Android updates are not just new features, but also critical security fixes, performance optimizations, and support for modern applications. However, many users are faced with a situation where the smartphone stubbornly refuses to install the latest firmware version: the system writes “updates are not available,” the download gets stuck at 0%, or the device does not check for updates at all. The reasons may lie in the regional restrictions of the manufacturer, server failures, lack of memory, or even an artificial delay in updates for specific models.

In this article we will look at 7 working methods to force an Android update from standard methods through settings to manual firmware via Fastboot i ADB. You'll learn how to bypass regional locks, what to do if boot errors occur, and how to safely install firmware manually if automatic updating is not possible. We will pay special attention to models Samsung, Xiaomi, Google Pixel and devices on pure Android, since each brand has its own nuances.

We warn you in advance: some methods require unlocking the bootloader and can lead to data loss or voiding the warranty. If you are not sure of your actions, it is better to wait for the official update or contact the service center.

1. Checking current updates through the standard menu

Before resorting to radical measures, make sure that the problem cannot be solved by basic actions. Often, users simply do not know where to look for updates or how to launch them correctly.

Open the menu Settings → System → System update (on some devices the path may differ: Settings → About phone → Software update). Click the button "Checking for updates". If the system says that the device is updated, try the following steps:

  • 🔄 Reboot your smartphone and repeat the check - sometimes Google servers or manufacturer are temporarily unavailable.
  • 📶 Connect to another Wi-Fi network or use the mobile data (on some devices, updates are blocked when connected via VPN).
  • 🗃️ Free up memory space —downloading the update requires at least 2–3 GB of free space.
  • ⏳ Wait 24–48 hours —manufacturers sometimes roll out updates in waves across regions.

If after these steps the update still does not appear, proceed to the next method. Please note: on some devices (for example, Samsung Galaxy with firmware One UI) it may be necessary several checks in a row — the system sometimes “forgets” to show available updates after the first request.

📊 How often do you do you update the firmware on your smartphone?
Immediately after release
After 1–2 months
Only if problems arise
I never update

2. Forced check for updates through service codes

Smartphone manufacturers often hide additional update functions behind service codes (USSD commands). These combinations allow you to manually initiate an update check, bypassing the standard menu. Important: codes do not work on all devices and may differ depending on the model and region.

Here are the most universal combinations:

Manufacturer Code for checking for updates Additional functions
Samsung ##2432546## Checking the firmware version and available updates
Xiaomi/Redmi/Poco ##583## Information about the MIUI version and forced synchronization with servers
Google Pixel ##2432546## or ##7465625## Checking the Android version and OTA update status
Huawei/Honor ##2846579## → ProjectMenu → Software Upgrade Manually starting the check and resetting the cache updates

To use the code:

  1. Open the application "Phone" (dialer).
  2. Enter a combination of characters without spaces.
  3. If the code worked, you will see a menu with an option Check for updates or similar.
  4. Click on it and wait for the result.
⚠️ Attention: On some devices (especially Samsung i Xiaomi) after entering the code, a menu may appear with a warning about test mode. Do not change other settings in this menu - this may lead to unstable operation of the smartphone.

If the service codes do not work, this means that the manufacturer has blocked them for your model or region. In this case, proceed to the next method.

3. Update via PC: official utilities of manufacturers

If the smartphone refuses to update “over the air” (OTA), you can try installing the firmware via a computer. Most major manufacturers offer official forced update utilities that bypass regional restrictions and OTA glitches. Here are the most popular tools: A device utility that automatically finds and installs the latest firmware. Supports data recovery after a reset.

Here are the most popular tools:

  • 🖥️ Samsung Smart Switch - utility for devices Galaxy, which automatically finds and installs the latest firmware. Supports data recovery after reset.
  • 🖥️ Xiaomi Mi Flash Tool - a app for flashing devices Xiaomi, Redmi i Poco in manual or automatic mode. Requires unlocking the bootloader.
  • 🖥️ Huawei HiSuite - official software for updating smartphones Huawei i Honor. Can restore the system after failures.
  • 🖥️ LG Bridge —a utility for devices LG, supports forced installation of firmware via KDZfiles.

Let's look at the process using an example Samsung Smart Switch:

  1. Download and install Smart Switch on your PC.
  2. Connect your smartphone to the computer via the original USB cable (important!)
  3. Run the app and wait until it detects your device.
  4. Click Update → Update software.
  5. If a new version is available, follow the instructions on the screen. Do not disconnect cable until the process is completed!
⚠️ Attention: When updating via PC Samsung Smart Switch it may offer to reset the settings to factory settings. If you agree - make a backup copy of your data in advance! Also make sure that the latest drivers for your device are installed on your PC.

