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Rooting Samsung Galaxy A55 (Android 14) – Step-by-Step Guide

Rooting your Samsung Galaxy A55 (Android 14, Linux kernel 6.1.93) can unlock powerful features and customizations, but it must be done carefully. This guide will walk you through the entire process – from preparation and bootloader unlocking to flashing a Magisk-patched firmware with Odin, and finally verifying root access. Follow each step closely and read all precautions, as mistakes can void your warranty or even brick your device (How to Root Samsung Galaxy A55 5G: Tips - Gsm-Solution.Com ).

Prerequisites and Backup

Before beginning the root process, ensure the following prerequisites are met:

Required Tools and Files

Make sure to download or prepare the following tools and files before proceeding:

  • Official Samsung Firmware for the Galaxy A55 (Android 14) – specifically the firmware that matches your device model and region. You will need the firmware’s AP file to patch with Magisk. You can download the full firmware by searching your model number on sites like SamFw or using tools like Frija or SamFirm (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS) (Installation | Magisk).

  • Magisk App – the latest Magisk APK (from the official GitHub). This will be used to patch the firmware with root (How to Root Samsung Galaxy A55 5G: Tips - Gsm-Solution.Com ).

  • Odin Flash Tool – Odin3 (v3.14.4 or latest) for Windows, to flash the firmware onto your phone (How to Root Samsung Galaxy A55 5G: Tips - Gsm-Solution.Com ). (Odin is unofficial Samsung software; download from a trusted source or Samsung community.) If you only have Linux, you can use Heimdall or Odin alternatives, but this guide assumes Odin on Windows (Installation | Magisk).

  • USB Driver & ADB Tools: Ensure the Samsung USB driver is installed (as above). Optionally, have ADB/Fastboot tools ready – ADB can help transfer files (we’ll use it to copy the patched file, if needed).

Notes: All downloads (firmware, Odin, Magisk) should be done ahead of time to a convenient folder on your PC. Using the exact firmware for your Galaxy A55 model is critical – flashing incorrect firmware can cause failures or bricks (How to Root Samsung Galaxy A55 5G: Tips - Gsm-Solution.Com ). Also, keep in mind that if your A55 is a U.S. carrier model with a Snapdragon chipset, its bootloader might be permanently locked, making rooting impossible (Samsung A55 5G root with magisk? : r/androidroot). The steps below assume a bootloader-unlockable model (e.g. international version).

Unlocking the Bootloader on the Galaxy A55

Rooting is only possible if the bootloader is unlocked. Samsung devices (except many U.S. models) allow bootloader unlocking through Developer options and Download Mode. This process will erase all data (factory reset) and trip Knox (0x1), voiding warranty (Samsung A55 5G root with magisk? : r/androidroot), so proceed only if you accept that.

Steps to unlock the bootloader:

  1. Enable OEM Unlocking: In Developer options, toggle OEM Unlocking on (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS). (If this option is missing or greyed out on a brand-new phone, connect to the internet and check again in a couple of days – some devices require a short waiting period.)

  2. Power off the phone. Ensure the phone is completely off.

  3. Enter Download Mode: Press and hold Volume Up + Volume Down together, then connect the USB cable (attached to your PC) while holding the keys. The phone will boot to a blue Download Mode warning screen (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS). (On newer Samsung devices without a Bixby button, the Vol Up + Vol Down method with USB cable is used for download mode (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS).)

  4. Initiate Bootloader Unlock: On the Download Mode screen, long-press Volume Up to confirm bootloader unlock (Installation | Magisk). (A prompt will warn about device warranty void etc.; confirm to proceed.)

  5. Data wipe: The phone will unlock the bootloader and automatically perform a factory reset (wiping all data) and reboot (Installation | Magisk). This is normal.

  6. Initial setup: After reboot, go through the initial Android setup. Connect to Wi-Fi or mobile data during setup. (This is important for Samsung’s VaultKeeper to finalize the unlock (Installation | Magisk).)

  7. Verify OEM unlock status: Re-enable Developer Options (tap Build Number again) and check that OEM Unlocking is now visible and greyed out (or says bootloader already unlocked) (Installation | Magisk). This means your Galaxy A55’s bootloader is unlocked and will accept custom images.

