If you are experiencing issues with this specific 2018 build, developers and community members on forums like the e/OS Community suggest the following remedies: 1. The Camera "Fix" Many users report the camera failing to initialize.
The gtel3g variant of the Galaxy Tab E runs on a Spreadtrum SC7730SE chipset. Spreadtrum (now Unisoc) devices are historically difficult to develop for because source code is rarely released completely. The 20180419 unofficial build represents an impressive feat of reverse engineering, but it suffers from a few incomplete Hardware Abstraction Layer (HAL) bindings.
Alternatively, edit your build.prop file located in /system/ and look for the line: ro.telephony.default_network=0 Change the value to 3 (for GSM/WCDMA auto) to force the Spreadtrum modem to register on 3G networks.
If lineage-14.1 is too buggy for your specific 3G hardware, you have alternative options for the gtel3g : lineage14120180419unofficialgtel3g fix
adb shell settings put global captive_portal_http_url http://connect.rom.miui.com/generate_204 adb shell settings put global captive_portal_https_url https://connect.rom.miui.com/generate_204
The Samsung Galaxy Tab E 9.6 (specifically the gtel3g variant, model SM-T561) remains a popular candidate for custom ROM installations. Upgrading this legacy tablet to LineageOS 14.1 (Android 7.1.2 Nougat) breathes new life into the hardware, offering a cleaner interface, better privacy controls, and compatibility with modern apps.
However, being an unofficial release from 2018, . There are no newer security patches, no official updates, and no direct developer support. If you are experiencing issues with this specific
If your tablet is stuck on the LineageOS animation (the "bouncing dot"), it is often due to a "dirty" flash or incorrect partition wiping.
Go to → Network & Internet → Mobile Network → Preferred network type . Try switching between “3G only”, “2G/3G (auto)”, and “LTE/3G/2G (auto)”. Some users have reported success by forcing 3G-only mode and then switching back.
You must have TWRP (Team Win Recovery Project) version 3.x or higher installed. If lineage-14
This fix consists of multiple layers of troubleshooting, each addressing a different potential cause.
The Spreadtrum CPU runs high due to background sync. The Fix:
Inside TWRP: