How to manage Android updates: from automatic updates to manual firmware

Android updates are not just about new features and bug fixes, but also about the security of your device. According to statistics Google, more than 60% of vulnerabilities in smartphones are closed through regular system updates. However, not all users know how control this process: when it is worth updating immediately and when it is better to wait, how to return the old version if the new one works worse, or what to do if the device is “stuck” on the logo after the update.

In this article we will analyze all aspects of updating management - from basic settings to advanced ones methods like ADB sideload or working with custom firmware. You'll learn how to check whether your version of Android is up to date, why some devices receive updates later than others, and which smartphone models (for example, Google Pixel or Samsung Galaxy S23) support an extended update period of up to 7 years. We will also reveal the myths about “eternal beta versions” and explain why disabling automatic updates may be justified.

1. Why Android updates are important (and when you can skip them)

The main reason to update Android is security. Monthly patches close critical vulnerabilities that can be used to steal data or install malware. For example, vulnerability CVE-2023-4863 v WebView allowed hackers to execute arbitrary code through the browser - it was fixed only in October 2023. If your smartphone has not received updates after this date, it remains vulnerable.

The second priority is performance and compatibility. New versions of Android optimize work with modern applications. Thus, Android 14 reduced application launch time by 15% due to an improved caching mechanism. But there is a nuance here: if your smartphone was released 3+ years ago, the latest firmware may, on the contrary, slow down its performance due to increased hardware requirements.

• 🔒 Be sure to update: if security fixes are mentioned in the release notes (for example, Android Security Bulletin).
• ⚡ You can wait: if the update adds only cosmetic changes to the interface (for example, new animations in One UI 6.0).
• ⚠️ It’s better to skip: if your device is no longer supported by the manufacturer (for example, Xiaomi Redmi Note 8 after 2026 year).

⚠️ Attention: Manufacturers often hide the actual support period for devices. For example, Samsung promises 4 years of updates for flagships, but in practice some models Galaxy A-series receive updates for only 2 years. Check the information on the official website of yours. brands.

2. How to check the current version of Android and available updates

Before updating, make sure that your device generally supports new versions. To do this:

1. Open Settings → About phone (on some devices the path may be different, for example Settings → System → About device).
2. Find lines Android version and MIUI/One UI/ColorOS version (depends on the shell).
3. Compare with the latest available versions on the manufacturer's website. For example, for Google Pixel current firmware is published here.

To check for updates:

4. Go to Settings → System → Update system (to Samsung: Settings → Software update).
5. Click Checking for updates. If the update is available, the system will prompt you to download it.

3. Automatic vs. manual updates: what to choose

By default, most smartphones are set to automatic. downloading updates via Wi-Fi. This is convenient, but not always safe. For example, if you use root access (root) or custom recovery (TWRP), automatic update can lead to bootloop (loop reboot).

To manage this process:

• 📥 Enable automatic downloading: Settings → System → System update → Settings (⚙) → Automatic download. Samsung: Settings → Software update → Autoload.
• ⏱ Delay installation: In the same menu you can select the installation time (for example, at night).
• 🚫 Disable completely: On some devices (for example Xiaomi) this option is hidden in Settings → About phone → MIUI version (tap 7 times) → Additional update settings.

Manual updates give more control, but require attention. For example, before installation you should:

Check the battery charge (minimum 50%)|Connect to a stable Wi-Fi|Back up your data|Close all background applications|Disable VPN (may block update servers)

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⚠️ Attention: On devices with an unlocked bootloader (bootloader) automatic update can reset all settings to factory settings. Before updating, save the data and check if your custom firmware supports OTA updates.

4. How to update Android manually (via Recovery and ADB)

If automatic update does not work. (for example, due to an error "Failed to install the update"), you can install the firmware manually. There are three main methods:

Method 1: Through stock Recovery

Suitable for most smartphones (Samsung, Xiaomi, Motorola):

1. Download the official firmware from the manufacturer’s website (for example, for Samsung - via Samsung Members or samfw.com).
2. Place the file (usually with the extension .zip) in the root folder of the internal memory.
3. Turn off the phone and hold down the combination to enter Recovery (for example, Power + Volume Up for Pixel).
4. Select Apply update from ADB or Apply update from SD card (depending on the model).

Method 2: Via ADB Sideload

Universal method for devices with an unlocked bootloader:

1. Install Android SDK Platform-Tools on PC.
2. Connect your phone in mode Recovery and select Apply update from ADB.
3. Enter the command:

   adb sideload filename.zip

Method 3: Via Fastboot (for Google Pixel and some others)

Used for complete flashing devices:

1. Unpack the archive with the firmware and connect the phone in the mode Fastboot (Power + Volume Down).
2. Run the script flash-all.bat (Windows) or flash-all.sh (Linux/Mac).

