SM-T307U firmware

• The security of your device has been improved.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

• The security of your device has been improved.

Released for 3 CSCs: SPR, TMB, USC

· The security of your device has been improved.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

• Overall stability of your device has been improved. • The security of your device has been improved.

Released for 3 CSCs: SPR, TMB, USC

• The security of your device has been improved.

Released for 2 CSCs: SPR, TMB

· The security of your device has been improved.

Released for 1 CSC: USC

· The security of your device has been improved.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

• Overall stability of your device has been improved. • The security of your device has been improved.

Released for 2 CSCs: SPR, TMB

• Overall stability of your device has been improved. • The security of your device has been improved.

Released for 1 CSC: USC

· The security of your device has been improved. At T-Mobile, our customer's privacy and security is incredibly important. We pride ourselves on making sure your mobile experience is safe and secure. It is strongly recommended that you install this security patch to protect your device. This will not consume your data. Please charge your device, do not turn off the device while the update is installing. During installation you cannot use your device at all, even to dial 9-1-1.

Released for 3 CSCs: SPR, TMB, USC

· The security of your device has been improved. ※ If your device is encrypted, it must be decrypted before upgrading.

Released for 1 CSC: TMB

· The security of your device has been improved.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

· The security of your device has been improved. At T-Mobile, our customer's privacy and security is incredibly important. We pride ourselves on making sure your mobile experience is safe and secure. It is strongly recommended that you install this security patch to protect your device. This will not consume your data. Please charge your device, do not turn off the device while the update is installing. During installation you cannot use your device at all, even to dial 9-1-1.

Released for 3 CSCs: SPR, TMB, USC

· The security of your device has been improved.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

· The security of your device has been improved. At T-Mobile, our customer's privacy and security is incredibly important. We pride ourselves on making sure your mobile experience is safe and secure. It is strongly recommended that you install this security patch to protect your device. This will not consume your data. Please charge your device, do not turn off the device while the update is installing. During installation you cannot use your device at all, even to dial 9-1-1.

Released for 3 CSCs: SPR, TMB, USC

· The security of your device has been improved.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