For devices Xiaomi the process is more complicated - you will need to unlock the bootloader through Mi Unlock Tool and use Mi Flash Tool with the correctly selected firmware for your model. We will discuss detailed instructions for each brand below.

Download the manufacturer's official utility|

Install drivers for your smartphone|

Make a backup copy of your data|

Charge the phone to at least 50%|

Use original USB cable-->

4. Manual update via Recovery Mode (for experienced users)

If standard methods do not work, you can try installing the update via recovery mode (Recovery Mode). This method is suitable for devices that support installing OTA-zip files manually. Important: the method requires unlocked bootloader on some models (for example, Xiaomi or Google Pixel).

Here are step-by-step guide:

  1. Download the correct firmware for your model from the manufacturer's official website. Usually this is a file with the extension .zip (for example, update.zip for Xiaomi).
  2. Move the file to root folder of internal memory smartphone (not folders!).
  3. Turn off the device.
  4. Hold the button combination to enter Recovery Mode:
    • Samsung: Power + Volume Up + Bixby (hold 10–15 sec)
    • Xiaomi/Redmi: Power + Volume Up
    • Google Pixel: Power + Volume Down → then select Recovery Mode
  • In the menu Recovery select Apply update from ADB or Apply update from SD card (depending on the model).
  • Specify the path to the downloaded file and confirm the installation.
  • After completion, select Reboot system now.

    • If the menu Recovery there is no option to install the update, then your device does not support this method. In this case, you will have to use Fastboot or ADB (more on this below).

    ⚠️ Attention: Some manufacturers (for example, Samsung) block the installation of firmware via Recovery, if the device is not rooted. In this case, an attempt to update may result in an error E: signature verification failed. The solution is to use official utilities (see section 3).

    On devices with a locked bootloader (for example, most smartphones Samsung i Huawei), installing the firmware via Recovery Mode can lead to a "brick" (system breakdown). Before using this method, make sure that your model supports manual flashing without unlocking.

    5. Update via ADB Sideload (for advanced users)

    If the standard one Recovery Mode does not support firmware installation, you can use ADB Sideload a method that allows you to download and install updates via the PC command line. This method works on most devices with an unlocked bootloader, including some models Google Pixel, OnePlus and some models Xiaomi.

    You will need:

    • 🖥️ A computer with ADB and Fastboot installed data-i="183">📱 USB cable (preferably original). ADB and Fastboot.
    • 📱 USB cable (preferably original).
    • 📄 Official OTA-zip firmware file for your model.

    Instructions:

    1. Download the correct firmware (for example, from site Google for Pixel or Xiaomi for MIUI).
    2. Connect your smartphone to the PC and enable USB debugging in the developer settings (Settings → About phone → Build number (press 7 times) → For developers → USB debugging).
    3. Download device in Recovery Mode (see combinations in section 4).
    4. In the menu Recovery select Apply update from ADB.
    5. On the PC, open the command line (Win + R → enter cmd) and go to the folder with ADB:
    cd C:\platform-tools

    adb devices

    Make sure that the device is detected (its serial number should appear). Then enter the command to install the firmware:

    adb sideload filename.zip

    The process will take 5-15 minutes. After completion, select Reboot system now.

    ⚠️ Attention: If during ADB Sideload an error appears Total xfer: 0.00xcheck:
    • The USB connection is correct (try another port).
    • Availability of drivers ADB on the PC.
    • Integrity of the downloaded firmware file (check the hash sum).

    This method is suitable for devices that do not support standard installation via Recovery, but have an unlocked bootloader For Samsung and Huawei with a locked bootloader ADB Sideload usually does not work - use the official utilities (section 3).

    💡

    If, after updating via ADB, the smartphone is stuck on the logo, try resetting the cache: in Recovery Mode select Wipe cache partition. This will not delete your data, but may solve the loading problem.

    6. Firmware via Fastboot (for experienced users)

    The most radical, but also the most reliable method is full firmware via Fastboot. This method is suitable if:

    • The device does not turn on or is stuck on the logo.
    • Other update methods did not work.
    • Are you ready for full data reset.

