Rolling back Android to a previous version: 5 working methods (without the risk of “bricking”)

Have you updated Android to the latest version, but the new interface is slow, applications crash, and the battery runs out in half a day? Or maybe a critical application no longer supports the latest firmware? Rolling back to a previous version Android is a real solution, but with pitfalls. Unlike iOS, where downgrading blocks Apple, on Android this is possible, but requires preparation and strict adherence to instructions.

In this article - 5 proven methods return the old version of the firmware, from official methods (for Samsung, Xiaomi, Google Pixel) to universal solutions through ADB and custom recovery. We will analyze when a rollback is justified, and when it is better to look for alternatives, and will dwell on critical errors that will turn your smartphone into a “brick” in 10 secondsin detail. If you are not ready to take risks, at the end of the article there is a section with safe alternatives to downgrading.

When to return to the old version of Android

Rolling back the firmware is not a panacea, but a necessary measure. Before you begin, evaluate whether the risk is worth it. Here 3 good reasons return the old version:

• 🔋 Critical battery discharge: The new version of Android began to consume battery 2-3 times faster (for example, after updating to Android 14 on Samsung Galaxy S21 many users complain about 4-5 hours of work instead of the usual 10–12).
• 🐢 Lags and brakes: Performance has dropped so much that the smartphone cannot handle even basic tasks (a common problem on budget devices after major updates).
• 🚫 Incompatibility of critical applications: Banking apps, corporate software or games have stopped working (for example, some versions Sberbank Online refuse to run on Android 13+).

But there are situations when a rollback will not help or will aggravate the problems:

• 🔒 Locking the bootloader: On some devices (for example, Huawei or Motorola), the manufacturer blocks the possibility of downgrading at the hardware level.
• 📱 Outdated hardware: If the smartphone was released before 2018, the old the firmware may not support modern security standards (for example, Android 9 will not receive updates for TLS 1.3, which will make the use of banking applications dangerous).
• ⚠️ Data loss: When you roll back through the firmware or reset, all user files, settings and applications will be erased (if you do not backup in advance).

⚠️ Attention: On devices with Dynamic Partition (entered in Android 10), rolling back to a version below may lead to the partition not working. /dataCheck the partition structure via fastboot getvar all before starting.

Preparing for a rollback: 7 mandatory steps

Before reverting to the old version, follow these steps. Skipping at least one item can lead to data loss or device failure:

Make a backup of all data (photos, contacts, SMS)

Write down IMEI and serial number device

Check the model and bootloader version (in fastboot or Settings → About phone)

Download the correct firmware (only for your model and region!)

Make sure the battery is at least charged by 70%. data-i="91">backup

Prepare a USB cable (original, undamaged)

Disable all antiviruses and firewalls on PC-->

Pay special attention backup. Use:

• 📁 Local copy: Transfer files to a PC or external drive (photos, videos, documents).
• ☁️ Cloud services: Synchronize contacts, notes and passwords via Google Account, Samsung Cloud or Mi Cloud.
• 🔄 Titanium Backup (for root): Save application data and system settings (root access required).

To determine the exact firmware model:

1. Go to Settings → About phone → Software information.
2. Write down the parameters: Build number, Android version, Kernel version.
3. For Samsung check CSC (regional code) - it must match the firmware.

Samsung

Xiaomi/Redmi/Poco

Google Pixel

OnePlus

Huawei/Honor

Other-->

Method 1: Rollback through official software (for Samsung, Xiaomi, Google)

Some manufacturers allow you to return old firmware through proprietary utilities. This is the safest method, but does not work on all devices.

For Samsung (via Odin)

The tool Odin is designed for flashing devices Samsung. Suitable for most models, except for new flagships with locking VBMETA.