Now your bootloader is unlocked, and you’re ready to flash a custom patched image. Note that from this point Knox is tripped (irreversible) – features like Samsung Knox security, Samsung Pay, Secure Folder, Samsung Health (some security features) will no longer work even if you unroot later (Samsung A55 5G root with magisk? : r/androidroot). Also, you will no longer receive OTA updates; you’ll have to update manually via Odin in the future (Samsung A55 5G root with magisk? : r/androidroot). These are known trade-offs for rooting Samsung devices.

Patching the Firmware with Magisk

Next, you will obtain the stock firmware’s AP file and patch it with Magisk to create a rooted boot image. This patched AP is what we will flash to gain root.

  1. Download the firmware: Using the model number of your Galaxy A55 (e.g. SM-A556B), download the official Android 14 firmware package for your device (and region) (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS). You can use the SamFw website or Samsung’s firmware tools to get the correct file (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS). The firmware will be a large zip (or *.tar.md5) containing multiple files (BL, AP, CP, CSC, etc.).

  2. Extract the firmware: On your PC, extract the downloaded firmware archive. You should get files such as AP_[device_model]_[version].tar.md5, BL_[...].tar.md5, CP_[...].tar.md5, CSC...tar.md5. The AP file is the largest, containing the system and boot images (Installation | Magisk).

  3. Copy AP to phone: Take the AP tar file and copy it to your phone’s storage (e.g. via USB MTP transfer into the Downloads folder). Alternatively, use the adb push command to send the file to /sdcard/Download/ on your device.

  4. Install Magisk app on phone: If not already installed, install the latest Magisk APK on the Galaxy A55. (You may need to enable Install from unknown sources for your file manager/browser to install it.)

  5. Launch Magisk and patch AP: Open the Magisk app. In Magisk, tap Install (usually on the Magisk card) and then select “Select and Patch a File” as the method (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS). Navigate to the location of the copied AP tar and select it (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS). Magisk will now patch the firmware image – this can take a couple of minutes. Once finished, it will output a patched file (usually named magisk_patched_[random].tar) in your phone’s Download folder (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS).

    • Important: Magisk will automatically detect if your device has a recovery-based root setup. If the Magisk app shows “Ramdisk: No” (meaning the A55 has no boot ramdisk), make sure to enable the “Recovery Mode” option in Magisk before patching (Installation | Magisk). (When you tap Install in Magisk, if no boot ramdisk is present, check the “Patch Recovery” or “Recovery (no ramdisk)” checkbox.) This ensures Magisk will be installed via the recovery partition. If your device does have a boot ramdisk (likely No for most modern Samsung A series), you can patch normally.

  6. Transfer patched file to PC: Once Magisk finishes, find the patched tar (e.g. in Download folder) named magisk_patched.tar (or similar). Copy this file back to your PC. Tip: Use adb pull /sdcard/Download/magisk_patched*.tar from your PC’s command line to retrieve the file (Installation | Magisk). (Using ADB is recommended because sometimes large files can get corrupted over MTP transfer (Installation | Magisk).) Ensure the patched file on your PC is intact (should be a large TAR file, likely several GB).

You now have a Magisk-patched firmware file ready to flash. The next step is to flash this onto your device using Odin.

Flashing the Patched Firmware with Odin

In this step, you will use Odin on your PC to flash the patched AP file along with the rest of the stock firmware (BL, CP, CSC). This will essentially install the stock firmware on your phone but with Magisk embedded for root.

Before flashing: Double-check that you have the correct model’s files. Flashing the wrong model firmware can brick the device (How to Root Samsung Galaxy A55 5G: Tips - Gsm-Solution.Com ). Also, disable Samsung Smart Switch or any software that might interfere with the phone’s connection. Close other Odin instances if any.

  1. Reboot to Download Mode: If your phone is on, turn it off. Then once again boot into Download Mode (Vol Up + Vol Down + USB cable) as done earlier (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS). On the blue warning screen, press Volume Up to continue to the Odin mode screen.

  2. Launch Odin on PC: Run Odin3 on your Windows PC. Odin should show a highlighted port (e.g., 0:[COM5]) indicating the phone is detected. You should see an “Added!!” message in Odin’s log box if everything is connected properly.

