all these steps, if you feel that your phone is still sudden shutdown, then you try Factory Reset your Samsung Galaxy A21s.

I hope all these steps will solve the sudden shutdown issue on Samsung Galaxy A21s. But you still encounter this issue, then go to the service center and resolve it.

Samsung Galaxy A21s Screen frozen or stuck

You may face this problem while doing a task, playing a game, or making a call. Follow the steps given below to fix this problem.

How to fix screen froze or stuck on Samsung Galaxy A21s?

  • Update your phone to the latest OS available.
  • Simply uninstall, and Force stops the app you don’t use.
  • If you are experiencing this problem while using an app, then you go to Settings Application Manager Then clear the cache of the app you are facing problems.
  • In the last step, perform a factory reset your Samsung Galaxy A21s smartphone. It can solve all your problems.

Screen flickering Issue In Samsung Galaxy A21s

If the screen of your Galaxy A21s is flickering, then first you need to find out whether the problem is related to software or hardware.

Don’t worry, screen flicker is a common problem, and it is usually caused by a software issue that can be caused by a glitch in the software bug.

How to Fix Screen flickering Issue In Samsung Galaxy A21s?

  • First of all, make sure that your device is updated with the latest software version.
  • Once, Restart your Samsung A21s.
  • Disable adaptive brightness in Galaxy A21s.
  • Clear the cache on your Samsung device, then see if your screen flickering problem is fixed or not.
  • Check your device in Safe Mode.
  • That’s It

If you have followed all the steps mentioned above and your smartphone’s screen is still flickering, please contact your nearest Samsung service center for further assistance.

Apps and Games Crashes Suddenly or Unexpectedly on the Samsung Galaxy A21s

If you open an app or game, and that app suddenly closes, then this is a common problem and follow the steps below to solve this problem.

How to fix sudden app crashes on Samsung Galaxy A21s?

  • Update your apps to the latest version.
  • Uninstall and reinstall the app. This will fix the app’s sudden crashes problem.
  • If your phone has Power Saving Mode Enabled, then Disable it.
  • If you are experiencing this problem while using an app, then you go to Settings Application Manager Then clear the cache of the app you are facing problems.

The above steps can be used to solve this problem. If you are still facing this problem, then leave a comment mentioning your problem.

If you are looking for a guide on how to Root Samsung Galaxy A21s, then make sure to check out that article as well.

Apps not downloading from the Play Store on Samsung Galaxy A21s

How to Fix Apps not downloading from the play store on Samsung Galaxy A21s?

Sometimes this problem occurs due to the new update of the Play Store. This is a common problem that you may have to face. You can find a solution to this problem with the steps given below.

  • First of all, reboot your phone and see if your problem is resolved or not.
  • Clear the Play Store local search History.
  • Go to Settings then go to App Manager and clear Play Store Cache.

Screen flickering Issue In Samsung Galaxy A21s

If your smartphone’s screen is flickering, then the first thing you need to do is to find out whether the problem is related to software or hardware.

Screen flickering is a common problem, and it is usually caused by a software problem that may be caused by glitch in a software bug.

What to do if your Galaxy A21s screen is flickering?

  • First of all, make sure that your device is updated with the latest software version.
  • Once, Restart your Galaxy A21s.
  • Also, Disable adaptive brightness in Galaxy A21s.
  • Clear the cache on your Samsung device, then see if your screen flickering problem is fixed or not.
  • Boot your device into Safe Mode and check your problem is fixed or not.
  • That’s It

If you have followed all the steps mentioned above and your smartphone’s screen is still flickering, please contact your nearest Samsung service center for further assistance.

Here I have covered all the issues and problems regarding the Samsung Galaxy A21s smartphone and try to fix them.

If you still have any other problems with your Samsung Galaxy A21s, then leave a comment below, and I will update the article.

Conclusion

So, I have shown you the complete guide on how to fix common problems in Samsung Galaxy A21s. I hope you find this article useful and you are able to solve the problem on your Samsung Galaxy A21s device.

If you have any doubts or questions related to this guide, then make sure to drop a comment, and I will try to resolve your issue as soon as possible.

