The Galaxy Z Fold4 US unlocked firmware version is F936U1UEU1CWAC. In addition to the new features of One UI 5.1, the new software brings a security patch for February 2023 that fixes a number of security vulnerabilities. The update is currently available on AT&T, BluegrassCellular, CSpire and USCellular networks. GalaxyZFold4 devices on other U.S. network carriers may receive the update in the coming days.

The firmware version for the unlocked U.S. version of the Galaxy Z Flip4 is F721U1UEU1CWAC. The update brings a February 2023 security patch designed to fix dozens of security vulnerabilities found in Samsung smartphones. The new update is currently available on AT&T, Bluegrass Cellular, Cricket, C Spire and Cellular South networks in the United States.

Users of the unlocked phones in question can head to Settings — Software Update on their smartphones, then click to download and install the new system.

The Samsung One UI 5.1 include easier tinting for selfies, quick access to Expert RAW, easier photo sharing with family using Shared Family Album, Remastering to automatically remove shadows and reflections to enhance photo textures, swipe up to view information when viewing images or videos in Gallery, search for multiple people or subjects at the same time, select Save screenshot location, use 3 emoji in AR Emoji camera, resize and move and erase parts of graffiti on AR Doodle home screen using brush place, new battery widget to check battery level of Galaxy devices, new illustration style and brief summary of current weather conditions, set different wallpapers on lock screen and home screen based on current activity, and more.

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Officially, the Samsung Galaxy Z Flip4 Maison Margiela Limited Edition is tailored for fashionistas who desire to express their individuality and make a difference. The body from the inside to the outside of each element, is the full manifestation of Maison Margiela’s pioneering aesthetics and design, conveying the attitude and concept of breaking the rules, deconstruction and reinvention of tradition.

The Samsung Galaxy Z Flip4 Maison Margiela Limited Edition features the signature Maison Margiela white color on the exterior, with a touch of gray to add just the right amount of shading and a matte finish for a more layered look. At the same time, on the back panel, a series of delicately designed translucent lines reveal the internal circuitry, presenting Maison Margiela’s unique “deconstruction technique”.

In addition, there are customized interactive interfaces, including the “Black and White Inversion” theme, which evokes the perspective of an X-ray scan from the art wallpaper to the icons, and the “Brush” theme, which is designed to capture the texture of rough strokes through advanced 3D modeling technology.

In addition to the phone itself, the Samsung Galaxy Z Flip4 Maison Margiela Limited Edition comes with a range of customizable must-have accessories such as a case for the phone.

The leather case showcases the brand’s unique “fianchetto” painting process, which expresses the beauty of simplicity through a “white canvas”. At the same time, the classic anonymous logo with “four-corner stitching” and the brushed texture also makes this “canvas” present the imagination of changes over time.

On the other finger ring silicone case, the finger ring is engraved with Maison Margiela’s iconic digital code, subtly interpreting the brand’s DNA while adding more convenience to everyday use.

Samsung Galaxy Z Flip4 Maison Margiela Limited Edition is also equipped with Qualcomm Snapdragon 8 + Gen 1 processor, standard 8GB +512GB memory storage combination, using a 6.7-inch 2640 x 1080 resolution 120Hz refresh rate main screen and 1.9-inch 260 x 512 resolution small screen.

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(From JerryRigEverything / YouTube)

For starters, the Galaxy Z Flip4 has a glass-covered outer screen that can handle level 6 scratches (Mohs hardness) with relative ease.

However, at 7 levels of hardness, the glass of the machine’s outer screen shows deeper dents.

Turning over the inner screen reveals the Galaxy Z Flip4’s flexible panel, which requires relatively more care and attention.

Due to the limitations of the current material technology, the outer film of the folded inner screen only has about 2 levels of scratch resistance, and 3 levels of hardness will leave deep marks — meaning that even fingernails can damage the screen.

Similar to the Galaxy Z Fold4, the Galaxy Z Flip4 features an aluminum center frame, buttons and SIM card tray as well.

The body material is more prone to dirt, but the related violence test program was able to advance fairly smoothly.

Unfortunately, the inner screen protector is difficult to withstand open flames — after all, it’s essentially just a layer of plastic, which understandably melts under high temperatures.

Finally, there was the classic violent bending session, during which the Galaxy Z Flip4 did not make a strange popping sound, despite being bent backward quite a bit.

Samsung Z Flip 4 Durability Test they slipped a bit – JerryRigEverything (via)

The Galaxy Z Flip4 basically works fine after the wheeling and dealing with the problem, except for the fact that it doesn’t close completely. Of course, the above brutality test is just to get an idea of the durability of today’s folding screen devices, and we don’t recommend anyone to imitate it easily.

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The Samsung Galaxy Z Flip4 is officially released in China, priced at 7,499 RMB for the 256GB version and 8,499 RMB for the 512GB version.

Samsung Galaxy Z Flip4 measures 71.9 x 165.2 x 6.9mm and weighs 187g; the screen is 6.7 inches 2640 x 1080 resolution with 120Hz refresh rate and the small screen is 1.9 inches 260 x 512 resolution; it is equipped with Snapdragon 8+ Gen 1 processor and comes standard with 8GB of memory with optional 256GB and 512GB flash memory options.

In terms of design, the Samsung Galaxy Z Flip4 comes in the four individual and fashionable versatile colors shown above, with a matte finish on the glass that contrasts softly with the high-gloss metal frame. Four colors are available: Secret Purple, Gothic Space, Prosperous Cherry Garden and Blue Sea Holiday.

As for the screen, the Samsung Galaxy Z Flip4 features a 6.7-inch (right angle) screen with ultra-thin glass for a beautiful look. The Galaxy Z Flip3 5G is made of stronger materials than the Galaxy Z Flip3 and can withstand up to 200,000 folds. Officially, the Galaxy Z Flip4 is built to last. The back panel is made of hard-wearing Corning Gorilla Glass Victus + glass and the frame is made of a light and strong armored aluminum frame construction that wraps around a precision hinge for tight protection. As for water resistance, officials say it can easily be placed in 1.5 meters of still water for 30 minutes and dried out and still works fine.

In terms of cameras, the Samsung Galaxy Z Flip4 has dual 12-megapixel cameras on the rear and a 10-megapixel front-facing camera. When using the rear camera to take a selfie, you can preview it in real time from the external screen. The live preview can be either full-screen viewfinder preview or double-tap on the outer screen to preview at the original scale to make sure everyone is in the viewfinder. With the new software update, Quick Shot allows for more operations at multiple angles.

For battery life, the Samsung Galaxy Z Flip4 is powered by a 3700mAh (typical) battery with intelligent power distribution for light longevity. When the battery is low, you can connect to Super Accelerated Charging or use Wireless Quick Charge 2.0, and you can also charge your friend’s phone or headset with your phone’s power via Wireless Shared Charging.

Here’s how the Galaxy Z Flip4 compares to the old Z Flips3 5G.

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