Are you experiencing slow performance on your Samsung Galaxy A03s (SM-A035F)? If so, downgrading the firmware may be the solution you need. In this step-by-step guide, we will walk you through the process of downgrading the SM-A035F firmware to improve its overall performance.

Step 1: Backup your Data

Before starting the downgrade process, it is important to back up all of your data to prevent any loss. Connect your device to a computer and transfer all necessary files, including photos, videos, and documents.

Step 2: Download the Firmware

Once you have backed up your data, it’s time to download the firmware that you want to install. Ensure that you select a firmware version compatible with your device. You can find firmware versions on various websites. We recommend downloading the firmware from the official Samsung website.

Step 3: Enable USB Debugging Mode

In order to proceed with the downgrade process, you must enable USB debugging mode on your device. Go to Settings > Developer Options and turn on USB Debugging Mode.

Step 4: Boot your Device into Download Mode

Now, switch off your device and boot it into download mode by pressing and holding the Volume Up, Power, and Home buttons at the same time. Once your device has entered download mode, release these buttons.

Step 5: Install Odin on your Computer

Odin is a software used for flashing firmware updates onto Samsung devices. You will need to install Odin on your computer before proceeding with the downgrade process. Download Odin from the internet and install it on your computer.

Step 6: Connect your Device to your Computer

Connect your device to your computer using a USB cable. Odin will detect your device and display a message indicating that it has been recognized.

Step 7: Load the Firmware into Odin

Open Odin on your computer, and click on the «AP» button. Browse for the firmware file you downloaded earlier and select it. Wait for Odin to load the firmware file.

Step 8: Start the Firmware Installation Process

Once the firmware is loaded into Odin, click on the «Start» button to begin the installation process. Wait for the process to complete, which may take several minutes.

Step 9: Restart your Device

After the firmware installation process is complete, your device will automatically restart. Wait for your device to boot up normally.

Step 10: Restore your Data

Once your device has successfully restarted, it is time to restore your data from the backup you created in Step 1. Connect your device to your computer and copy the backed-up files back onto your device.


By downgrading SM-A035F firmware(this link), you can improve the overall performance of your Samsung Galaxy A03s. Follow these step-by-step instructions carefully, and make sure that you backup all of your important data before starting the process to prevent any loss. We hope that this guide has been helpful in resolving any issues you were experiencing with your device’s performance.

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