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Samsung Galaxy A21s Review: A Good Budget Device

Once upon a time, the Galaxy A series was all about mid-range phones but since its merger with the Galaxy J series last year, we have been blessed with different iterations of budget devices including Galaxy A20, Galaxy A20s but now the company has brought in another contender for the position of entry-level Champion named Galaxy A21s. In 2020, the Galaxy A series has been in the highlight due to its stunning looks which are accompanied by all the trendy features and the new entry-level phone is no exception.

The smartphone comes with a quad-camera setup at the back and is one of the first devices to feature the company’s very own Exynos 850 chipset that is based on 8nm design technology and is capable of providing immense power to the smartphone. Keeping up with the trend of a large battery, the phone has been blessed with a 5000mAh battery capacity but can all these features help the device to rule the entry-level phone segment? Let’s dive into our review to find out:

Design and Display

Samsung Galaxy A21s flaunts a shiny plastic body that has become a usual component in entry-level smartphones but with all its beauty, the device is a classic fingerprint and smudge magnet and you’ll have to consider enveloping it in a phone case to keep it clean. The placement of the quad-camera setup looks exactly like what we have seen on Galaxy A31 and at the same time, it also partially reminds us of the camera formation present on the Galaxy A51. You will also find a fingerprint scanner placed right next to the phone’s rectangular camera setup which unfortunately doesn’t add anything to the phone’s overall beauty.

Coming to the phone’s screen, Samsung has provided 6.5 inches of TFT LCD display which comes with 720 x 1600 (HD) resolution. At the bottom chin, you can find quite noticeable bezels, a swift reminder that you are carrying a budget smartphone.

From Samsung’s standards, the display of Galaxy A21s is quite dull as the company has made us all addicted to AMOLED screens, and being a user, you can just pay slightly more money to get your hands on this feature in the Galaxy A30 and Galaxy A31.

The device shows decent color reproduction but for a smartphone that is priced more than Rs. 30,000, the touch and sensitivity of the phone’s display are quite disappointing. In the same price range, Infinix Note 7 provides a gorilla glass screen with a much smoother and better touch experience.

The budget screen technology of the smartphone also does not offer color customization settings for the user and you’ll have to be content with only adjusting the brightness levels and enabling/disabling the in-built dark mode. Samsung has also provided visibility enhancement options in the default display settings which can help ease eye strain caused by constantly using the smartphone.

Performance

Galaxy A21s is equipped with Octa-Core Exynos 850 chipset that is based on 8nm design technology. So far, we have seen 7nm based processors for flagship phones by Qualcomm, Mediatek, and Huawei but this is the first time that a less than 200 phone receives a chipset based on an 8nm design which combined with an eight cortex A55 cores hints at a really good power efficiency from the smartphone.

Another Samsung A21s display Replacement

Samsung’s budget device also comes with ARM Mali G52 MP1 for graphics, 4GB RAM, and 64GB of internal storage which can be expanded by up to 512GB using a microSD card. It features an Android 10 operating system with Samsung’s OneUI 2.0 skin on top.

Theoretically, on the Antutu benchmark, Samsung Galaxy A21s is almost 60% better in terms of performance as compared to the Galaxy A20s with Snapdragon 450 chipset. The new device scored 113827 on the benchmark whereas the latter smartphone reached 70577 when we tested it in the past. In real-life tests, we have noticed that Galaxy A21s breezes through day-to-day tasks, and unlike its predecessor as well the Galaxy A31, the onboard chipset continues to prove its might with smooth performance.

The smartphone offers a single speaker at the bottom which can produce modest enough volume to fill up a small-sized room but for a better experience, while watching multimedia, we recommend that you use an earpiece.

Battery

Among all the Galaxy A series’ devices that we have tested so far, Galaxy A21s gave us the best battery consumption rate. The 15W charger takes almost 2 hours to fully recharge the smartphone, exactly the same time is taken by the Galaxy A30s that featured a slightly smaller battery. It has to be noted here that this is also the best charging time we have noticed so far including the phone’s other rivals in the entry-level segment.

In our video loop test, the smartphone fully drained itself in 16 hours and 32 minutes which we would say is a commendable feat. If you want to have a detailed look at our complete battery test, you can check it out in the video below:

Galaxy A21s Camera

According to the company, the new Exynos 850 chipset supports dual 16MP 5MP cameras and 21.7MP single lens but interestingly the Galaxy A21s features a quad-camera setup with a 48MP main lens. As for the other three cameras, we get an 8MP ultrawide lens, 2MP macro lens, and 2MP depth sensor. For selfies, we have a 13MP shooter at the front which comes with the screen flashlight support for low-light images.