1. Download Odin (version 3.14.4) and firmware in format .tar.md5 from the site SamMobile or Frija.
2. Turn off the phone and switch to mode Download Mode: hold Volume down + Power + Bixby (on new models - Volume up + Volume down + USB cable).
3. Connect the device to PC, start Odin and add the firmware file to the field AP.
4. Uncheck the Auto Reboot and click Start.
5. After completion, manually reboot the phone in Recovery Mode (Volume up + Power) and do Wipe Data/Factory Reset.

For Xiaomi (via Mi Flash)

Xiaomi blocks downgrade on some models (for example, Redmi Note 10 Pro s MIUI 14). If there is no blocking, use Mi Flash Tool:

1. Download the firmware in format .tgz from the site Xiaomi Firmware Updater.
2. Unpack the archive and run Mi Flash as administrator.
3. Switch the phone to mode Fastboot (Volume down + Power).
4. In Mi Flash select the folder with the firmware and press Refresh, then Flash.
5. After flashing the firmware, reset via Recovery.

For Google Pixel (via Android Flash Tool)

Google officially supports downgrade via Android Flash Tool (works in the browser Chrome):

1. Connect Pixel to the PC and enable USB debugging.
2. Select your model and the desired version of Android in the tool.
3. Click Install and follow the instructions (the device will reboot a few times times).

⚠️ Attention: On Pixel 6/7/8 with Tensorprocessor, a rollback below Android 12 can lead to inoperability of the 5G module. Check compatibility on official website.

Method 2: Rollback via ADB Sideload (universal method)

If the manufacturer does not provide official tools, you can use ADB SideloadThis method works on most devices with an unlocked bootloader.

You will need:

• 🖥️ PC with installed ADB and Fastboot (you can download in Android SDK Platform Tools).
• 📱 Firmware in format .zip for your model (look at XDA Developers or 4PDA).
• 🔌 Original USB cable (Chinese cables may not transfer data to fastboot).

Step-by-step guide:

1. Turn on USB debugging v Settings → For developers (if the section is hidden, tap 7 times on Build number v About the phone).
2. Connect the phone to the PC and check the connection with the command:

   adb devices

   The name of your device should appear.

3. Download the firmware and place it in the folder with ADB (for example, C:\platform-tools).
4. Reboot the phone in Recovery Mode (usually Volume up + Power).
5. In recovery, select Apply update → Apply from ADB.
6. On the PC, run the command:

   adb sideload file_name.zip

7. Wait for completion (do not disconnect the cable!). system.

⚠️ Attention: On devices with Dynamic Partition (for example, Pixel 4 XL or OnePlus 8 Pro) firmware via ADB Sideload may lead to an error INVALID_SPARSE_FILEIn this case, use fastboot with a full package of images. (.img).

Method 3: Firmware via Fastboot (for advanced users)

Method fastboot suitable for devices with an unlocked bootloader and a full firmware package in the format .img. This is the most flexible method, but requires care.

Preparation:

• 🔓 Unlock the bootloader (instructions for Samsung, Xiaomi and Pixel are different).
• 📦 Download the full firmware (for example factory image for Pixel or fastboot ROM for Xiaomi).
• 🛠️ Install Fastboot and check the connection:

  fastboot devices

Firmware process:

1. Unpack the archive with the firmware into the folder with fastboot.
2. Switch the phone to mode fastboot:

   adb reboot bootloader

3. For Pixel and OnePlus use script flash-all.bat (run it by double-clicking).
4. For Xiaomi flash each section manually:

   fastboot flash boot boot.img
   fastboot flash system system.img
   fastboot flash vendor vendor.img
   fastboot flash dtbo dtbo.img

5. After completion, do:

   fastboot reboot

Method 4: Using custom Recovery (TWRP)

If on your device installed TWRP (or another custom recovery), a rollback can be performed through it. This method is suitable for firmware in the format .zip and allows you to save some of the data (if not done wipe).

Instructions:

1. Download the firmware in the format .zip (for example, from XDA Developers or 4PDA).
2. Transfer the file to SD card or internal memory (if recovery supports MTP).
3. Reboot into TWRP (Volume up + Power).
4. Make a backup of the current firmware (Backup → Select Partitions → Swipe to Backup).
5. Select Install, find the downloaded one .zip and confirm installation.
6. After flashing, execute Wipe → Format Data (if required) and reboot.

Advantages of the method:

• ✅ Possibility of selective backup and recovery.
• ✅ Support for unofficial firmware (for example, LineageOS or Pixel Experience).
• ✅ Saving data during a careful rollback (without format data).

Disadvantages:

• ❌ Requires preliminary installation TWRP (on new devices this may be difficult due to AVB and DM-Verity).
• ❌ Risk of losing data if incorrect wipe.
• ❌ Not all firmware supports installation via .zip (for example, stock firmware Samsung require .tar.md5).

Method 5: Rollback via OTA package (if available)

Some manufacturers allow you to roll back to the previous version via OTA-update (for example, Google Pixel or Nothing Phone). This method is the safest, but it rarely works.

How to check availability:

1. Go to Settings → System → System update.
2. Tap on the ⚙️ (settings) icon and select Delete latest update (if the option is available).
3. Confirm the rollback and wait reboot.

Limitations:

• 🕒 Works only during 60 days after the update (after which the OTA package is removed from the device).
• 📱 Not available on all devices (for example, Samsung and Xiaomi do not support this method).
• 🔄 After a rollback, automatic update may offer a new one again version.

⚠️ Attention: On Pixel after a rollback via OTA, the bootloader lock may work (OEM Lock). To avoid this, before rolling back, unlock the bootloader with the command fastboot flashing unlock.

What to do if the rollback was unsuccessful

If, after trying to return the old version of Android, the device:

• 🔄 Stuck on the logo (bootloop),
• 🚫 Does not turn on (black screen),
• ⚠️ Shows an error (for example, DM-Verity corruption),

try these steps:

1. Reset via Recovery

If the phone somehow responds to the buttons:

1. Hold Volume up + Power to enter Recovery.
2. Select Wipe Data/Factory Reset.
3. Reboot device.

2. Flashing via Fastboot

If the reset did not help:

1. Connect the phone to the PC in the mode fastboot.
2. Flash full stock firmware for your model (not only system, but also boot, vendor, dtbo).
3. Use the flag --force for forced recording:

   fastboot flash --force system system.img

3. Restore via EDL (emergency mode)

If the device is not detected in fastboot, it can help EDL Mode (Emergency Download Mode). This method requires:

• 🔧 A special cable (EDL cable) or shorting the contacts on the board.
• 💻 apps QFil (for Qualcomm) or SP Flash Tool (for Mediatek).
• 📄 Firmware file in the format .mbn or .bin.

Instructions for Qualcomm:

1. Connect the phone to EDL (usually Volume up + Volume down + USB cable).
2. Run QFil, select the firmware and press Download.
3. Wait for completion (the process may take 10–15 minutes).

adb reboot edl

Alternatives to rollback: when it is better not to take risks

Rolling back Android is a last resort. In most cases, the problem can be solved in less risky ways:

• 🔄 Reset to factory settings: Often lags and bugs disappear after complete wipe (but not always).
• 🛠️ Disable new functions: For example, on Android 13+ you can disable Predictive Back or Material You in the developer settings.
• 📱 Using Launcher: Install Nova Launcher or Lawnchairto return the familiar interface.
• 🔋 Battery optimization: Disable the background activity of unnecessary applications in Settings → Battery.
• 🔒 Installing GSI firmware: Generic System Image (for example, LineageOS) can work more stable than stock.

If the problem is application incompatibility:

• Check whether there are alternative versions (for example, Google Play alternative versions (eg Sberbank Online for Sberbank Online data-i="398">to isolate problematic applications in a separate profile. Android 10).
• Install the APK of the old version from the site APKMirror (but be careful with safety!).
• Use Island or Shelter to isolate problematic applications in a separate profile.

FAQ: Frequently asked questions about Android rollback