    For firmware via Fastboot you will need:

    • 🖥️ PC with installed ADB and Fastboot.
    • 📱 Unlocked bootloader (for most brands, except Google Pixel and some Xiaomi).
    • 📄 Official firmware in format .img or .tgz (for example, factory images for Pixel).

    Example firmware for Google Pixel:

    1. Download factory image for your model from the official Google website.
    2. Unpack the archive into a folder with platform-tools.
    3. Boot the device into Fastboot Mode:
      • Turn off the smartphone.
      • Hold Power + Volume Down (for Pixel).
  • Connect the device to the PC and check its detection:
    • fastboot devices

    If the device is detected, run the firmware script:

    flash-all.bat

    For Xiaomi the process is more complicated - you will need to use Mi Flash Tool s correctly selected firmware (Fastboot ROM). Detailed instructions for each model can be found on the forums. data-i="259">, which voids the warranty and blocks some functions (for example, XDA Developers.

    ⚠️ Attention: Firmware via Fastboot deletes all data from your device! Also on some models (for example, Samsung) this method may trigger the flag KNOX, which will void the warranty and block some features (such as Samsung Pay).

    If you are not sure of your actions, it is better to contact a service center. Incorrect firmware can turn your smartphone into a “brick.”

    7. Solving common errors when updating

    Even if you did everything correctly, the update process may fail. Let's look at the most common problems and their solutions:

    Error Cause Solution
    Error 7 (when installed via Recovery) Firmware incompatibility with the device or modified system Download the correct firmware version or return to stock software
    Couldn't verify update package Corrupted firmware file or incorrect signature Check the hash of the file or download it again
    E: footprint is wrong The firmware is intended for a different model or region Find the firmware specifically for your device (check Model Number in Settings → About phone)
    Stuck on the logo after updates Data conflict or incomplete installation Reset the cache to Recovery Mode or perform a factory reset

    If none of the methods helped, your device may be is no longer supported by the manufacturerIn this case, you can. consider installing custom firmware (for example, LineageOS), but this requires unlocking the bootloader and experience with ADB/Fastboot.

    ⚠️ Attention: On some devices (for example, Samsung Galaxy c Exynos-processors), attempting to install unofficial firmware may lead to hardware blocking of the bootloader (hard brick). Before experiments, check compatibility on thematic forums.
    💡

    If the smartphone stops turning on after an unsuccessful update, try booting into Recovery Mode and execute Wipe data/factory reset. In 80% of cases, this restores functionality, but deletes all data.

    FAQ: Frequently asked questions about updating Android

    My smartphone says “Updates are not available,” but I know that they are available?

    Possible reasons:

    • Regional restrictions (the manufacturer has not yet released an update for your country Solution: use VPN or official utilities (for example, Smart Switch for Samsung).
    • The manufacturer's servers are overloaded. Solution: wait 1-2 days and repeat the check.
    • The device has been modified (root, custom recovery). Solution: go back to stock firmware.
    Is it possible to roll back an Android update if the new version works poorly?

    Technically yes, but it is difficult and risky:

    • For most devices you will need full flashing via Fastboot or Odion (for Samsung).
    • On some models (for example, Google Pixel) you can install the previous version via Android Flash Tool, but this will reset everything data.
    • Rolling back can lead to problems with the operation of applications, since they are optimized for the new version of Android.

    We recommend that before rolling back you make a backup copy via ADB Backup or Titanium Backup (root required).

    Why does the battery drain faster after the update?

    This is normal in the first 2-3 days after the update. Reasons:

    • The system indexes files and optimizes applications.
    • New features (for example, improved animation in Android 12+) consume more resources.
    • Background processes (for example, Google Play Services) are updated.

    Solutions:

    • Let the smartphone “get used” to the new firmware (wait 3–5 days).
    • Check the battery settings: Settings → Battery → Adaptive battery (enable).
    • Update all applications in Google Play.
    Is it possible update Android on unofficially supported devices (for example, on old smartphones)?

    Yes, but with reservations:

    • For many older devices (for example, Samsung Galaxy S5 or Xiaomi Redmi Note 3) exist custom firmware based on new versions of Android (for example, LineageOS 20 based on Android 13).
    • You will need to unlock the bootloader and install TWRP Recovery.
    • Not all functions may work correctly (for example, camera or NFC).

    We recommend studying the topics on XDA Developers for your model before installation.

    How do I know if my smartphone supports the new update?

    Check official sources:

    You can also use services like GSMArena, which indicates the latest version of Android for each model.