Samsung Galaxy A57 Tips and Tricks: 20 Hidden Features You Need to Know

The Galaxy A57 Is More Capable Than You Think

Samsung's mid-range lineup has quietly become the most compelling segment in the smartphone market. The Galaxy A57, released in early 2026, sits at a price point that makes it accessible to millions of users worldwide, yet it packs a feature set that would have been flagship-exclusive just two years ago. The problem is that most of those features are buried in menus, hidden behind toggles, or simply never surfaced during the initial setup process.

After spending several weeks with the Galaxy A57 as a daily driver, I have catalogued twenty features that most users never discover on their own. Some of these are inherited from Samsung's flagship S-series through the One UI 7 software update, while others are specific optimizations that Samsung built into the A-series hardware. Whether you just unboxed a new A57 or have been using one for months, there is almost certainly something on this list that will change how you use your phone.

Let us get into it.

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Essential Setup Tips

1. Enable the Hidden Developer Performance Mode

Out of the box, the Galaxy A57 runs in a balanced performance profile designed to maximize battery longevity. But the Exynos 1480 chipset inside can push harder when you need it. Head to Settings > About Phone and tap the build number seven times to unlock Developer Options. Then navigate to Settings > Developer Options > Performance Profile and switch from "Optimized" to "High Performance." This unlocks the full clock speed of the processor, which you will notice immediately in app launch times and multitasking fluidity.

The trade-off is battery life, so I recommend toggling this only when you know you will be near a charger. But for gaming sessions or heavy photo editing, the difference is substantial. Benchmark scores jump by roughly 15 percent in sustained workloads.

2. Set Up Secure Folder for Private Apps and Files

Secure Folder is one of Samsung's most underrated features, and it works flawlessly on the A57. Think of it as a completely separate phone within your phone, with its own app instances, photo gallery, and file storage, all protected behind biometric authentication.

Go to Settings > Security and Privacy > Secure Folder and follow the setup prompts. Once configured, you can install duplicate copies of apps like WhatsApp or Telegram with separate accounts, store sensitive documents, or keep private photos in a space that does not appear in your regular gallery. The folder itself can be hidden from the app drawer entirely, making it invisible to anyone who picks up your phone.

3. Customize the Always-On Display with Routines

The A57's Super AMOLED display supports a full always-on display, but the default implementation is static and uninspired. One UI 7 introduced Modes and Routines, and you can use routines to make the AOD context-aware.

Navigate to Settings > Modes and Routines > Routines and create a new routine. Set the trigger to "Time" and configure the AOD to show different clock styles, colors, or information during different parts of your day. For example, you can set a minimal clock during sleeping hours, a full calendar widget during work hours, and your step count during evening hours. The AMOLED panel means this costs almost nothing in battery when displaying dark content.

4. Configure Edge Panels for Quick Access

Swipe inward from the right edge of the screen to reveal the Edge Panel. Most users discover this accidentally and dismiss it, but properly configured, it becomes the fastest way to access your most-used apps, contacts, and tools.

Go to Settings > Display > Edge Panels and enable multiple panels. I recommend keeping the Apps panel with your top ten applications, the People panel with your five most-contacted people, and the Smart Select panel for quick screenshots and GIF creation. You can also download additional panels from the Galaxy Store, including clipboard managers, compass tools, and quick settings toggles.

Camera Tricks That Elevate Your Photography

5. Activate the 50MP Full-Resolution Mode

By default, the A57's 50-megapixel main camera uses pixel binning to produce 12.5-megapixel images. This is fine for social media sharing, but you are leaving significant detail on the table. Open the Camera app, tap the resolution indicator in the top toolbar (it will show "12MP"), and switch to the full 50MP mode.

The resulting files are roughly 15 megabytes each, but the detail improvement is dramatic, especially for landscape and architecture photography where you might want to crop later. In good lighting, these 50MP shots reveal textures and fine details that the binned images simply cannot capture.