  3. Load firmware files in Odin: In Odin, you will see buttons for BL, AP, CP, CSC. Click each button and select the corresponding file from the firmware you extracted:

    (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS) Figure: Odin interface with BL/AP/CP/CSC slots filled (using a patched AP file for root).

    • BL: Select the firmware file beginning with BL_ (bootloader).

    • AP: Select the patched tar file (e.g. magisk_patched.tar) for AP. This is the file you created with Magisk (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS).

    • CP: Select the CP_ file (modem/baseband).

    • CSC: Select the CSC_ file (stock CSC, not HOME_CSC). Do NOT use HOME_CSC – using the regular CSC will wipe data which is necessary for initial root setup (Installation | Magisk).

    • Leave the Userdata field empty (we are not flashing a user data image).

  4. Review Odin options: In Odin’s options tab, make sure “Auto Reboot” and “F. Reset Time” are checked (they usually are by default). Do NOT check Re-partition or any other options.

  5. Flash the files: Click the Start button in Odin to begin flashing (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS). The process will take a few minutes. Do not disconnect the cable or turn off the PC/phone during this. Watch Odin’s log for progress – it will show messages as it flashes each partition. Eventually, you should see a green “PASS” message in Odin, indicating a successful flash.

  6. Reboot and setup: After flashing, the phone will reboot. It may reboot once or twice as it resets and initializes (especially since we flashed a CSC which triggers a factory reset). If prompted on the phone with a confirmation to reset, choose to proceed (or if it boots to recovery with a “Data wipe” message, confirm it). The device will then boot into Android. Go through the setup process again (since data was wiped).

If everything was done correctly, your Galaxy A55 now has Magisk installed in the boot image. The next section covers how to verify this.

Verifying Root Access and Installing Root Apps

After your phone boots up, you’ll want to verify that you indeed have root access:

  • Install Magisk Manager: Since the phone was reset, the Magisk app you used earlier may not be present. Install the Magisk APK on the phone again (the same one you downloaded) so that you can manage root access. When you open it, it should detect Magisk is installed. It might prompt for additional setup – allow it to do so and reboot if required (this is to finalize installation).

  • Verify with Root Checker: You can download a root verification app like Root Checker from the Play Store. Open Root Checker and use it to check for root access. It should prompt for Superuser permission – grant it. If rooted, it will show a success message confirming that the device is rooted.

  • Alternatively, open the Magisk app: it should show “Installed Version” of Magisk and indicate that Magisk is up and running (no errors).

  • You can now install root-only apps or mods. For example, apps like Titanium Backup, ad blockers, or firewall apps that need root should now work. In Magisk, you can also explore installing Magisk Modules (in the Modules section) for additional functionality.

To double-check, you can also use the Magisk app’s “Check SafetyNet” or Play Integrity API (though with root, basic attestation will likely fail by default). If certain apps (banking, Google Pay, etc.) are not working, you may need to use Magisk’s hiding features (configure DenyList or use modules like Shamiko to hide root – beyond the scope of this guide).

Lastly, ensure that the Magisk app shows “SafetyNet passed” if you plan to use apps that require an unrooted status. By default, rooting trips SafetyNet/Play Integrity. You might have to configure Magisk’s settings or install modules to pass SafetyNet if needed (How to Root Samsung Galaxy A55 5G: Tips - Gsm-Solution.Com ) (How to Root Samsung Galaxy A55 5G: Tips - Gsm-Solution.Com ).

Known Issues, Risks, and Precautions

Rooting the Galaxy A55 using this method comes with several important considerations:

  • Warranty and Knox: As noted, unlocking the bootloader trips Samsung Knox (sets fuse to 0x1) which voids your warranty permanently and cannot be reversed (Samsung A55 5G root with magisk? : r/androidroot). Knox-secured services will be disabled. For example, Samsung Pay, Secure Folder, Samsung Pass, and some Samsung Health features will no longer function on a rooted device (Samsung A55 5G root with magisk? : r/androidroot). Even unrooting and reflashing stock firmware will not restore those because Knox state remains tripped.

  • Security and Privacy: Rooting introduces potential security risks. Apps with root access can bypass Android’s normal security restrictions. Be cautious about which apps you grant root permissions to. Avoid banking or sensitive apps on rooted devices unless you take measures to secure/hide root.

