Have you seen the “System update available” notification and wondered: is it worth wasting time, traffic and battery power? Updates Android are often taken for granted - they say, “once it’s arrived, it’s necessary.” But in practice, every firmware upgrade carries both obvious advantages and hidden pitfalls. In this article, we will look at what exactly does updating your smartphone to Androidgive you, when it is really necessary, and in which cases it is better to stay on the old version.

Spoiler: not all updates are equally useful. For example, on devices older than 3 years, major upgrades (for example, from Android 11 to Android 13) can lead to a performance decrease of 15-20% due to increased hardware requirements.. At the same time, a critical security update for Samsung Galaxy S22 in March 2026 closed a vulnerability that allowed hackers to remotely activate the microphone. So where is the golden mean? Read on.

1. Security: why updates are your main shield from hackers

If you had to choose one reason to update Androidit would be security. According to Google, more than 40% of exploited vulnerabilities in mobile devices are associated with outdated firmware versions. Manufacturers release monthly patches that close critical gaps that can be used for:

  • 🔓 Data theft: access to photos, messages, passwords from managers (for example, 1Password or Google Password Manager).
  • 🎤 Whispers: activation of a microphone or camera without your knowledge (known cases with vulnerabilities CVE-2023-21250 in Pixel i Samsung).
  • 💳 Financial fraud: interception of SMS with confirmation codes for banking transactions.

Updates are especially critical for devices with support mobile payments (Google Pay, Samsung Pay) or corporate phones connected to work systems. For example, in 2023, a vulnerability in Qualcommchips (used in 30% of Android smartphones) made it possible to bypass protection Secure Boot —and only a patch from January 2026 fixed the problem.

⚠️ Attention: If your smartphone is older than 2020 and the manufacturer has officially stopped supporting it (for example Huawei P30 or Xiaomi Mi 9), security updates stop coming out. In this case, consider alternatives: custom firmware (LineageOS) or switching to a new one. device.
📊 How often do you update the Android firmware?
Immediately after release
After 1-2 weeks
Only if bugs appear
I never update

2. New features: what do you lose by staying on the old version

Each major update Android brings not only fixes, but also new features. appeared: Android 14 (2023) appeared:

  • 📱 Adaptive notifications: prioritization of messages from contacts and applications based on your habits.
  • 🔒 Photo/video permissions: selection of specific images for application access (not the entire gallery).
  • 🎨 Themes with Generative AI: creating wallpaper based on a text query (available on Pixel 8 and Samsung Galaxy S24).
  • 🔋 Optimization batteries: The feature Adaptive Battery now takes into account charging habits (for example, if you always plug your phone in at night).

But not all functions are available on all devices. For example, “Now Playing” mode** (detection of music around) works only on Pixel and some models SonyA seamless updates (installation in the background without rebooting) are supported only on smartphones with section /system type A/B (for example, OnePlus 11 or Xiaomi 13).

Android version Key innovations Minimum requirements
Android 12 (2021) Design Material You, improved privacy (microphone/camera access indicator) 4 GB RAM, Treble-compatible kernel
Android 13 (2022) Language settings for each application split screen for all devices 4 GB RAM, support Project Mainline
Android 14 (2023) Generative AI for wallpaper, App Cloning mode** without root 6 GB RAM, chipset not older Snapdragon 865/Exynos 2100

To check which functions are available on your device, go to Settings → About phone → Android version and compare c official Google documentation (opens in a new tab).

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Before updating, check whether your model supports new features. For example, "Desk Mode"** (desktop when connected to a monitor) only works on Samsung DeX-compatible devices or Pixel with Android 13+.

3. Performance: will the smartphone speed up or not? on the contrary?

This is the most controversial point. Theoretically, new versions optimize resource consumption, but in practice the result depends on: Android optimize resource consumption, but in practice the result depends on:

  • 📱 Device age: smartphones of 2020–2021 (Snapdragon 765G, Exynos 990) often lose speed after upgrading to Android 13/14.
  • 🔄 Firmware quality: manufacturers like Xiaomi or Realme sin with “crude” updates with bugs.
  • 🗑️ Memory fullness: if less than 10% of the storage capacity is free, the system will slow down regardless of the version.