6. Use Night Mode with a Tripod for Stunning Low-Light Shots

The A57's night mode is competent handheld, but it becomes genuinely impressive when the phone detects stability. Place it on any small tripod or prop it against a stable surface, and the exposure time extends from the usual three seconds to up to ten seconds. The resulting images capture dramatically more light and color information.

You do not need an expensive tripod. A five-dollar phone clamp attached to any small tripod works perfectly. The key is that the phone's gyroscope must detect minimal movement for the extended exposure to activate. When it does, you will see the countdown timer change to reflect the longer capture time.

7. Master the Pro Mode Manual Controls

Tap More in the camera mode selector, then choose Pro. This gives you full manual control over ISO, shutter speed, white balance, focus distance, and exposure compensation. For the A57 specifically, I have found that keeping the ISO at or below 400 produces the cleanest results, and the sweet spot for the main lens is between f/1.8 (its maximum aperture) and about ISO 200 in moderate lighting.

Pro mode also lets you shoot in RAW format. Enable this by tapping the RAW toggle at the top of the Pro mode interface. RAW files from the A57 contain surprisingly good dynamic range data, and editing them in Lightroom Mobile or Snapseed yields results that look nothing like the default JPEG processing.

8. Enable Object Eraser in the Gallery

One UI 7 brought Samsung's AI-powered Object Eraser to the A-series for the first time. Open any photo in the Gallery app, tap the pencil icon to edit, then look for the eraser icon with a sparkle effect. Tap it, then draw over any unwanted object, person, or blemish in your photo. The AI will intelligently fill in the background.

On the A57, processing takes about two to three seconds per edit, which is slower than the S-series but still entirely usable. The results are remarkably clean for simple removals like power lines, trash cans, or photobombers. Complex removals with intricate backgrounds can produce artifacts, but for everyday corrections, it works exceptionally well.

Battery Optimization Strategies

9. Enable Adaptive Battery and Turn Off Unused Radios

Navigate to Settings > Battery > Adaptive Battery and make sure this is toggled on. This feature uses machine learning to identify apps you rarely use and restricts their background activity. On the A57's 5,000mAh battery, this alone can add 45 to 90 minutes of screen-on time per charge.

Beyond that, audit your connectivity radios. If you do not use NFC daily, turn it off. If you are in an area without 5G coverage, switch to LTE-only mode under Settings > Connections > Mobile Networks > Network Mode. The 5G modem is one of the most power-hungry components in the phone, and forcing LTE when 5G is weak or unavailable prevents the modem from constantly scanning for a 5G signal.

10. Configure Charging Limits to Preserve Battery Health

Samsung quietly added an excellent battery health feature in One UI 7. Go to Settings > Battery > Battery Protection and you will find three options: Maximum (charges to 100%), Adaptive (learns your routine and delays the final charge), and Basic (caps charging at 85%).

I strongly recommend the Adaptive option. It charges your phone to 85% quickly, then waits until shortly before your usual wake-up time to top off to 100%. This means the battery spends less time at full charge, which is the state that causes the most chemical degradation. After six months of using this feature, battery health metrics stay noticeably higher than on phones charged to 100% continuously.

11. Use Power Saving Mode Without Sacrificing Usability

The A57's power saving mode has become far more nuanced than the blunt instrument it used to be. Under Settings > Battery > Power Saving, you can now individually choose which restrictions to apply. Turn off "Limit CPU speed" if you want to maintain app performance, but keep "Reduce brightness by 10%" and "Limit apps and Home screen" enabled.

This selective approach lets you extend battery life by 20 to 30 percent without the phone feeling crippled. The key insight is that background activity restriction and slight brightness reduction account for most of the power savings, while the CPU throttling contributes relatively little unless you are running intensive tasks.

One UI 7 Customization Deep Dives

12. Redesign Your Lock Screen with Interactive Widgets

One UI 7 completely overhauled the lock screen customization system. Long-press on the lock screen, then tap "Customize." You can now add interactive widgets directly to the lock screen, not just shortcuts. These include music controls that show album art, weather widgets with hourly forecasts, fitness tracking summaries, and smart home device toggles.

The A57 supports up to four widget slots on the lock screen. My recommended configuration is a weather widget at the top, a calendar widget showing your next appointment, and quick toggles for flashlight and Do Not Disturb at the bottom. These widgets update in real time and can be interacted with without unlocking the phone, which is both convenient and a significant time saver.

13. Configure the Taskbar for Desktop-Class Multitasking

When using the A57 with Samsung DeX or even in standard mode, you can enable a persistent taskbar at the bottom of the screen. Go to Settings > Display > Taskbar and toggle it on. This places a small dock of recent and pinned apps at the bottom of the screen that appears whenever you are in an app.

Swipe up on the taskbar to reveal your full app drawer. Drag apps from the taskbar to the edges of the screen to enter split-screen mode instantly. This workflow eliminates the need for the traditional Recent Apps button in most scenarios and makes multitasking feel significantly more fluid, particularly on the A57's 6.6-inch display where you have enough screen real estate to make split-screen genuinely useful.

14. Create Custom Good Lock Modules

Samsung's Good Lock app, available through the Galaxy Store, is the single most powerful customization tool available on any Android phone, and it works fully on the A57. Install Good Lock, then download the following modules:

LockStar for advanced lock screen layouts beyond what the built-in customizer offers. NavStar to customize the navigation bar with custom icons, colors, and additional buttons. SoundAssistant to add per-app volume controls and customize the volume panel UI. RegiStar to remap the side button, add custom actions to the back tap gesture, and modify the power menu.

The RegiStar module deserves special attention. With it, you can set a double-tap on the back of the phone to take a screenshot, a triple-tap to toggle the flashlight, or assign either gesture to any app or shortcut. This back-tap functionality uses the accelerometer and works surprisingly reliably.

15. Set Up Focus Modes with Automatic Triggers

One UI 7's Modes system goes beyond simple Do Not Disturb. Navigate to Settings > Modes and Routines > Modes and you will find preset modes for Sleep, Work, Exercise, and Driving, plus the ability to create custom modes.

Each mode can automatically change your wallpaper, rearrange your home screen, silence specific app notifications while allowing others through, adjust display settings, and even change your default apps. The Work mode, for example, can surface your email and productivity apps while hiding social media. The Sleep mode can enable blue light filter, reduce brightness, and silence everything except calls from starred contacts.

The real power is in the automatic triggers. Modes can activate based on time, location, connected Bluetooth devices, or Wi-Fi networks. Connecting to your car's Bluetooth automatically enables Driving mode. Arriving at the office triggers Work mode. The system learns your patterns and suggests triggers over time.

Productivity Features You Probably Missed

16. Use Samsung Notes with Handwriting-to-Text Conversion

Even without an S-Pen, the A57 supports finger-based handwriting input in Samsung Notes, and the handwriting recognition engine in One UI 7 is remarkably accurate. Open Samsung Notes, create a new note, and tap the handwriting icon. Write with your finger, and the text is converted to typed text in real time.

This is not just a gimmick. The conversion handles cursive, printed text, and even mixed styles with impressive accuracy. It recognizes multiple languages simultaneously and can even interpret simple mathematical equations. For quick notes when typing feels cumbersome, such as when you are lying down or have one hand occupied, this feature is genuinely faster than thumb typing for many users.

17. Extract Text from Any Image with Live Text

Point your camera at any text, whether on a sign, a document, a business card, or a screen, and the A57 will recognize it instantly. In the Camera app, you will see a small "T" icon appear in the viewfinder when text is detected. Tap it to select, copy, translate, or search the text without even taking a photo.

This also works retroactively on photos already in your Gallery. Open any image containing text, tap the "T" extraction icon, and select the text you need. This feature supports over 100 languages and works offline for the most common ones. I use it multiple times daily for capturing information from whiteboards, receipts, and product labels.

18. Set Up Multi-Window Pairs for Instant Workflows

Long-press the Recent Apps button or swipe up and hold to enter the multitasking view. When two apps are in split-screen, tap the divider between them, then tap the chain-link icon. This saves the pair as a shortcut that you can place on your home screen or in the Edge Panel.

Create pairs for your common workflows: YouTube and Chrome for research, Gmail and Calendar for scheduling, Maps and Messages for sharing directions. Tapping the pair icon launches both apps simultaneously in split-screen mode, exactly as you configured them. This eliminates four to five taps every time you set up your workspace and makes the phone feel purpose-built for your routines.

Security and Privacy Settings Worth Configuring

19. Enable Samsung's Enhanced Privacy Dashboard

One UI 7 added a comprehensive privacy dashboard that goes beyond stock Android's implementation. Find it under Settings > Security and Privacy > Privacy Dashboard. This shows a complete timeline of which apps accessed your camera, microphone, location, and other sensitive permissions over the past seven days.

Review this weekly. You will almost certainly find apps accessing your location or microphone when they have no legitimate reason to do so. From the dashboard, you can revoke permissions with a single tap. Pay particular attention to apps that access the microphone in the background, as this is the most common vector for unwanted data collection on Android devices.

Additionally, enable the camera and microphone indicator dots under Settings > Security and Privacy > Alert When App Accesses Clipboard/Camera/Microphone. These place small green dots in the status bar whenever either sensor is active, giving you real-time visibility into what your phone is doing.

20. Configure Auto Blocker for Maximum Protection

Samsung's Auto Blocker feature is the most aggressive security tool available on any Android phone, and it ships turned off by default on the A57. Enable it under Settings > Security and Privacy > Auto Blocker.

Auto Blocker does several things simultaneously. It prevents side-loaded apps from being installed, which blocks the most common malware vector. It enables Samsung Message Guard, which neutralizes zero-click exploits in image files received through messaging apps. It blocks unauthorized USB commands when the phone is connected to a computer or charger, preventing juice-jacking attacks. And it activates enhanced app security scanning that checks installed apps for malicious behavior in real time.

For most users, I recommend enabling all Auto Blocker features except the sideloading restriction, which should only be disabled if you legitimately need to install APK files from sources other than the Play Store or Galaxy Store. If you do disable that particular restriction, re-enable it as soon as you have finished installing the app you need.

Bonus: Maintenance Tips for Long-Term Performance

Beyond these twenty features, a few maintenance habits will keep your Galaxy A57 running smoothly for years. First, restart the phone once a week. One UI 7 includes a scheduled restart option under Settings > General Management > Reset > Auto Restart, which can reboot the phone during sleeping hours to clear accumulated memory leaks and temporary files.

Second, periodically check Settings > Battery > Background Usage Limits and review the list of apps in the "Deep Sleeping" and "Sleeping" categories. Apps placed here have severely restricted background activity, which is good for battery life but can delay notifications. Make sure your important communication apps are not on these lists.

Third, keep One UI updated. Samsung has committed to four years of major OS updates and five years of security patches for the A57, and each monthly update includes both security fixes and performance optimizations specific to your device. Enable automatic updates under Settings > Software Update > Auto Download over Wi-Fi to ensure you never miss a patch.

The Bottom Line

The Samsung Galaxy A57 is a phone that rewards curiosity. Its hardware is more than competent, but the real value lies in the depth of Samsung's software. One UI 7 is, without exaggeration, the most feature-rich Android skin available in 2026, and having access to the full suite on a mid-range device is something that would have been unthinkable a few years ago.

These twenty tips represent what I consider the highest-impact changes you can make to your A57 experience. None of them require technical expertise, and all of them are reversible if you decide a particular feature is not for you. Start with the ones that address your biggest daily frustrations, whether that is battery life, camera quality, or workflow efficiency, and build from there.

The gap between a phone used at its default settings and a phone configured intentionally is enormous. With these features enabled and configured, the Galaxy A57 does not just compete with phones twice its price. In daily usability and customization depth, it surpasses many of them.