One UI 5.1
Samsung Galaxy S23 Ultra One UI 5.1 test build spotted [AWA6]

Samsung has already started internal testing of the One UI 5.1 for the Galaxy S23 series smartphones. Now, a new build of Samsung Galaxy S23 Ultra appeared on the checkfirm, which reveals that a major One UI (One UI 5.1) version testing is going on.
According to the information, the One UI 5.1 is testing on the Galaxy S23 Ultra model with firmware version S918NKSU1AWA6 in Korea.
January 6, 2023
After Galaxy S23 Plus, Samsung has started testing Android 13-based One UI 5.1 firmware on the Galaxy S23 Ultra smartphone ahead of its launch. Currently, the major One UI build testing is conducted for the Korean variant.
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According to the latest information from the One UI Test Build Detection app – Checkfirm reveals that the One UI build is currently being tested on the Galaxy S23 Ultra (SM-S918N) model. The One UI 5.1 version testing on Samsung Galaxy S23 Ultra smartphone with firmware S918NKSU1AWA3.
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It’s worth mentioning that this test builds bears CSC code KOO, which suggests it’s being tested for Korean users. At the moment, we don’t have any information on the release date of the One UI 5.1 update but we can expect from today’s information that the release is near.
As per the reports, the Samsung Galaxy S23 series will launch in early February at the Galaxy Unpacked event 2023. Several rumors, leaks, and information started surfacing online that reveal its design, software, processor, and more.
Recently, new renders of Galaxy S23 Ultra and Galaxy S23 appeared online that revealed the overall design and camera setup. Notably, Galaxy S23 Ultra to features a quad camera setup consisting of a 200MP main, 12MP ultrawide, 10MP telephoto, and 10MP super telephoto sensor.
One UI 5.1
Samsung Galaxy A52s One UI 5.1 update live in India, France, and more countries

Users of Samsung Galaxy A52s smartphones in several countries are enjoying the One UI 5.1 feature and now the company has pushed this major update of A52s in India as well.
Samsung Galaxy A52s is getting One UI 5.1 update in India with One UI firmware version A528BXXU2EWC1 and a big installation package size of 1386.87 MB. You can download and install the update to get a next-level experience.
Along with the Indian variant, the company is also expanding the One UI 5.1 update for Galaxy A52s in Iraq, Indonesia, Ireland, Spain, Austria, Switzerland, Bulgaria, France, Romania, and more countries.
One UI 5.1 update brings a slew of new features and improvements to make your Galaxy experience more innovative and smoother. Also, the update installs the latest Android patch released in March 2023 to improve system security and stability.
Samsung Galaxy A52s One UI 5.1 update – India #samsung #galaxyA52s pic.twitter.com/nUR6CBuGvE
— Samsung Software Updates (@SamsungSWUpdate) March 29, 2023
The latest update brings new camera features, Enhanced remastering, Shared family Album, revamped image info display, multitasking in DeX, advanced Modes & Routines, Dynamic Weather widget, new contact widget, battery widget, improved Internet Browsing, and more.
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Galaxy A52s users can download the update via the Settings app, then tap on Software updates, and press the Download and install option. Follow the on-screen instructions to install the update.
One UI 5.1
Samsung One UI 5.1 GIF Remaster Feature

GIF feature is used to express emotions other than stickers. It stands for Graphics Interchange Format which supports both animated and static images. Samsung already offers a bunch of photo editing tools for Galaxy devices with One UI, and with One UI 5.1, the company has added the GIF Remaster feature.
The GIF also has unique advantages such as expressive transparent background, so it is actively used, but because it is an old format, there are quality problems. That’s why, Samsung added the GIF Remaster feature that applies the latest deep-learning techniques to improve the quality of GIF images.
The company introduced the GIF Remaster feature with the Samsung Galaxy S23 series and is currently expanding to supported models only that are running on One UI 5.1 or higher. Like other Remastered features, you can access it from the Gallery suggestions screen or the Single View screen.
GIF Remaster feature
GIF Remaster uses deep learning techniques to improve picture quality. Deep learning training involves a large amount of data, so it is very effective for improving GIFs with different types and quality degradation.
How does it work?
Noise Cancellation and Upscale
The noise generated by quantization and dithering varies greatly depending on the parameter settings when creating the GIF, and the magnitude of the noise is much larger than that of later developed encoding methods.
Recreating GIFs through deep learning can effectively reduce both types of noise. Also, GIF images usually have a lower resolution. GIF Remaster upscaling up to 2x for added detail and clarity.