An example from real life: after updating to Android 13 owners Redmi Note 10 Pro complained about lags when opening the camera and overheating. The reason is unoptimized drivers for the chipset Snapdragon 732G. At the same time, Android 13 received a 12% increase in performance thanks to improved management of processor cores. Google Pixel 6 on the same Android 13 received a 12% increase in performance thanks to improved management of processor cores.

⚠️ Attention: If after the update the smartphone began to discharge 20-30% faster, check Settings → Battery → Usage batteries. Often the culprit is background processes of system applications (for example, Google Play Services), which re-index data after an upgrade. Solution: reset the cache in Settings → Storage → Cache data.
How to check the compatibility of your smartphone with the new version of Android?

1. Open Settings → About phone → Model and write down the device name.

2. Check the list of supported models on the manufacturer's website (section "Software updates")

3. If your model is in the list, but the update does not arrive, try manually through Settings → System → Update Software → Check updates.

4. For Samsung and Xiaomi the latest firmware versions can be found on the forums XDA Developers or 4PDA (but be careful with unofficial assemblies!).

4. Compatibility with applications: why older versions of Android become “outcasts”

Application developers focus on the latest versions Android, and over time, support for outdated firmware is reduced to zero. This is what awaits you if you do not update:

  • 🚫 Failure of banking applications: SberBank Online, Tinkoff And VTB require at least Android 9 (2018!). On older versions they are either not installed or block access to functions (for example, transfers by phone number).
  • 🎮 Games with errors: Genshin Impact, Call of Duty Mobile i PUBG optimized for Android 11+On older versions, crashes and graphics artifacts are possible. or refusal to launch.
  • 📸 Problems with social networks: Instagram and TikTok on Android 8 do not support Stories in high resolution, and Telegram voice chats 2.0 do not work.

Moreover, from August 1, 2026 Google Play stopped accepting updates for applications targeted at Android 10 and below. This means that even if the application is installed, it will no longer receive critical fixes (for example, for WhatsApp or Google Maps).

Application Minimum version of Android What does not work on older versions
SberBank Online Android 9 Biometric authorization, transfers via QR
WhatsApp Android 5.0 (but from 2026 - Android 8+) Voice messages in high quality, reactions to messages
Google Maps Android 10 AR navigation, offline maps with traffic updates

Back up your data via Settings → Google → Backup

Check free space (needs at least 3-5 GB)

Disable VPN (may block update servers)

Connect to Wi-Fi (updates weigh 1–3 GB)

The battery charge should be >50%-->

5. Bug fixing: when an update saves you from “glitches”

If your smartphone begins to behave strangely, it will reboot spontaneously, “slow down” when shooting video or lose connection - there is a high chance that a software bug is to blame. Manufacturers regularly release “hot” fixes for such problems. For example:

  • 📞 Samsung Galaxy S23: fixed bug with loss of sound in calls after updating to One UI 6.1 (March 2026).
  • 🎥 Xiaomi 13 Pro: fixed. “pink” color distortion when shooting in 4K@60fps (update from February 2026).
  • 🔋 Google Pixel 7: fixed rapid battery drain due to an error in Google Play Services (patch from January 2026).

How do you know that your problem is solved by the update? Check:

  1. Official release notes (for example, for Samsung they are published here).
  2. Forums (4PDA, Reddit) - look for topics mentioning your model and symptoms.
  3. Manufacturer's social networks (for example, Xiaomi often announces fixes in Telegramchannel).
⚠️ Attention: If the problem persists after the update, try resetting the network settings (Settings → System → Reset → Reset Wi-Fi, mobile network and Bluetooth settings). In 30% of cases, "glitches" are associated with configuration conflicts, and not with the firmware.

6. Support for new standards: 5G, Wi-Fi 6 and more

Updates Android often add support for modern technologies, even if the device’s hardware supports them. For example:

  • 📶 5G SA (Standalone): many 2020 smartphones (Samsung Galaxy S20, OnePlus 8) initially supported only 5G NSA (Non-Standalone). The firmware update added a full 5G SA, which increased Internet speed by 20-40%.
  • 🔗 Wi-Fi 6/6E: on Android 12+ there was optimization for new routers, reducing latency in games and streaming.
  • 🔊 Bluetooth LE Audio: The standard for wireless headphones with low power consumption (for example, Sony WF-1000XM5) requires Android 13+.

