Download and Install One UI 2.5 Firmware on Galaxy A50 (SM-A505F)

Download and install the new One UI 2.5 firmware (BTL1) update on the Samsung Galaxy A50 (SM-A505F). The new update brings Wireless Dex, Pro Video Mode, and December 2020 security patches.

Now the update is available on the Samsung Galaxy A50. The new firmware introduces a lot of new features and improvements. The build version of the firmware is A505FDDU5BTL1, and you can download it right away on your phone.

one ui 2.5 galaxy a50

There are two ways to install One UI 2.5 firmware on the Samsung Galaxy A50. The first and easiest method is to update through OTA. If you live in one of the eligible regions, you can download and install the new update using this method. The second method which is guaranteed to work is to manually download the One UI 2.5 firmware through Frija and flash it with Odin.

Update the Samsung Galaxy A50 to One UI 2.5 via OTA

android ota update one ui 2.5

Updating through OTA is the easiest way to do so. The initial update is rolling out to users in a number of regions. If you live in any of the eligible regions, you can apply for the OTA update.

  1. Go to Settings.
  2. Scroll down and tap on Software Update.
  3. Tap on Download and Install.

If your phone is eligible for the update, the firmware will begin downloading and you can install it afterward. However, if the phone says that your software is up to date, it means that the firmware hasn’t arrived yet. In this case, you can try the second method below.

Update the Samsung Galaxy A50 to One UI 2.5 firmware with Odin

This method requires two tools: Frija and Odin. Frija is used to download the One UI 2.5 firmware, while Odin flashes it on your phone.

Download both files and extract them into a folder to use later.


  • Go to Settings > About Phone > Software Information. Quickly tap 7 times on Build Number to enable Developer Options. 
  • Go to Settings > Developer Options and tap on USB Debugging. This will allow your phone to communicate with the computer to install the new firmware.
  • Go to Settings > Developer Options and enable OEM unlocking.
  • Make sure you have at least 60% of battery life left. If your phone gets stuck during the installation process, it will not turn off.
  • Install the latest drivers for the Samsung Galaxy A50 (Download)

Download the One UI 2.5 Firmware using Frija

Go to the folder where you extracted Frija and double tap on “Frija.exe” to open the program. You need to enter your phone’s model number. In this case, it is as follows:

  • Galaxy A50: SM-A505F

You also need to enter the CSC code. In this case, you need to enter INS in the CSC field because the update is available in India as of this moment. Then click on Download and wait for the firmware to be downloaded.

galaxy a50 one ui 2.5 ota firmware

For a full guide on how to use Frija and download stock Samsung firmware, check out the tutorial below:

Steps to Install the One UI 2.5 Firmware with Odin

Go to the folder where the firmware is located. Extract the file and you will see five files: AP, BL, CP, CSC, and Home_CSC.

galaxy a50 firmware extracted

CSC and Home_CSC: Flash CSC if you want to wipe all data and perform a clean install. But if you want to keep the data (photos, videos, etc), flash Home_CSC.

  1. Go to the folder where you extracted Odin and launch the program.
  2. You will see five fields: BL, AP, CP, CSC, and USERDATA. We will focus on the first four fields.odin galaxy a50
  3. Click on BL. Navigate to the extracted firmware files and select the one that starts with BL.
  4. Click on AP and select the file that starts with AP. Do the same thing for CP and CSC. odin all fields selected
  5. Now take your phone and press the power button to turn it off.
  6. Press and hold the volume up + Bixby + Power keys at the same time. The phone will go into Recovery Mode. recovery mode a50
  7. Using the volume keys, select Reboot to bootloader. The phone will boot into Download mode galaxy a50
  8. Now connect your phone to your computer. The ID:COM box on Odin will turn blue.
  9. Press the Start button.

This will start the flashing process of the One UI 2.5 firmware on the Galaxy A50. It will take a few minutes. When the installation process finishes, the phone will reboot automatically. It will take another few minutes before the phone can fully boot up.

Once the phone is up and running, go to Settings > About Phone > Software Information. The number under One UI version will be 2.5. Congrats! You have successfully flashed the firmware on your phone.