back to top
Menu
How To

How to Update Custom ROM in Android

By AndroidGreek Team
Follow Us
placeholder text

Topics

In this comprehensive guide, we will delve into five distinctive approaches to updating the custom ROM on your Android device. The open-source ecosystem of Android presents a plethora of modifications and tailor-made enhancements, making it a beloved choice among technology enthusiasts. Whether you aim to incorporate a customized recovery, attain administrative privileges through the rooting process utilizing Magisk, or install personalized firmware, the realm of possibilities knows no bounds.

A myriad of customized ROMs is readily available, including HavocOS boasting an extensive range of customization options, Pixel Experience offering features reminiscent of Google’s Pixel, and dependable AOSP ROMs like ArrowOS. These ROMs bring forth a multitude of advantages, encompassing an impressive array of novel features.

Beyond the additional features, personalized ROMs also guarantee continuous receipt of Android OS updates, even after the official update cycle ceases. Certain popular devices receive support for up to 5 years, thanks to the consistent efforts of dedicated developers who release regular updates. Depending on your personal preferences, you have the flexibility to choose between daily updates via nightly schedules or stable updates at regular intervals.

However, many users face confusion when it comes to updating custom ROMs due to the lack of a straightforward approach. If you find yourself uncertain about which method to choose, this guide is here to help. We will walk you through five different methods that you can follow to update your custom ROM. Let’s get started!

Method 1: Via OTA Update to Update Custom ROM

The easiest and most preferred way to update custom ROMs is through OTA (over-the-air) updates. Simply go to Settings > System, and download and install any pending updates. After restarting your device, it will boot up with the newly installed OS. However, not all custom ROMs support OTA updates. If that’s the case, you can explore the alternative methods below.

Method 2: Via Custom ROM’s Recovery to Update Custom ROM

Many custom ROMs now come with their custom recovery, such as Lineage Recovery or Pixel Experience Recovery. You can use a custom recovery to update your ROM. Here’s how:

  1. Download the ROM update file and transfer it to the platform-tools folder on your device. Rename it to rom.zip.
  2. Open the platform tools folder on your device, type CMD in the address bar, and press Enter to launch the Command Prompt.
  3. In the Command Prompt window, enter the following command to boot your device into recovery mode: adb reboot recovery.
  4. In recovery mode, navigate to Apply Update > Apply from ADB. Your device will enter ADB sideload mode.
  5. To flash the updated ROM file, enter the following command in the Command Prompt: adb sideload update.zip.
  6. Once the flashing process is complete, select Reboot System Now to restart your device with the updated OS.

Method 3: Via Fastboot Command to Update Custom ROM

If your ROM update file is in the form of a flashable ZIP, you can use the Fastboot command to update your custom ROM. Follow these steps.

  1. Ensure that you have the necessary USB drivers installed on your computer for your Android device.
  2. Power off your device and boot it into Fastboot mode. The method to enter Fastboot mode varies depending on the device, so you may need to search for specific instructions for your device model.
  3. Connect your device to the computer using a USB cable.
  4. Open a Command Prompt or Terminal window on your computer and navigate to the folder where you have the Fastboot tool installed.
  5. Verify that your device is recognized by the computer by entering the following command:
    • Fastboot devices
    • If your device is listed, you’re ready to proceed.
  6. Flash the ROM update file by entering the following command:
    • Fastboot update rom.zip 
    • (Replace rom.zip with the actual name of your ROM update file.).
  7. Wait for the flashing process to complete.
  8. Once flashing is done, reboot your device by entering the command: fastboot reboot.

Method 4: Via TWRP Recovery to Update Custom ROM

TWRP (Team Win Recovery Project) is a popular custom recovery that provides a graphical interface for installing custom ROMs and other modifications. If you have TWRP installed on your device, you can use it to update your custom ROM. Here’s how:

  1. Download the ROM update file and transfer it to your device’s internal storage or an external SD card.
  2. Power off your device.
  3. Boot your device into TWRP recovery mode. The method to enter recovery mode varies depending on the device, but it usually involves holding specific buttons during the boot process. Search for instructions for your specific device if needed.
  4. In TWRP recovery, select the “Install” option.
  5. Navigate to the location where you transferred the ROM update file and select it.
  6. Swipe the “Swipe to Confirm Flash” button to start the ROM flashing process.
  7. Wait for the flashing process to complete.
  8. Once flashing is done, select the “Reboot System” option to restart your device with the updated ROM.

Method 5: Via ADB Sideload of TWRP to Update Custom ROM

If you have TWRP recovery installed on your device and prefer using ADB (Android Debug Bridge) for the ROM update, you can follow these steps:

  1. Download the ROM update file to your computer.
  2. Boot your device into TWRP recovery mode.
  3. Connect your device to the computer using a USB cable.
  4. On your computer, open a Command Prompt or Terminal window and navigate to the folder where you have the ADB tool installed.
  5. In the Command Prompt or Terminal window, enter the following command to sideload the ROM update:
    • adb sideload rom.zip 
    • (Replace rom.zip with the actual name of your ROM update file.).
  6. Wait for the sideload process to complete.
  7. Once the sideload is done, select the “Reboot System” option in TWRP to restart your device with the updated ROM.

That’s it! These are five different methods you can use to update your custom ROM on Android. Choose the method that suits your preferences and device compatibility. Remember to back up your important data before performing any ROM update to avoid data loss. Enjoy the latest features and improvements offered by the updated custom ROM on your Android device!

FAQ: Updating the Custom ROM on Android:

  1. Q: What is a custom ROM?
    • A custom ROM is a modified version of the Android operating system developed by third-party developers or enthusiasts. It offers additional features and customization options and often provides a more up-to-date Android version than the stock ROM provided by the device manufacturer.
  2. Q: Why should I update my custom ROM?
    • Updating your custom ROM allows you to benefit from the latest features, security patches, bug fixes, and performance enhancements offered by the ROM developer community. It can breathe new life into your device and provide a more optimized and personalized Android experience.
  3. Q: Can I update my custom ROM without losing data?
    • In most cases, updating a custom ROM requires wiping the data partition, which means you will lose your data. It’s essential to back up your important files, apps, and settings before proceeding with a ROM update. Backup methods may vary depending on the specific recovery or backup tools available for your device.
  4. Q: Are there any risks involved in updating a custom ROM?
    • A: Yes, there are risks involved when updating a custom ROM. The ROM update may contain bugs or compatibility issues, which could lead to unstable or non-functional features. Additionally, improper installation or flashing of the ROM could potentially result in a bricked device. Proceed with caution and follow the instructions carefully.
  5. Q: Can I revert to my previous custom ROM if I don’t like the update?
    • A: Yes, if you have a backup of your previous custom ROM or the ROM developer provides rollback options, you can revert to the previous ROM version. However, it’s important to note that reverting to a previous ROM may involve wiping data and can potentially result in data loss. Always create a backup before making any changes to your ROM.
  6. Q: How often should I update my custom ROM?
    • A: The frequency of custom ROM updates depends on the ROM developer’s release schedule and the specific ROM you are using. Some ROMs receive regular updates, while others may have longer intervals between updates. It’s good practice to check for updates periodically and evaluate if the new features and improvements align with your needs.
  7. Q: Is it necessary to root my device to update a custom ROM?
    • A: Generally, yes. Most custom ROMs require a rooted device to install and update successfully. Rooting allows you to gain administrative privileges and access system-level functions on your Android device. However, there may be certain ROMs or installation methods that don’t require root access. Always refer to the specific ROM documentation or installation instructions for accurate information.