To check which standards your smartphone supports, use applications like Network Signal Guru (for mobile network) or WiFi Analyzer (for Wi-Fi). If the device does not “see” new networks, although it should, the outdated firmware is most likely to blame.

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Updating the firmware can “unlock” the hidden capabilities of your smartphone, even if the hardware supports them. For example, Samsung Galaxy A52 after upgrading to One UI 5.0 received support Wi-Fi 6, although the chipset Snapdragon 720G supported it initially.

7. When you should NOT update Android: 4 red flags

Despite all the advantages, there are situations when updating will do more harm than good. Refuse to upgrade if:

  • ⚠️ The device is older than 3 years and the manufacturer has not tested the firmware on your model (risk of “skipping”).
  • ⚠️ You are using custom software (LineageOS, Pixel Experience) - the official update may conflict with modifications.
  • ⚠️ The smartphone is critical for work (for example, a corporate phone with Knox or Android Enterprise), and there is no backup device.
  • ⚠️ The update weighs >2 GB, and you have slow Internet or limited traffic (better wait for the download via Wi-Fi).

Also beware of beta versions firmware - they often contain critical bugs. For example, in the beta version Android 14 for Pixel 7 was a bug due to which the phone rebooted when connecting headphones. If you still want to test the innovations, use a second device or create a backup via adb backup:

adb backup -apk -obb -shared -all -f /sdcard/backup.ab

And remember: if after the update the smartphone begins to work worse, you have 14 days (for most manufacturers) to roll back to the previous version via Settings → System → Software update → Rollback. After this period, you can return the old firmware only through fastboot or a service center.

FAQ: Frequently asked questions about updating Android

Is it possible to update Android via the mobile data rather than Wi-Fi?

Technically yes, but it is risky: updates weigh 1-3 GB, and if the connection is interrupted, the firmware may be damaged. In addition, many operators block downloading large files via the mobile network. If there is no other option, make sure that:

  • Battery charge >80%;
  • The signal is stable (at least 3-4 “sticks”);
  • Background restrictions are disabled (Settings → Mobile network → Limit data).
Why did some functions (for example, gestures or themes) disappear after the update?

This is due to the fact that manufacturers sometimes simplify the interface in new firmware versions. For example, in One UI 6.0 (Samsung) they removed the classic application menu, and in MIUI 14 (Xiaomi) some animations Return. old functions can be:

  • Through launchers (for example, Nova Launcher for gestures);
  • Through ADB commands (for example, enabling hidden settings);
  • Via Magisk modules (requires root).

Make a backup copy before experiments!

How to force check for updates if they do not arrive automatically?

Sometimes updates are delayed due to regional restrictions or server errors. Try:

  1. Go to Settings → System → Software update and click “Check for updates” 3-4 times in a row (sometimes “forced” works). check).
  2. Clear cache Google Play Services (Settings → Applications → Google Play Services → Storage → Clear cache).
  3. For Samsung: use the application Smart Switch on your PC for manual checking.
  4. For Xiaomi: download the firmware from official website and install via Settings → About phone → Software update → Three dots → Select firmware file.
Does the update erase data? How to save photos and contacts?

Official updates shouldn't delete user data, but failures do happen. To be on the safe side:

  1. Contact: synchronize with Google Account (Settings → Accounts → Google → Synchronization).
  2. Photo/video: use Google Photos (free up to 15 GB) or transfer to PC.
  3. Messages: export via SMS Backup & Restore (application in Play Market).
  4. Applications: the list of installed apps can be saved via Titanium Backup (requires root) or manually write down the names.

If the update is interrupted and the phone does not turn on, try recovery mode (Power + Volume Up) and select Wipe Cache Partition (does not erase data!).

Is it possible to remove the update and return to the old version of Android?

Yes, but with reservations:

  • Most smartphones have rollback window (10-14 days after the update). Look for the option in the Settings → System → Update. Software.
  • If the window has expired, you will need firmware via fastboot or Odin (for Samsung), which requires skills and is risky.
  • On some devices (for example, Google Pixel) can be used Android Flash Tool for rollback.

Important: a rollback will reset all data if a backup was not made!