One UI 3.1 Upgrade (Android 11) One UI 3.1 is designed to help you focus on what matters. Our visual redesign has improved the places you visit the most, like the Home screen and quick panel, to reduce distractions, highlight important information, and make your experience more consistent. Performance improvements will help apps run quicker while using less battery power. And One UI 3.1 puts control in your hands with new privacy controls, one-time permissions, and enhanced Digital Wellbeing. Scroll down for a full list of changes. Visual design We’ve refreshed the look and feel of One UI 3.1 in lots of ways, big and small, from new, more consistent icons to smarter organization of the quick panel and notifications. Motion is smoother and more natural than ever, with improved animations for common interactions. And the interface responds to different screen sizes to provide the best experience on any device, whether it’s a phone, foldable, or tablet. Improved performance We optimized One UI 3.1 with enhanced dynamic memory allocation, so apps run faster and perform better. We’ve also restricted background activities to provide better performance and power usage. Better customization • New image categories have been added to Dynamic Lock screen, and you can select up to 5 categories at once. • On the Lock screen, you can add a widget to check your usage time. • Get an interactive preview when setting a wallpaper. • Adjusting the Always On Display and Lock screen is easier. • In Samsung Internet, you can reorder and lock tabs. • New icons and Lock screen widgets make it easier to find and control your routines. • Use Digital Wellbeing with separate personal and work profiles. Enhanced features Home screen and Lock screen • Add widgets by touching and holding an app on the Home screen. • Turn off the screen by double tapping on an empty space on the Home or Lock screen. (Set it up in Settings > Advanced features > Motions and gestures.) • On the Lock screen, tap the clock area to see widgets like calendar, weather, and music. Calls and chats • Easily remove duplicate contacts stored in the same account in Contacts. The storage period for deleted contacts has been extended from 15 days to 30 days. • Added the ability to edit multiple linked contacts from a single screen. Pictures and videos • Take pictures quicker with improved auto focus and auto exposure. • View, edit, and share pictures and videos more easily from Gallery. • Find pictures and videos quicker with new search features and categories in Gallery. • Revert edited pictures to their original versions at any time, even after they’re saved, so you never lose a shot. Settings • Settings has a new simpler look and feel. Your Samsung account is shown at the top, and Home screen settings are now easier to access. • Find the settings you need more easily with new Search features. You’ll get better results for synonyms and common misspellings, and you can tap on tags to see groups of related settings. • Quick settings buttons have been reduced to provide only the most commonly used features. You can also add buttons to create your own customized quick panel. Samsung Keyboard • Increased the number of input languages to 370. • Made it easier to paste copied images and verification codes from text messages. • Added emoji and sticker suggestions when you enter a text-based emoticon. • Improved the keyboard layout to provide a larger space bar when entering web and email addresses. • Reorganized Keyboard settings so it's easier to access frequently used settings. Productivity Maintain a healthy balance between work and life by minimizing repetitive and complicated tasks and handling them efficiently. • In Internet, you can hide the status and navigation bars for a more immersive experience and quickly translate webpages. • You’ll be prompted to block websites that send too many pop-ups or notifications. • You can browse and select cloud drive files from the file selection screen in My Files. • You can now delete cache files in My Files to easily free up storage space. • Events with the same start time are displayed together in the month and list views in Calendar. • Open the touch pad from the navigation bar on your phone or tablet. Easy media and device control Media and device control is easier with the improved media panel in notifications. You can see recently used media apps and quickly change the playback device. You can also check Android Auto settings in the Advanced features menu in Settings. Identify and improve your digital habits Improved Digital Wellbeing features make it easy to check how you're using your phone or tablet and help you form good digital habits. Check your usage while driving or see weekly changes in your screen time by function at a glance through upgraded weekly reports. Accessibility for everyone One UI 3.1 recommends useful accessibility features for you based on your usage. The improved Accessibility shortcut makes accessibility features easier to start and use. You can use the Speak keyboard input aloud feature to get voice feedback of your typing even when TalkBack is turned off. Stronger privacy protection You can now let an app access to your microphone, camera, or location just one time. Any permissions that an app hasn’t used in a while will be automatically revoked. You can no longer give apps permission to always see your location in the regular permission popup. To let apps access your location when they’re not in use, you need to go to the location permission page for the app in Settings. Calendar • Extract the date and address from the event title and recommend automatic registration. • Receive notifications from SmartThings devices that also have specified schedule notifications. Camera • Camera function such as image quality improvement when zoomed in low light have been improved. Display • Eye comfort shield function has been added. Share Sheet • It is now possible to protect your privacy by deleting the location information of previously taken photos before sharing or posting them on social media. Social Platform • Synchronize valid links created on devices with the same registered Samsung account. • The use of social media services has been simplified. It is possible to share profiles, photos, notes, schedules, and more with friends simply by logging in to your Samsung account.

Released for 3 CSCs: SPR, TMB, USC

· The security of your device has been improved.

Released for 1 CSC: USC

One UI 3.1 Upgrade (Android 11) One UI 3.1 is designed to help you focus on what matters. Our visual redesign has improved the places you visit the most, like the Home screen and quick panel, to reduce distractions, highlight important information, and make your experience more consistent. Performance improvements will help apps run quicker while using less battery power. And One UI 3.1 puts control in your hands with new privacy controls, one-time permissions, and enhanced Digital Wellbeing. Scroll down for a full list of changes. Visual design We’ve refreshed the look and feel of One UI 3.1 in lots of ways, big and small, from new, more consistent icons to smarter organization of the quick panel and notifications. Motion is smoother and more natural than ever, with improved animations for common interactions. And the interface responds to different screen sizes to provide the best experience on any device, whether it’s a phone, foldable, or tablet. Improved performance We optimized One UI 3.1 with enhanced dynamic memory allocation, so apps run faster and perform better. We’ve also restricted background activities to provide better performance and power usage. Better customization • New image categories have been added to Dynamic Lock screen, and you can select up to 5 categories at once. • On the Lock screen, you can add a widget to check your usage time. • Get an interactive preview when setting a wallpaper. • Adjusting the Always On Display and Lock screen is easier. • In Samsung Internet, you can reorder and lock tabs. • New icons and Lock screen widgets make it easier to find and control your routines. • Use Digital Wellbeing with separate personal and work profiles. Enhanced features Home screen and Lock screen • Add widgets by touching and holding an app on the Home screen. • Turn off the screen by double tapping on an empty space on the Home or Lock screen. (Set it up in Settings > Advanced features > Motions and gestures.) • On the Lock screen, tap the clock area to see widgets like calendar, weather, and music. Calls and chats • Easily remove duplicate contacts stored in the same account in Contacts. The storage period for deleted contacts has been extended from 15 days to 30 days. • Added the ability to edit multiple linked contacts from a single screen. Pictures and videos • Take pictures quicker with improved auto focus and auto exposure. • View, edit, and share pictures and videos more easily from Gallery. • Find pictures and videos quicker with new search features and categories in Gallery. • Revert edited pictures to their original versions at any time, even after they’re saved, so you never lose a shot. Settings • Settings has a new simpler look and feel. Your Samsung account is shown at the top, and Home screen settings are now easier to access. • Find the settings you need more easily with new Search features. You’ll get better results for synonyms and common misspellings, and you can tap on tags to see groups of related settings. • Quick settings buttons have been reduced to provide only the most commonly used features. You can also add buttons to create your own customized quick panel. Samsung Keyboard • Increased the number of input languages to 370. • Made it easier to paste copied images and verification codes from text messages. • Added emoji and sticker suggestions when you enter a text-based emoticon. • Improved the keyboard layout to provide a larger space bar when entering web and email addresses. • Reorganized Keyboard settings so it's easier to access frequently used settings. Productivity Maintain a healthy balance between work and life by minimizing repetitive and complicated tasks and handling them efficiently. • In Internet, you can hide the status and navigation bars for a more immersive experience and quickly translate webpages. • You’ll be prompted to block websites that send too many pop-ups or notifications. • You can browse and select cloud drive files from the file selection screen in My Files. • You can now delete cache files in My Files to easily free up storage space. • Events with the same start time are displayed together in the month and list views in Calendar. • Open the touch pad from the navigation bar on your phone or tablet. Easy media and device control Media and device control is easier with the improved media panel in notifications. You can see recently used media apps and quickly change the playback device. You can also check Android Auto settings in the Advanced features menu in Settings. Identify and improve your digital habits Improved Digital Wellbeing features make it easy to check how you're using your phone or tablet and help you form good digital habits. Check your usage while driving or see weekly changes in your screen time by function at a glance through upgraded weekly reports. Accessibility for everyone One UI 3.1 recommends useful accessibility features for you based on your usage. The improved Accessibility shortcut makes accessibility features easier to start and use. You can use the Speak keyboard input aloud feature to get voice feedback of your typing even when TalkBack is turned off. Stronger privacy protection You can now let an app access to your microphone, camera, or location just one time. Any permissions that an app hasn’t used in a while will be automatically revoked. You can no longer give apps permission to always see your location in the regular permission popup. To let apps access your location when they’re not in use, you need to go to the location permission page for the app in Settings. Calendar • Extract the date and address from the event title and recommend automatic registration. • Receive notifications from SmartThings devices that also have specified schedule notifications. Camera • Camera function such as image quality improvement when zoomed in low light have been improved. Display • Eye comfort shield function has been added. Share Sheet • It is now possible to protect your privacy by deleting the location information of previously taken photos before sharing or posting them on social media. Social Platform • Synchronize valid links created on devices with the same registered Samsung account. • The use of social media services has been simplified. It is possible to share profiles, photos, notes, schedules, and more with friends simply by logging in to your Samsung account.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

· The security of your device has been improved. ※ If your device is encrypted, it must be decrypted before upgrading.

