Many UNOFFICIAL builds for the Tab 3 drain 10-15% battery overnight. This specific build fixes the suspend process. With the screen off, the tablet enters a true deep sleep, draining only 1-2% over 12 hours.
Users switching from TouchWiz (Samsung's stock UI) to this build typically notice an immediate difference in UI fluidity. LineageOS removes the heavy "bloatware" that often chokes the Tab E’s modest 1.5GB of RAM. lineage-14.1-20180419-UNOFFICIAL-gtel3g
By April 2018, the Samsung Galaxy Tab 3 was already five years old. The original stock ROM (Android 4.4.2 KitKat) could barely run modern apps like YouTube, Spotify, or Chrome without stuttering. Many UNOFFICIAL builds for the Tab 3 drain
| Attribute | Value | | :--- | :--- | | | LineageOS 14.1 | | Build Date | 20180419 (April 19, 2018) | | Android Base | 7.1.2 (Nougat) | | Security Patch Level | April 5, 2018 (as per AOSP merge) | | Device Codename | gtel3g | | Status | UNOFFICIAL | | Kernel Version | 3.4.5 (Legacy Samsung Exynos) | Users switching from TouchWiz (Samsung's stock UI) to
If you find a mirror of lineage-14.1-20180419-UNOFFICIAL-gtel3g.zip , download it immediately. Flash it. Let your Samsung Galaxy Tab 3 escape the dark ages of KitKat. It won't be a fast tablet by 2025 standards, but it will be a functional tablet—and that is all the community ever asked for.
: This seems to be a device identifier. It likely refers to a specific device model that this ROM is intended for. The device identifier can help users ensure they're downloading the correct ROM for their device.