The default camera app of the smartphone comes with limited modes that perform well under good lighting conditions but will struggle to capture your moments at night. Just like Galaxy A31, we strongly missed the presence of a dedicated night mode which can be found in rival Chinese phones falling in the same price range. If you are a photography lover, the absence of this feature may put you off but during our tests, the phone’s nighttime performance was proved to be miles ahead of Galaxy A20s which couldn’t perform in the dark.

All Samsung devices come with HDR mode enabled by default which is pretty helpful in taking pictures on bright sunny days. The feature only works for 12MP mode and not for 48MP mode which is why the former takes better shots against bright light sources like the sun. The 48MP mode, in contrast, blows out the light source and can mess up the exposure level, colors, and dynamic range as it lacks HDR support.

The shots taken in 12MP mode capture the true colors of the subject but it tends to make the sky slighter bluer and greens a little greener which looks quite pleasing to the eyes.

When the camera is not directly in front of a light source, the 48MP mode can produce much more vibrant colors. Though the exposure is slightly above the normal mode, it does not go too far as to ruin the shot. However, the photos taken in this mode show more noise as compared to the image taken by the 12MP mode.

The super wide-angle feature works only for 12MP shots and as a result, we get colorful and well-contrast images which due to a smaller 8MP lens manages to capture lesser details of the subject. But, it is to be expected as the super wide-angle lenses are smaller in size than the main cameras in almost every mid-range smartphone.

Samsung Galaxy A21s comes with digital zoom which works well in the daylight. the phone’s camera algorithm manages to maintain the color reproduction and we didn’t notice any loss in exposure, color, and detail. At 2x zoom, the images look quite acceptable and the noise level is not too high. The mode works great till 4x zoom, beyond that the images show quite a noticeable loss of details. However, if you are only watching the images on a smaller screen, they are nearly acceptable granted that you do not zoom any further.

For bokeh shots, the smartphone uses the Live Focus feature which at the right distance and under good lighting can produce punchy bokeh images that carry a good amount of details. When it comes to edge detection, the camera fails to make a clear distinction between the subject and the background. In the outdoors, we had to take multiple shots to get to the right edge detection but under the controlled light, it produces good results.

Samsung has reserved its night mode so far for the mid-range and flagship phones which may not be a deal-breaker for a budget user but it overall matters because the standard modes of Galaxy A21s do not work as well at night as they do during the day

We will admit that the company has put a bit more effort to better the low-light photography in its budget phone and as a result, we get better shots than the ones produced by Galaxy A20s and even Galaxy A31. The latter fails at handling artificial lights at night whereas, Galaxy A21s produces comparatively better results if not the ideal. Though both phones lack night mode, the new entry-level phone can handle the subject when light falls in balance. Though the noise level is quite high in low-lit images, the device can behave quite acceptably in most scenarios at night.

If you want to take portraits and selfies at night, you will have to take the help of the LED flashlight at the back and screen flash at the front. You have to be cautious as the flashlight doesn’t do justice with the skin tone and can make it appear more yellowish, making it look a bit unnatural.

Overall, we agree that the camera on this device is quite an improvement from Samsung’s previous models.

Final Verdict

With Galaxy A21s, we can see that Samsung has finally started to take its lower-level smartphones quite seriously. The first generation of revamped Galaxy A series in 2019 came with many shortfalls but this time, the company has made improvements in performance with its very own Exynos 850 chipset. The phone’s low-resolution TFT screen helps to keep the phone’s battery going that translates into good battery backup which can last more than a day.

Similar to Galaxy A31, this device is not an attractive option for gaming enthusiasts, but in comparison, it is not a total disappointment as users can smoothly play PUBG at lower settings without experiencing many frame drops. However, it can’t be denied that the 720p TFT screen doesn’t produce sharp and crisp-looking graphics for the display and the touch sensitivity is not up to par at crucial firing moments. While gaming, you will also have to rely on your earphones as the sound level and quality produced by the speaker aren’t ideal.

Samsung Galaxy A21s

Samsung Galaxy A21s price in Kenya starts at 19,000 Kenya shillings. It runs on the Samsung Exynos 8 Octa Chipset. A21s has 3 GB RAM and 32 GB internal storage. The phone is also powered by an Octa-core (2 GHz, Quad-core 2 GHz, Quad-core) processor.

