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Samsung is updating pretty much all of its foldable smartphones to the March 2023 Android security patch in the US. The latest security update is rolling out to the Galaxy Z Fold 4, Galaxy Z Fold 3, Galaxy Z Flip 4, Galaxy Z Flip3, Galaxy Z Flip 5G, and Galaxy Z Flip. The first-gen Galaxy Fold and the Galaxy Z Fold 2 are the only models still missing the March SMR (Security Maintenance Release) stateside.
The March security update is available for both carrier-locked and unlocked units of the Galaxy Z Fold 4 in the US. The update comes with firmware versions F936USQS2CWB1 and F936U1UES2CWB1 for the two variants, respectively. It is rolling out widely on all major networks. As you can see in the official changelog here, Samsung isn’t pushing any new features or user-facing changes to the foldable. The latest firmware release is all about this month’s security patch.
The same goes for the Galaxy Z Flip 4 as well. The March update for the latest clamshell foldable is rolling out widely for everyone in the US. The updated firmware versions are F721USQS2CWB1 (carrier-locked) and F721U1UES2CWB1 (unlocked). Once again, Samsung’s changelog doesn’t mention anything apart from the latest security patch, which contains more than 60 vulnerability fixes.
The story is slightly different for the Galaxy Z Fold 3 and Galaxy Z Flip 3. As of this writing, Samsung is only pushing the March SMR to the unlocked variants of its 2021 foldable duo in the US. The new firmware build number for the former is F926U1UES2FWB3, while that for the latter is F711U1UES3FWB3. The update is live for users on pretty much every wireless network stateside. There are no new features in tow here as well.
Galaxy Z Flip & Flip 5G are also getting the March update in the US
Samsung is also pushing the March SMR to the original Galaxy Z Flip and its 5G model in the US. As of this writing, the update is only available for the unlocked variants. The new firmware build numbers for the two models are F700U1TBS5IWC2 and F707U1UES3HWC1, respectively. Users with a carrier-locked Galaxy Z Flip, Galaxy Z Flip 5G, Galaxy Z Fold 3, and Galaxy Z Flip 3 in the US should get the latest security update in the coming days.
As said earlier, the March SMR patches more than 60 vulnerabilities in Galaxy devices. These include at least five critical Android OS patches from Google. Samsung will push the latest security update to more eligible Galaxy devices in the coming days. As usual, you can check for updates from the Software update menu in the Settings app. Your phone may also notify you about new updates.
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