Image on the right is the result
Transparent background GIF preprocessing
If an image with a transparent background is passed through a deep learning network, unwanted noise will be generated at the pixels at the edge of the object, as shown in the 1st image below [without preprocessing].
This is because deep learning networks also refer to the color of neighboring pixels when generating pixels at the edge of an object. The opacity of the transparent background pixels is set to 0 so that they are practically invisible, but the RGB value information (mainly black 0) is still valid, so the RGB information of this transparent pixel affects the deep learning network and reduces noise.
GIF Remastering creates results without edge noise, as shown in [Applying preprocessing] last image below, by applying a deep learning network algorithm that processes transparent background pixels to leave them unaffected. The technology is currently patented.
How’s GIF created?
GIF images are created from raw images in two main steps: lossy compression and lossless compression. The second stage, lossless compression, uses LZW encoding, which is a type of entropy encoding, similar to ZIP file compression without losing information easily. On the other hand, in lossy compression, information is lost in the first stage, resulting in a loss of quality.
Quantization
GIF converts the colors of the input pixels to 8-bit 256 or smaller, a process called quantization. Images such as JPEG represent 16,777,216 colors at 24 bits per pixel, and the difference from the original image can cause noticeable discomfort when converted to GIF.
Dithering
A process of hiding the discomfort caused by quantization error by adding artificial noise is sometimes implemented, called dithering. Dithering can make the boundaries between quantized regions smoother, but adding noise by rules can accidentally produce unpleasant noise.
One UI 5.1
Samsung Galaxy Tab A7 Lite begins receiving One UI 5.1 features

Hurrah! Samsung has finally kicked off the One UI 5.1 update based on Android 13 for an affordable tablet – the Galaxy Tab A7 Lite. The company wants to deliver users a different and better Galaxy Tab experience through this major update.
One UI 5.1 update for Samsung Galaxy Tab A7 Lite makes multitasking easier on its large screen as well as adds many advanced features that will completely enhance your experience. Also, it installs an Android security patch to amplify the security of the device.
The Korean tech giant has seeded this update in India and will soon expand it to more Galaxy Tab A7 lite models. Users in India can verify this update via One UI build version T225XXU2CWB3.
Samsung Galaxy Tab A7 Lite One UI 5.1 – India #samsung #GalaxyTabA7Lite pic.twitter.com/bE3F8K1Lsg
— Samsung Software Updates (@SamsungSWUpdate) March 29, 2023
Back in the year 2021, Samsung unveiled Galaxy Tab A7 Lite with a large impressive display, a long-lasting battery of 5100mAh, octa-core MediaTek Helio P22, and more. It came with Android 11 and it received 2 major updates last year. And now, the device has started getting One UI 5.1 goodness.
Let’s talk about the new features of One UI 5.1 that the Galaxy Tab A7 Lite received with the latest update.
Camera and Gallery:
The One UI 5.1 update lets you easily change the color tone of your selfies by selecting Natural or Bright options using the dedicated button on the screen.
Meanwhile, the Gallery app is getting GIF Remaster, Extract Text from the video feature, Detailed view of your photo or video, easier searching and sharing, improved handling, and more.
Multitasking:
Being a large-screen device, the most important feature that the Tab A7 Lite is getting is the improved DeX mode. The company has significantly improved multitasking with this.
In Pop view, you can now adjust the window size by dragging the window edges in any direction. Meanwhile, for split-screen, you will see categories for Recent apps and Most used apps, allowing you to quickly select apps for Split Screen.
Widgets:
The fresh update installs a new Battery widget to display your phone and connected devices’ battery status effortlessly. The Dynamic Weather widget provides the current weather support, forecasts, and more. And, the improved Smart suggestion widget now recommends you a Spotify playlist.
One UI 5.1 for Galaxy Tab: Samsung’s new Android 13 skin has wonderful additions