  • OTA Updates: Your phone likely won’t receive OTA updates after root (or if it does, installing an OTA may fail) (Samsung A55 5G root with magisk? : r/androidroot). To update to new Android or security patches, you’ll need to manually download the updated firmware and repeat the patching/flashing process (or use a custom ROM if available). Always restore the original boot image (or flash full stock) before attempting an OTA, if you ever try one.

  • Device Compatibility: This process is specific to Samsung’s typical partition scheme. It is compatible with Android 14 and the Galaxy A55’s Linux 6.1.93 kernel as long as you use the corresponding firmware and latest Magisk (Magisk v26+ supports Android 14). Using the latest Magisk is recommended for Android 14 support and stability.

  • Bootloops or Failures: If Odin says “FAIL” or you end up in a bootloop, don’t panic. You can always boot into Download Mode and flash the original stock firmware (the same files without the Magisk patch) to restore the phone. Common causes of failure include using the wrong firmware version or an incomplete download, so double-check file integrity (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS). Odin errors can sometimes be fixed by using a different USB port, cable, or reinstalling drivers.

  • Magisk in Recovery (No Ramdisk): If your device has no boot ramdisk (likely for A55), Magisk is installed to the recovery partition. This means if you boot normally, Magisk might not be active until you do a special boot. Typically, to boot into the rooted system, you hold Volume Up (to enter recovery) during the boot process – this actually boots the phone with Magisk. The first boot after flashing was handled automatically by doing the factory reset in recovery. For subsequent reboots, if you notice Magisk not showing up, try the recovery combo (Vol Up + Power from power-off, then release at boot logo) to ensure Magisk launches. Once Android boots, the Magisk app should show that root is active. This quirk only applies to devices where Magisk is in recovery ([Help] How do i root with magisk if i dont have ramdisk in boot images? : r/Magisk).

  • SafetyNet/Apps Detection: Some apps (banking, Google Wallet, certain games) detect root and refuse to run. Magisk provides methods to hide root (the DenyList feature, which replaced MagiskHide) (How to Root Samsung Galaxy A55 5G: Tips - Gsm-Solution.Com ). You may need to enable Zygisk in Magisk settings and add such apps to the DenyList. Additionally, modules like Shamiko can help hide root from stubborn apps. Be prepared for some trial and error to get certain apps working on a rooted device.

  • Brick risk: While the process is generally safe if instructions are followed, there’s always a risk of bricking. Flashing incorrect binaries or interrupting a flash can leave the device unbootable. Always double-check that each file (BL, AP, CP, CSC) is for the Galaxy A55 and the correct build. Do not remove the USB cable until Odin says it’s finished. If a brick happens, you can often recover by flashing stock firmware in Download Mode, but in worst cases hardware damage or bootloader corruption could occur (very rare).

  • Data loss: You will lose data during bootloader unlock and possibly during initial root installation (as we used the CSC which wipes data). Plan for this by keeping regular backups. After rooting, consider using backup apps (like Titanium Backup, which requires root) for future backups.

  • Keep firmware up to date: Using an outdated firmware on a new Android 14 release might cause issues. It’s recommended to root on the latest available firmware for your device (Installation | Magisk) to minimize bugs. Magisk will survive minor OTA updates if you patch and flash them properly (by patching the new AP and flashing).

  • Support and community: If you encounter issues, refer to forums like XDA Developers or Reddit’s r/androidroot for your device. Often other Galaxy A55 users or general Samsung root guides can provide insight. This process is very similar to rooting other Samsung A-series or S-series phones on Android 14 (Anyone Here Rooted their A54? How is the experience so far - Reddit), so broader guides may apply.

By following this guide, you should now have your Samsung Galaxy A55 successfully rooted with Magisk. Enjoy your root access responsibly – you can now tweak your device beyond stock limits (install root-required apps, customize system files, try out mods like Xposed or Kernel tweaks). Always exercise caution with what you modify, and happy rooting!

Sources: Steps and precautions adapted from official Magisk documentation and reputable community guides (Installation | Magisk) (How to Root Samsung Galaxy A55 Using Magisk [Updated] - Rooting OS) (Samsung A55 5G root with magisk? : r/androidroot), including XDA Developers forums and experienced users’ contributions. Always refer to trusted sources and the latest instructions when rooting modern devices.


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