Released for 2 CSCs: SPR, TMB

· The security of your device has been improved.

Released for 1 CSC: USC

· The security of your device has been improved.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

· The security of your device has been improved. At T-Mobile, our customer's privacy and security is incredibly important. We pride ourselves on making sure your mobile experience is safe and secure. It is strongly recommended that you install this security patch to protect your device. This will not consume your data. Please charge your device, do not turn off the device while the update is installing. During installation you cannot use your device at all, even to dial 9-1-1.

Released for 2 CSCs: SPR, TMB

· The security of your device has been improved.

Released for 1 CSC: USC

· The security of your device has been improved.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

· The security of your device has been improved. At T-Mobile, our customer's privacy and security is incredibly important. We pride ourselves on making sure your mobile experience is safe and secure. It is strongly recommended that you install this security patch to protect your device. This will not consume your data. Please charge your device, do not turn off the device while the update is installing. During installation you cannot use your device at all, even to dial 9-1-1.

Released for 2 CSCs: SPR, TMB

· The security of your device has been improved.

Released for 1 CSC: USC

· The security of your device has been improved.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

· The security of your device has been improved. At T-Mobile, our customer's privacy and security is incredibly important. We pride ourselves on making sure your mobile experience is safe and secure. It is strongly recommended that you install this security patch to protect your device. This will not consume your data. Please charge your device, do not turn off the device while the update is installing. During installation you cannot use your device at all, even to dial 9-1-1.

Released for 2 CSCs: SPR, TMB

One UI 2.1 upgrade with Android 10 One UI 2.1 brings you Android 10, with exciting new features from Samsung and Google based on feedback from users like you. We recommend that you back up your important data to keep it safe during the upgrade. Some apps, including Calculator, Samsung Internet, Samsung Health and Samsung Notes, need to be updated individually after you update your OS. Here's what's new. Dark mode - Enhanced image, text, and color adjustments for day and night environments. - Darkened wallpapers, widgets, and alarms while Dark mode is on. Icons and colors - Clearer app icons and system colors. - Improved layouts for titles and buttons to eliminate wasted screen space. Smoother animations - Enhanced animations with a playful touch. Full screen gestures - Added new navigation gestures. Refined interactions - Navigate more comfortably on large screens with minimal finger movement. - Easily focus on what matters with clearly highlighted buttons. Accessibility - High contrast keyboards and layouts for large text have been improved. - Listen to live speech and display it as text. Better text over wallpapers - See text more clearly against wallpaper, as One UI automatically adjusts font colors based on light and dark areas and color contrast in the image below. Media and devices - Replaced the SmartThings panel with the Media and Devices. - Media: Control music and videos playing on your phone as well as other devices. - Devices: Check and control your SmartThings devices directly from the quick panel. Device care - The battery usage graph now provides more detailed information. - Added battery limit setting and other enhancements for Wireless PowerShare. Digital wellbeing - Set goals to keep your phone usage in check. - Use Focus mode to help avoid distractions from your phone. - Keep an eye on your kids with new parental controls. Camera - Added the ability to edit the modes that appear at the bottom of the screen. - Provided a More tab so you can quickly access hidden modes from the preview screen. - Improved the layout so you can focus on taking pictures without the settings getting in the way. Internet - Customize the quick menu to get instant access to the features you use the most. - Get more information from the app bar. - Install add-ons from the Galaxy Store to get even more features. Samsung Contacts - Added Trash feature for Contacts. Contacts that you delete will stay in the trash for 15 days before being deleted forever. Calendar - Stickers can be added to a date without creating an event. - Ringtones can be used for event alerts. Reminder - More options are available for repeating reminders. - Set location-based reminders for a specific period of time. - Share reminders with your family group and other sharing groups. - Set reminders for a specific date without an alert. My Files - Created a Trash feature so you can restore files if you delete something by mistake. - Added more filters you can use while searching to help you find things quickly. - You can now copy or move multiple files and folders to different destinations at the same time. Calculator - Added speed and time units to the unit converter.

