Update your TWRP recovery to the latest version available for the SM-T531. If it persists, you may need to edit the updater-script inside the ROM zip to remove the assert lines. 2. RIL (Radio Interface Layer) Fix
Immediately after the ROM, flash the GApps zip. Do not reboot between these steps.
While this build is remarkably stable, users often encounter three specific hurdles that require "fixes" during or after installation: 1. The "Status 7" Error (TWRP Fix) lineage14120180419unofficialgtel3g fix
If the tablet feels sluggish, set this to "At most 2 processes." Why stick with 14.1?
Go to Settings > About Tablet and tap "Build Number" 7 times. In Developer Options, set Window, Transition, and Animator scales to 0.5x . Update your TWRP recovery to the latest version
In TWRP, go to Wipe > Advanced Wipe and select: System, Data, Cache, and Dalvik .
If you get a "Status 7" error in recovery, it’s usually because the script doesn't recognize your device model name. RIL (Radio Interface Layer) Fix Immediately after the
The Samsung Galaxy Tab 4 10.1 came in several variants (Wi-Fi, LTE, and 3G). The (SM-T531) requires specific kernel drivers to handle the cellular radio. The 20180419 unofficial build became a community favorite because it balanced the modern features of Nougat with the limited hardware resources of the Snapdragon 400 processor. Common Issues & "The Fix"
It is often helpful to "Wipe Cache/Dalvik" one last time before rebooting. Reboot: The first boot may take 5–10 minutes. Post-Installation Optimization