Samsung Galaxy A21s specs and price in Kenya

Ksh. 19,000
6.5″ inch Super AMOLED
Exynos 850
Dual SIM
4G
Android 10, One UI 2.0
4 GB
128GB /64 GB
up to 1 TB (dedicated slot)
48MP 8MP 2MP 2MP
13MP (wide)
Yes
2.0, Type-C 1.0
Rear-mounted
Li-Po 5000 mAh
Black, White, Blue, Red

Stylish look

You should check out the images simulated for illustrative purposes on the official website, to have a look at the A21s’s design. The best I might be able to say here is that the phone measures 163.7 x 75.3 x 8.9 mm and weighs about 192 grams. Let’s face it, apart from the rear-mounted fingerprint scanner on the A21, Samsung is maintaining the A-series design here. I have in mind Samsung Galaxy A71 And Galaxy A51 smartphones in Kenya. This is because the camera module has that (now) traditional A-series L-shape. We will get into the cameras later on in this review.

Now about style. Samsung Galaxy A21s comes in three color options Black, White, Blue, and Red. The build here is plastic frames, a plastic back, and a glass front. By the way, be sure to check out the original Galaxy A21. A21s has a glossy and holographic finish that catches the eye. The smooth curves of the body allow for an easy and secure grip when navigating the screen. Its button placement sees the power button and volume rocker on the same side of the phone. This usually comes in handy when taking screenshots.

Display

Immerse yourself in the large 6.5-inch Infinity-O Display of Galaxy A21s is the statement used to describe the display here. But what strikes at first glance is that hole punch wherein the selfie camera lies. We are talking about a PLS TFT capacitive touchscreen here with 16M color support.

Samsung will no longer be making IPS displays since sometime this (2020) year. So we see a PLS TFT screen instead. It is a 6.5 inches display that covers an area of 102.0 cm2. The 720 x 1600 pixels display resolution however is something to murmur about given the price of the Samsung Galaxy A21s.

Platform

The Exynos 850, which is the latest entry-level SoC by Samsung. It is built on the 8nm LPP process, packs eight Cortex-A55 cores with a maximum frequency of 2.0 GHz, and doesn’t support any sort of 5G – source. This is the chipset Galaxy A21s comes with. The phone also has an Octa-core (4×2.0 GHz Cortex-A55 4×2.0 GHz Cortex-A55) CPU and a Mali-G52 GPU.

Samsung Galaxy A21s is an Android 10 powered device with Samsung‘s One UI 2.0 skin on top of Android. This too is the case with Samsung Galaxy A11. The phone comes in three storage option i.e 128GB 4GB RAM, 64GB 4GB RAM

Speaking of internal storage options. You will be pleased to learn that there is a dedicated slot for storage expansion on the Galaxy A21s. This means you will not have to sacrifice a SIM slot for that microSDXC (up to 512 GB). The internal storage is also of eMMC 5.1 infrastructure. Samsung Galaxy A21s has fast processing and spacious storage so you can FOCUS on it now. The phone delivers smooth and efficient performance see also Huawei Y8p.

Galaxy A21s cameras

The catchline of the Samsung Galaxy A21s’s camera is, “A Quad Cam lets you shoot with more perspective.” You get to go ultra high-res with a 48MP Main Cam for crisp, clear photos day and night and a 123° 8MP Ultra Wide Cam captures more of the view. This is not all. There are two other camera lenses on the back panel as you can see in the product image above. They are a 2 MP, f/2.4, (macro), and a 2 MP, f/2.4, (depth sensor).

Onboard still is a 13MP selfie (front camera) that gives you clear, high-resolution photos. And with Live FOCUS present with it, the selfie will have a gently blurred background. What we are dealing with here is [email protected] video recording for both the main and front-facing cameras (see also Galaxy A31).

Battery

Actual battery life may vary depending on the network environment, usage patterns, and other factors. But Samsung Galaxy A21s 5000 mAh battery should last a whole day of usage with ease. Its rated (minimum) capacity is 4,900 mAh. Samsung has also included a fast charging 15W capability here to ensure the wait time while charging is reduced.

Oppo A92 is another great example of a phone with a long-lasting battery. You might also want to check out Huawei Y6p‘s non-removable Li-Po 5000 mAh battery if you are shopping for long-lasting battery life smartphones.