Released for 13 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, SJR, TBT, TLS, VMC, VTR, XAC

One UI 2 upgrade with Android 10 One UI 2 brings you Android 10, with exciting new features from Samsung and Google based on feedback from users like you. We recommend that you back up your important data to keep it safe during the upgrade. Some apps, including Calculator, Samsung Internet, and Samsung Notes, need to be updated individually after you update your OS. Here's what's new. Dark mode - Enhanced image, text, and color adjustments for day and night environments. - Darkened wallpapers, widgets, and alarms while Dark mode is on. Icons and colors - Clearer app icons and system colors. - Improved layouts for titles and buttons to eliminate wasted screen space. Smoother animations - Enhanced animations with a playful touch. Full screen gestures - Added new navigation gestures. Refined interactions - Navigate more comfortably on large screens with minimal finger movement. - Easily focus on what matters with clearly highlighted buttons. Accessibility - High contrast keyboards and layouts for large text have been improved. - Listen to live speech and display it as text. Better text over wallpapers - See text more clearly against wallpaper, as One UI automatically adjusts font colors based on light and dark areas and color contrast in the image below. Media and devices - Replaced the SmartThings panel with the Media and Devices. - Media: Control music and videos playing on your phone as well as other devices. - Devices: Check and control your SmartThings devices directly from the quick panel. Device care - The battery usage graph now provides more detailed information. Digital wellbeing - Set goals to keep your phone usage in check. - Use Focus mode to help avoid distractions from your phone. - Keep an eye on your kids with new parental controls. Camera - Added the ability to edit the modes that appear at the bottom of the screen. - Provided a More tab so you can quickly access hidden modes from the preview screen. - Improved the layout so you can focus on taking pictures without the settings getting in the way. Internet - Customize the quick menu to get instant access to the features you use the most. - Get more information from the app bar. - Install add-ons from the Galaxy Store to get even more features. Samsung Contacts - Added Trash feature for Contacts. Contacts that you delete will stay in the trash for 15 days before being deleted forever. Calendar - Stickers can be added to a date without creating an event. - Ringtones can be used for event alerts. Reminder - More options are available for repeating reminders. - Set location-based reminders for a specific period of time. - Share reminders with your family group and other sharing groups. - Set reminders for a specific date without an alert. My Files - Created a Trash feature so you can restore files if you delete something by mistake. - Added more filters you can use while searching to help you find things quickly. - You can now copy or move multiple files and folders to different destinations at the same time. Calculator - Added speed and time units to the unit converter. Samsung keyboard - A multilingual translation feature has been added. - Stickers can be added to a date without creating an event. - A text undo/redo feature has been added. - You can now search for music in Spotify directly from the keyboard. - An icon to open Samsung Pass has been added. Quick Share - Files can now be quickly and easily shared with nearby Samsung devices using Quick Share. Music Share - Music Share now lets you share music with your friends using a Bluetooth audio device. Samsung Daily - Bixby Home has been replaced with Samsung Daily.

Released for 3 CSCs: SPR, TMB, USC

· The security of your device has been improved.

Released for 12 CSCs: BMC, CHR, FIZ, FMC, GLW, KDO, RWC, TBT, TLS, VMC, VTR, XAC

· The security of your device has been improved. At T-Mobile, our customer's privacy and security is incredibly important. We pride ourselves on making sure your mobile experience is safe and secure. It is strongly recommended that you install this security patch to protect your device. This will not consume your data. Please charge your device, do not turn off the device while the update is installing. During installation you cannot use your device at all, even to dial 9-1-1.

Released for 3 CSCs: SPR, TMB, USC

· The security of your device has been improved. At T-Mobile, our customer's privacy and security is incredibly important. We pride ourselves on making sure your mobile experience is safe and secure. It is strongly recommended that you install this security patch to protect your device. This will not consume your data. Please charge your device, do not turn off the device while the update is installing. During installation you cannot use your device at all, even to dial 9-1-1.

Released for 2 CSCs: SPR, TMB