Deep Dive: Lineage-14.1-20180419-UNOFFICIAL-gtel3g – The Last Stand for the Samsung Galaxy Tab 3 (GT-E210L)
In the fast-paced world of Android development, most custom ROMs have a short shelf life. However, every so often, a specific build becomes legendary for its stability, its timing, or its ability to resurrect a piece of hardware long after its manufacturer abandoned it.
Today, we are examining a specific relic from the golden age of custom Android: lineage-14.1-20180419-UNOFFICIAL-gtel3g.
For the uninitiated, this filename looks like a jumble of numbers and letters. For the niche community of Samsung Galaxy Tab 3 8.0 (SHV-E210L) owners, this file represents the peak of Android 7.1.2 Nougat optimization on a device that shipped with Android 4.1.2 Jelly Bean.
Features You Get With This ROM
Flashing lineage-14.1-20180419-UNOFFICIAL-gtel3g transforms your tablet in the following ways:
- Android 7.1.2 Nougat: Access to modern app APIs. Apps that require Android 5.0+ (which are many in 2024/2025) will finally install.
- Multi-window: You can run YouTube on the top half of the 8-inch screen and a browser on the bottom.
- Status Bar Customization: Unlike TouchWiz, LineageOS allows you to adjust quick settings tiles, battery percentage, and clock position.
- Privacy Guard: Granular control over what data apps can access (Location, Contacts, Storage).
- LiveDisplay: Adjusts screen color temperature based on the time of day (blue light filter).
4.4 Wi-Fi & Bluetooth
- Backported
bcmdhd driver patches from kernel 3.10 to 3.4.5 to mitigate KRACK vulnerability (WPA2).
- Bluetooth PAN (Personal Area Networking) re-enabled for tethering.
Origin and Context
- LineageOS is the successor to CyanogenMod, providing a stock‑like Android experience with added privacy and customization features.
- Version 14.1 corresponds to the Android 7.1 codebase, released in late 2016.
- The “UNOFFICIAL” tag indicates the build was not produced by the official LineageOS maintainers for that device; instead, it was compiled by a volunteer or a small team.
- The date 20180419 marks the compilation timestamp (19 April 2018), showing when the source code snapshot was used.
6. Installation Notes (Original Flashing Instructions)
- Recovery Required: TWRP 3.2.1-0 for
gtel3g.
- Prerequisite: Stock bootloader
T215XXU0AQA1 or newer.
- Wipe Required: Full factory reset (data, cache, dalvik/ART).
- Post-install: OpenGapps 7.1 (pico recommended due to /system partition size: ~850MB).
Performance Benchmarks (Then vs. Now)
On the original stock Android 4.4.2:
- Antutu (v5): ~18,000
- Boot time: 90 seconds
- App opening (Chrome): 8 seconds
On lineage-14.1-20180419-UNOFFICIAL-gtel3g:
- Antutu (v6): ~24,000
- Boot time: 45 seconds
- App opening (Chrome Lite/Bromite): 2.5 seconds
Complete Information Reference:
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)
Lineage-14.1-20180419-unofficial-gtel3g May 2026
Deep Dive: Lineage-14.1-20180419-UNOFFICIAL-gtel3g – The Last Stand for the Samsung Galaxy Tab 3 (GT-E210L)
In the fast-paced world of Android development, most custom ROMs have a short shelf life. However, every so often, a specific build becomes legendary for its stability, its timing, or its ability to resurrect a piece of hardware long after its manufacturer abandoned it.
Today, we are examining a specific relic from the golden age of custom Android: lineage-14.1-20180419-UNOFFICIAL-gtel3g.
For the uninitiated, this filename looks like a jumble of numbers and letters. For the niche community of Samsung Galaxy Tab 3 8.0 (SHV-E210L) owners, this file represents the peak of Android 7.1.2 Nougat optimization on a device that shipped with Android 4.1.2 Jelly Bean.
Features You Get With This ROM
Flashing lineage-14.1-20180419-UNOFFICIAL-gtel3g transforms your tablet in the following ways:
- Android 7.1.2 Nougat: Access to modern app APIs. Apps that require Android 5.0+ (which are many in 2024/2025) will finally install.
- Multi-window: You can run YouTube on the top half of the 8-inch screen and a browser on the bottom.
- Status Bar Customization: Unlike TouchWiz, LineageOS allows you to adjust quick settings tiles, battery percentage, and clock position.
- Privacy Guard: Granular control over what data apps can access (Location, Contacts, Storage).
- LiveDisplay: Adjusts screen color temperature based on the time of day (blue light filter).
4.4 Wi-Fi & Bluetooth
- Backported
bcmdhd driver patches from kernel 3.10 to 3.4.5 to mitigate KRACK vulnerability (WPA2).
- Bluetooth PAN (Personal Area Networking) re-enabled for tethering.
Origin and Context
- LineageOS is the successor to CyanogenMod, providing a stock‑like Android experience with added privacy and customization features.
- Version 14.1 corresponds to the Android 7.1 codebase, released in late 2016.
- The “UNOFFICIAL” tag indicates the build was not produced by the official LineageOS maintainers for that device; instead, it was compiled by a volunteer or a small team.
- The date 20180419 marks the compilation timestamp (19 April 2018), showing when the source code snapshot was used.
6. Installation Notes (Original Flashing Instructions)
- Recovery Required: TWRP 3.2.1-0 for
gtel3g.
- Prerequisite: Stock bootloader
T215XXU0AQA1 or newer.
- Wipe Required: Full factory reset (data, cache, dalvik/ART).
- Post-install: OpenGapps 7.1 (pico recommended due to /system partition size: ~850MB).
Performance Benchmarks (Then vs. Now)
On the original stock Android 4.4.2:
- Antutu (v5): ~18,000
- Boot time: 90 seconds
- App opening (Chrome): 8 seconds
On lineage-14.1-20180419-UNOFFICIAL-gtel3g:
- Antutu (v6): ~24,000
- Boot time: 45 seconds
- App opening (Chrome Lite/Bromite): 2.5 seconds
Complete Information Reference:
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)
