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How to Patch Samsung AP Firmware via Magisk

In this tutorial, we will show you how to patch the Samsung AP Firmware file via Magisk Manager. So here’s how we would proceed in this guide. First off, we will show you how to download the stock firmware for your Samsung device via Frija Tool. After this, we will show you how to extract that firmware and get the AP, BL, CP, CSC, and HOME_CSC. We would then use the AP firmware file and patch it via Magisk Manager. The magisk_patched.tar will be the resultant file that you would get (which could be used to root your Samsung device). Follow along for the detailed instruction steps.

While most Samsung devices come with an Exynos chipset, it yet still manages to have decent support for custom development. No doubt it has a few extra complications in the form of Prenormal RMM State, DEFEX, and VaultKeeper. But still, developers have managed to build quite a few custom binaries for this OEM. Once you unlock the device’s bootloader, you have literally opened the floodgates to a plethora of customizations. These include the ability to flash a custom ROM, replace the device’s stock recovery with a custom one such as TWRP, etc.

Likewise, you could even gain access to the system partition via Magisk. In other words, you would have attained root aka SuperUser access. As a result, you could then flash Magisk Modules, Xposed Framework, Substratum Themes, and a plethora of other themes. This rooting could then be achieved via two different methods- with TWRP or without TWRP. It is with the latter method that would require you to patch the Samsung AP Firmware file via Magisk Manager. Let’s check out why!

The Need to Patch Samsung AP Firmware via Magisk

While the option of rooting your device via TWRP is pretty easy and could be executed within a few seconds, however, it isn’t applicable for every device. The reason stands simple- not every device has a TWRP build. And the ones that don’t, take the approach to root without TWRP Recovery. In this regard, the general syntax involves downloading the stock firmware and extracting the stock boot.img file. This file is then patched via Magisk and flashed via Fastboot. However, with Samsung things are a little bit different.

To begin with, as opposed to other OEMs such as OnePlus and Google, Samsung doesn’t upload the firmware on their site. So you will have to download it from a third-party tool (which by the way does its job pretty well). Next up, unlike other OEMs, there isn’t stock boot.img that you could patch. Rather, you would have to patch its AP Firmware file. Once the patching is complete, other OEMs simply require you to patch it via Fastboot Commands (after booting the device to Fastboot Mode).

Again, Samsung takes a road less traveled. Rather than booting to Fastboot, you have to boot to Download Mode, and rather than using Fastboot Commands, you will have to use the Odin Tool for flashing purposes.  As a result, many newcomers who have just bought a Samsung device find it a tad difficult to step into custom development. But fret not, In this guide, we will be listing out detailed instruction steps to patch the Samsung AP Firmware file via Magisk.

How to Patch Samsung AP Firmware via Magisk

We will be listing out the below instructions in separate sections for ease of understanding. Proceed in the same manner as mentioned.

STEP 1: Download Samsung Stock Firmware

firmware frija tool imformation

To being with, you will have to download the stock firmware for your Samsung device. There are quite a few third-party tools for the same, however, we would suggest you go for Frija. The reason is that it provides the fastest download speed and is extremely easy to operate. So with that said, refer to our detailed guide on How to Download Samsung Stock Firmware/ROM via Frija Tool.

STEP 2: Extract Samsung Stock Firmware

extract samsung stock firmware

Now that you have downloaded the firmware, it’s time to extract its content. For that, you may use WinZip, WinRAR, 7ZIP, etc. So proceed ahead with the extraction, and once done, you should get the following five files (each in .tar.md5 format):

  • AP
  • BL
  • CP
  • CSC

extracted samsung stock firmware files

As of now, we would be needing the AP firmware file. So copy this file and send it to your device’s internal storage. This file is quite heavy (anywhere around 3-5GB), so it is recommended to transfer it via USB cable (the wireless transfer method might take up quite a few extra minutes).

STEP 3: Install Magisk Manager on your Samsung device

Now, download and install the Magisk Manager APK onto your device. If you are on Android 11, then you might face issues with the app’s stable build. Therefore, you should download the Canary build and then change its update channel to Canary from within the app’s Settings menu. If you are looking for detailed steps, then this guide shall help you out: Fix Magisk patched boot.img issue while Rooting Android 11.

STEP 4: Patch Samsung AP Firmware via Magisk Manager

  1. Launch the Magisk Manager app on your Samsung device.
  2. Tap on the Install button next to Magisk.
  3. Then choose Select and Patch a file under Magisk. [If you see the Options section as well, then expand it and select the Recovery Mode option. Devices such as Galaxy S10 might have this option. If your Samsung device doesn’t see this option, not an issue, proceed as is.]
    patch ap file magisk samsung
  4. Now navigate to the AP firmware file that you had transferred and select it.
  5. Finally, tap on the Let’s Go button situated at the top right.
    select samsung ap firmware magisk
  6. Magisk will begin patching the AP firmware file and should only take a few seconds. Once done, the newly created magisk_patched.tar file will be present under the Downloads folder on your device.
    magisk patched tar file
  7. Optionally, you may now transfer this patched TAR file to the folder on your PC where other extracted firmware files (AP, BL, CP, CSC, and HOME_CSC) are present.

That’s it. This was all from this guide on how to patch the Samsung AP Firmware file via Magisk Manager. Once you have got this patched file, you may use it to root your Samsung device via Odin. On that note, if you have any queries concerning the aforementioned steps, do let us know in the comments section below. We will get back to you with a solution at the earliest.

Planning to Root your Samsung? Keep these Points in Mind

Since you have patched the AP file, it’s more than likely that you’re about to root your Samsung device via Magisk. However, before you end up carrying out the said task, there are a few very important points worth keeping in mind, namely:

  1. You cannot unlock the bootloader of the North American (Canada and the USA) editions of Samsung devices. So rooting those devices is not possible.
  2. Rooting a Samsung device will wipe off all the data on your device. This is because the rooting process requires a CSC file and not the Home_CSC to be flashed via Odin.
  3. Many Knox-related features might no longer work even if you unroot your device.
  4. You will not be able to install OTA updates on a rooted Samsung. Your only course of action will be to download the entire firmware via Frija and SamFW, extract it, patch the AP, and then flash the entire firmware [patched AP, BL, CP, and Home_CSC/CSC] via Odin.Fix Error Verifying VBMeta Image OK_NOT_SIGNED(3)
  5. While doing an update, you may use the Home_CSC instead of the CSC as a data wipe is not required in such cases.
  6. Never try to restore the boot, recovery, or vbmeta partitions back to stock. If there’s a need to get this job done, then you should always flash the entire firmware via Odin.
  7. Moreover, never just flash the patched AP for root as the Odin might shrink the size of the data partition. You should also flash BL, CP, and CSC along with patched AP to obtain root.

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  • hi,
    i cant install magisk on the tablet, the knox security do not let me do any app installation.

    Can i proceed without patching the AP?