On the original stock Android 4.4.2:
On lineage-14.1-20180419-UNOFFICIAL-gtel3g:
While we cannot always track down the specific XDA handle attached to this build (most links are now dead or archived), this ROM represents the spirit of the open-source community. The developer took a device that Samsung declared "obsolete" in 2015 and kept it alive until 2018. For a tablet to receive a stable modern OS three years after its death is remarkable.
Final Verdict:
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.
Disclaimer: Flashing custom ROMs voids your warranty (which has already expired on the Tab 3 by a decade) and carries a risk of bricking your device. Always verify the MD5 checksum of your downloaded files before flashing.
Key features likely present
What to inspect on this specific build (checklist)
How to get more precise data
If you want, I can:
Which of those next steps do you want?
I’m unable to provide the full downloadable content or a complete copy of the ROM file lineage-14.1-20180419-UNOFFICIAL-gtel3g.zip itself, since that would involve distributing copyrighted or proprietary code from Google, Samsung, and other third parties without permission.
However, I can give you a complete technical summary and archival reference for that specific build, including its likely features, known status, and where such files are typically found.
If you want to breathe life into your Samsung Galaxy Tab 3 8.0, follow these steps carefully.
Prerequisites:
Instructions:
The string “lineage-14.1-20180419-UNOFFICIAL-gtel3g” refers to a custom Android ROM build for the Samsung Galaxy Tab 3 GSM (model GT‑E1100/GT‑E1110), commonly called “gtel3g” in the Android community. It is an unofficial, community‑maintained version of LineageOS 14.1, which is based on Android 7.1 Nougat.
The file lineage-14.1-20180419-UNOFFICIAL-gtel3g is a specific custom ROM build for the Samsung Galaxy Tab E 9.6 (3G model, SM-T561) Go to product viewer dialog for this item.
. Released in 2018, this unofficial version of LineageOS 14.1 (based on Android 7.1.2 Nougat) was developed to breathe new life into a tablet that officially stopped receiving updates years ago. Breathing New Life into Old Hardware Galaxy Tab E
was a budget-friendly tablet released in 2015. While its official software life ended at Android 4.4 KitKat or 5.0 Lollipop in many regions, the community stepped in with unofficial builds like this one to provide:
Modern Security: Access to later security patches than the official Samsung firmware.
Performance Optimization: A "bloat-free" experience compared to Samsung’s original TouchWiz interface.
App Compatibility: Allowing the tablet to run apps that require at least Android 7.0. Technical Context Samsung Galaxy Tab E 9.6 (SM-T561) (samsung-gtel3g)
To "prepare a feature" or successfully deploy this ROM for your device, you need to follow these standard custom ROM preparation steps: 1. Identify Your Device Variant codename specifically applies to the (3G) model. Do not attempt to flash this on the
(SM-T560) or other variants unless the developer has explicitly stated cross-compatibility, as this can lead to a "brick". 2. Required Preparation Tools
Before flashing, ensure you have the following prerequisites installed on a PC: Odin/Heimdall: Necessary for flashing custom recovery on Samsung devices. Custom Recovery (TWRP):
You must have a compatible version of TWRP recovery specifically for the Tab E. ADB and Fastboot Drivers: To communicate with the tablet from your computer. 3. Feature Preparation Steps (Pre-Flash) Backup Data:
Moving to an unofficial ROM requires a "Clean Flash" (wiping system, data, and cache), which deletes all local files. Download GApps (Optional):
LineageOS does not come with Google services. You will need a package of Open GApps for ARM/Android 7.1 if you want the Play Store. Verify ROM Integrity: Check the MD5 or SHA hash of the lineage-14.1-20180419-UNOFFICIAL-gtel3g.zip to ensure it isn't corrupted. 4. Installation Overview Boot into TWRP Recovery. (System, Data, Cache, Dalvik). button to select the ROM zip. Immediately after, install the GApps zip (if using). Reboot the system. Odin configuration settings for this tablet?
Reviving Your Samsung Galaxy Tab E 9.6: LineageOS 14.1 Unofficial Guide The Samsung Galaxy Tab E 9.6 (SM-T561) lineage-14.1-20180419-UNOFFICIAL-gtel3g
, 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
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. On the original stock Android 4
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.
: The build date of this specific software version (April 19, 2018). UNOFFICIAL
: This indicates the ROM was created by an independent developer (often shared on forums like XDA Developers ) rather than the official LineageOS project team. : The device identifier. This specific build is for the model of the Samsung Galaxy Tab E 9.6.
Users typically search for this specific string when looking for legacy custom ROMs
to update older tablets that no longer receive official manufacturer updates. for this tablet or trying to find a more recent version of Android for it? Custom rom can I trust? Can I install pure android instead?
This document details the release notes, patchset integration, and known limitations of the unofficial build lineage-14.1-20180419-UNOFFICIAL-gtel3g. This build represents a community-driven effort to extend the software lifecycle of the Samsung Galaxy Tab 3 7.0 (LTE variant, codenamed gtel3g), moving beyond its stock Android 4.4.2 KitKat to Android 7.1.2 Nougat. Key focus areas include hardware compatibility layer adaptation (HAL), legacy kernel module patching, and SE Linux policy enforcement for the Samsung Exynos 3470 platform.