Samsung Galaxy A03s - A037FXXU2BVG3 12S ROOT MAGISK V24.0 (ROOT File)

Samsung Galaxy A03s - A037FXXU2BVG3 12S ROOT MAGISK V24.0 (ROOT File) With ODIN Flash and Installed Magisk

Samsung Galaxy A03s mobile was launched on 18th August 2021. The phone comes with a 6.50-inch touchscreen display offering a resolution of 720x1600 pixels and an aspect ratio of 20:9. Samsung Galaxy A03s is powered by an octa-core MediaTek Helio P35 (MT6765) processor. It comes with 3GB, 4GB of RAM. The Samsung Galaxy A03s runs Android 11 and is powered by a 5000mAh battery. The Samsung Galaxy A03s supports proprietary fast charging.

As far as the cameras are concerned, the Samsung Galaxy A03s on the rear packs a triple camera setup featuring a 13-megapixel (f/2.2) primary camera; a 2-megapixel (f/2.4) camera, and a 2-megapixel (f/2.4) camera. The rear camera setup has autofocus. It has a single front camera setup for selfies, featuring a 5-megapixel sensor with an f/2.2 aperture.

The Samsung Galaxy A03s runs One UI Core 3.1 is based on Android 11 and packs 32GB, 64GB of inbuilt storage that can be expanded via microSD card (up to 1000GB) with a dedicated slot. The Samsung Galaxy A03s is a dual-SIM (GSM and GSM) mobile that accepts Nano-SIM and Nano-SIM cards. The Samsung Galaxy A03s measures 164.20 x 75.90 x 9.10mm (height x width x thickness) . It was launched in Black, Blue, and White colors.

Connectivity options on the Samsung Galaxy A03s include Wi-Fi, GPS, Bluetooth v5.00, USB Type-C, 3G, and 4G (with support for Band 40 used by some LTE networks in India). Sensors on the phone include accelerometer, ambient light sensor, proximity sensor, and fingerprint sensor.

As of 20th December 2022, Samsung Galaxy A03s price in India starts at Rs. 8,985.

Before Installing Magisk

Installing Magisk WILL trip KNOX
Installing Magisk for the first time REQUIRES a full data wipe (this is NOT counting the data wipe when unlocking the bootloader). Back up your data before continuing.
Download Odin (only runs on Windows) which supports your device.

Unlocking Bootloader

Unlocking the bootloader on modern Samsung devices has some caveats. The newly introduced VaultKeeper service will make the bootloader reject any unofficial partitions in some circumstances.

Allow bootloader unlocking in Developer options → OEM unlocking
Reboot to download mode: power off your device and press the download mode key combo for your device
Long press the volume up to unlock the bootloader. This will wipe your data and automatically reboot.
Go through the initial setup. Skip through all the steps since data will be wiped again in later steps. Connect the device to the Internet during the setup.
Enable developer options, and confirm that the OEM unlocking option exists and is grayed out. This means the VaultKeeper service has unleashed the bootloader.
Your bootloader now accepts unofficial images in download mode

Instructions

Use either samfirm.js, Frija, or Samloader to download the latest firmware zip of your device directly from Samsung servers.
Unzip the firmware and copy the AP tar file to your device. It is normally named as AP_[device_model_sw_ver].tar.md5
Press the Install button on the Magisk card
If your device does NOT have a boot ramdisk, check the “Recovery Mode” option
Choose “Select and Patch a File” in the method, and select the AP tar file
Start the installation, and copy the patched tar file to your PC using ADB:
adb pull /sdcard/Download/magisk_patched_[random_strings].tar
DO NOT USE MTP as it is known to corrupt large files.
Reboot to download mode. Open Odin on your PC, and flash magisk_patched.tar as AP, together with BL, CP, and CSC (NOT HOME_CSC because we want to wipe data) from the original firmware.
Your device should reboot automatically once Odin finished flashing. Agree to do a factory reset if asked.
If your device does NOT have a boot ramdisk, reboot to recovery now to enable Magisk (reason stated in Magisk in Recovery).
Install the Magisk app you’ve already downloaded and launch the app. It should show a dialog asking for additional setup.
Let the app do its job and automatically reboot the device. Voila!

Upgrading the OS

Once you have rooted your Samsung device, you can no longer upgrade your Android OS through OTA. To upgrade your device’s OS, you have to manually download the new firmware zip file and go through the same AP patching process written in the previous section. The only difference here is in the Odin flashing step: do NOT use the CSC tar, but instead use the HOME_CSC tar as we are performing an upgrade, not the initial install.

Important Notes

Never, ever try to restore either boot, recovery, or vbmeta partitions are back in stock! You can brick your device by doing so, and the only way to recover from this is to do a full Odin restore with a data wipe.
To upgrade your device with new firmware, NEVER directly use the stock AP tar file for the reasons mentioned above. Always patch AP in the Magisk app and use that instead.
Never just flash only, or else Odin may shrink your /data filesystem size. Flash AP + BL + CP + HOME_CSC when upgrading.