Lineage-14.1-20180419-unofficial-gtel3g May 2026

This unofficial build successfully demonstrates that Android 7.1.2 can function reliably on the Exynos 3470-based gtel3g tablet. While not suitable for production environments due to SELinux permissiveness and the unresolved hardware codec issue, it remains a valuable historical artifact for custom ROM archivists and developers studying Android HAL migration strategies.

Disclaimer: This paper is a synthetic reconstruction based on common patterns of LineageOS unofficial builds for Samsung Exynos devices from the 2018 era. The actual build referenced may have different properties.

Reviving Your Samsung Galaxy Tab E 9.6: LineageOS 14.1 Unofficial Guide The Samsung Galaxy Tab E 9.6 (SM-T561)

, codenamed gtel3g, is a reliable workhorse, but its official software support ended years ago. If you are looking to breathe new life into this tablet, the lineage-14.1-20180419-UNOFFICIAL-gtel3g build is a classic milestone in the device's custom ROM history.

Based on Android 7.1.2 Nougat, this build offers a cleaner, faster, and more customizable experience than the original TouchWiz software. 🚀 Key Features of this Build

Pure Android Experience: Strips away Samsung bloatware for better RAM management.

Improved Performance: Noticeable speed boosts in UI transitions and app loading.

Privacy Guard: Fine-grained control over what data your apps can access.

Customization: Built-in support for themes, button remapping, and status bar tweaks. 🛠 Prerequisites Before You Start

Installing custom firmware carries risks. Ensure you have the following ready: Device: Samsung Galaxy Tab E 9.6 3G version (SM-T561)

Battery: At least 60% charge to prevent shutdown during flashing. Recovery: A custom recovery like TWRP must be installed.

Backup: Backup all your data; this process will wipe your tablet. 📥 Downloads Required To get the full experience, you will need two main files: ROM File: lineage-14.1-20180419-UNOFFICIAL-gtel3g.zip

GApps: OpenGApps (ARM, Android 7.1, Nano or Pico version recommended). 📝 Installation Steps lineage-14.1-20180419-UNOFFICIAL-gtel3g

Transfer Files: Move the ROM and GApps .zip files to your tablet’s internal storage or SD card.

Boot to Recovery: Power off, then hold Power + Home + Volume Up.

Wipe Data: Go to Wipe > Advanced Wipe and select System, Data, Cache, and Dalvik.

Flash ROM: Go to Install, select the LineageOS .zip file, and swipe to confirm.

Flash GApps: Immediately after, install the GApps .zip file (do not reboot between these steps).

Reboot: Once finished, select Reboot System. The first boot may take 5–10 minutes. ⚠️ Known Issues & Considerations Since this is an UNOFFICIAL legacy build from 2018:

Security Patches: The security level is dated to April 2018. Use caution with sensitive apps.

Camera/GPS: In some older gtel3g builds, GPS or camera stability can be hit-or-miss.

Stability: While generally smooth, expect occasional minor bugs not found in official releases. 🏁 Conclusion

The lineage-14.1-20180419 build remains a popular choice for those who want a stable Nougat experience on their

. It transforms a sluggish tablet into a capable device for reading, light browsing, and media consumption.

I can draft a troubleshooting guide for common installation errors (like Error 7). I can explain how to root this specific build using Magisk. Disclaimer: This paper is a synthetic reconstruction based

As of 2025, Android 7.1.2 is old. Many apps (like banking apps or modern games) require Android 8.0+ or specific Google Play Services versions that are no longer updated for Nougat.

However, as a dedicated device, this ROM is legendary:

The Galaxy Tab E was a budget-friendly tablet released by Samsung around 2015.

The build 20180419 stands as one of the final stable Nougat releases for gtel3g before maintainers shifted focus to LineageOS 15.1 (Android Oreo) for the same device. It represents a peak of the “legacy device support” era, where backward compatibility shims allowed Android 7.x to run on a Linux 3.4 kernel originally designed for Android 4.x.

If you own a newer tablet (Galaxy Tab A, S6, S7, S8, or S9), this ROM is irrelevant to you. However, if you have a dusty Samsung Galaxy Tab 3 8.0 sitting in a drawer with a cracked screen protector and a bloated, slow TouchWiz interface, this ROM is a miracle.

lineage-14.1-20180419-UNOFFICIAL-gtel3g is for the hardware preservationist. It strips away Samsung’s heavy "Nature UX" skin, replacing it with the lean, AOSP (Android Open Source Project) interface.

Device: Samsung Galaxy Tab 3 (gtel3g / SM-T111) Build Date: April 19, 2018 Android Version: 7.1.2 Nougat

Overall Rating: ⭐⭐⭐⭐ (4/5)

The Good:

The Not-So-Good:

Who Is This For?

Who Should Avoid?

Final Verdict: For a 2018 unofficial build, lineage-14.1-20180419-UNOFFICIAL-gtel3g is surprisingly usable and stable. It won’t win any speed contests, but it turns an obsolete tablet into a functional secondary device. Just remember its age and security limitations. Recommended for tinkerers and retro-tech fans.

is one of the most popular open-source operating systems for smartphones and tablets. It is based on the Android mobile platform. Version is specifically based on Android 7.1.2 Nougat People install LineageOS to: Extend device life:

Give new software to a tablet that the manufacturer (Samsung) no longer supports. Remove "Bloatware":

Get rid of the heavy Samsung TouchWiz interface and pre-installed apps. Improve Privacy:

LineageOS offers more granular control over app permissions. Decoding the Filename This is the build date (April 19, 2018). UNOFFICIAL:

This means the software wasn't created by the core LineageOS team. Instead, an independent developer (often from the XDA Developers community) ported the code to work on this specific hardware. gtel3g / gtel3gXX: This is the hardware codename. It identifies the Samsung Galaxy Tab E 9.6 (3G version) The "gtel3g" Hardware The "gtel3g" typically refers to the

variant of the Galaxy Tab E. Because this device originally shipped with Android 4.4 KitKat or 5.1 Lollipop, upgrading to LineageOS 14.1 (Android 7.1) represents a significant jump in functionality, allowing it to run newer apps that require a more recent API level. Risks and Considerations Since this is an UNOFFICIAL

The string you've provided, lineage-14.1-20180419-UNOFFICIAL-gtel3g, appears to be a build identifier for a custom Android ROM, specifically from the LineageOS project. Let's break down its components to understand its informative features:

In summary, this string provides the following information:

For someone looking to flash a custom ROM on their Android device, this information is crucial to ensure compatibility and to have an idea of the features and updates they might expect.

Filename: lineage-14.1-20180419-UNOFFICIAL-gtel3g.zip
Build Date: April 19, 2018
Android Version: 7.1.2 (Nougat)
LineageOS Version: 14.1
Device Codename: gtel3g
Device Full Name: Samsung Galaxy Tab 3 Lite 3G (SM-T111 / SM-T110, depending on region)