5. How to roll back an Android update (downgrade)

If after the update your smartphone starts to slow down, overheats, or errors occur (for example, "The Camera application has stopped"), you can return the previous version. However, risky procedure:

• 🔄 Data loss: A rollback will reset the device to factory settings.
• 🔒 Blocking: Some manufacturers (for example, Samsung s Knox) may block possibility of downgrade.
• ⚠️ Bricks: On devices with A/B-partitions (for example, Pixel) an incorrect rollback will lead to hard brick.

Instructions for rollback:

1. Find the required firmware version on the forums (XDA Developers, 4PDA) or the official website.
2. Unlock the bootloader (if required) via fastboot oem unlock.
3. Flash the old version via Fastboot or Recovery (see section 4).
4. After installation, perform a reset via Wipe data/factory reset.

⚠️ Attention: On devices with Dynamic Partitions (entered c Android 10) rollback to a version below Android 9 is impossible without modifying the partition super.img. This requires advanced skills and can lead to loss of IMEI.

6. updates

Even official updates sometimes break functionality. Here are typical problems and their solutions:

adb shell pm install --downgrade path/to/apk

If the problem is not solved, try:

• 🔧 Reset settings: Settings → System → Reset settings (does not delete files, but resets application settings).
• 📱 Recovery via PC: Use proprietary utilities (Samsung Smart Switch, Xiaomi Flash Tool).
• 🛠 Manual flashing: If the device does not turn on, flash the full image via Fastboot.

7. Custom firmware: how to update without losing data

Users of custom firmware (LineageOS, Pixel Experience, crDroid) face additional difficulties when updating. The main rule: never update via stock OTA - this will lead to a failure:

1. Download a new firmware version from the official website (for example, LineageOS).
2. Check the list of changes (changelog) for compatibility with your device.
3. Make a backup copy via TWRP (select partitions Boot, System, Data).
4. Flash the firmware via TWRP without wipe (Install → Select ZIP → Swipe to confirm).
5. Update Magisk (if used) and modules.

For firmware based on Android 13+ you may need:

• 🔑 Update vendor i firmware: Download the latest files from XDA.
• 🛡 Disable AVB 2.0: If the firmware does not load, add a flag --disable-verity to TWRP.

• 🌐 Change the region:
  1. Install. VPN with servers in Germany or USA (for example, ProtonVPN).
  2. Clear data Google Play Services and Framework.
  3. Check for updates again.
• 📡 Use alternative servers: On Samsung you can manually select an update server through the app Samsung Members.
• 🔄 Reset Google Services: Enter in your phone dialer:

  ##2432546##

  (does not work on all devices).

For devices Google Pixel there is another way - participation in Android Beta app:

1. Register the device on the site apps.
2. After 24 hours, check for updates - usually beta versions arrive before stable ones.
3. To return to the stable branch, unsubscribe from the app and wait for the OTA update.

⚠️ Attention: Accelerating the receipt of updates by changing the region or VPN may lead to unstable operation of some functions (for example, Google Pay or banking applications). After installing the update, return the region settings to their original state.

💡

If your device is older than 2 years, check whether it has been transferred to quarterly security updates. For example, Samsung Galaxy S20 in 2026. updates every 3 months, not monthly.

FAQ: Frequently asked questions about Android updates

Is it possible to update Android via the mobile data?
Technically yes, but it not recommendedUpdates weigh 1-3 GB, and if the connection is lost, the file. may be damaged, which will lead to an installation error. In addition, operators may block downloading large files through the mobile network. If there is no other option, make sure that:
• You have an unlimited tariff or enough gigabytes.
• The signal is stable (it is better to use 4G/5G, and not 3G).
• In the update settings, the option is enabled Download via mobile network.
Why does my device not receive updates, although they have been released?

There are several reasons:

• Manufacturer limitation: For example, Xiaomi pauses updates for devices with an unlocked bootloader.
• Regional restrictions: Some updates are released first in Europe, and then in other regions.
• Problems with servers: Check the status of Google services here.
• Modified firmware: If you deleted system applications or changed build.prop, OTA updates may not come.

Solution: try manual installation (see section 4) or contact manufacturer support.

What are "incremental updates" and why are they faster?

Incremental (delta) updates only download changed files, and not the entire firmware. For example, if the new version weighs 2 GB, and the changes affected only 200 MB, you will download exactly these 200 MB. This saves traffic and time.

Supported on devices with Android 10+ and file system ext4/f2fs. enable:

Settings → System → System update → Settings (⚙) → Use incremental updates

Is it possible to disable updates for specific applications?

Yes, but not through system settings Options:

• For system applications: Disable auto-update in Google Play Market:
  1. Open the application page in Play Market.
  2. Click on the three dots → Disable auto-update.

For all applications: Disable Auto-update applications in settings Play Market (Settings → Network settings → Auto-update applications → Do not update automatically).

Via ADB (for advanced):

adb shell pm disable-user --user 0 com.android.vending

(disables Play Market completely).