and its Marvell PXA986 chipset—which lacks open-source documentation—these builds often face significant hurdles.
Since there are no fully functional, source-built ROMs, the available custom ROMs are essentially heavily modified versions of the original Samsung firmware. Here are the primary options:
The Samsung Galaxy Tab 4 7.0 (SM-T210R) was a popular budget tablet when it launched in 2014. However, with its official software support ending at Android 4.4.2 KitKat, the device has long been obsolete for modern app usage. Many users turn to custom ROMs like LineageOS to revive older hardware, but the SM-T210R presents a unique set of technical challenges.
Open on your PC and connect your tablet via USB. The "ID:COM" box in Odin should turn blue or yellow, indicating a successful connection.
The carries the model number SM-T210R .
In Developer Options, change Window Animation Scale, Transition Animation Scale, and Animator Duration Scale from 1x to 0.5x or turn them off completely. This makes the interface feel instantly snappier.
I will push the source to my GitHub shortly and update this thread with a test build. Stay tuned.
Force-reboot the device directly into recovery by holding . Do not let the device boot into the normal OS, or it will overwrite TWRP with stock recovery. Step 2: Wipe the System
Take advantage of built-in features like Trust interface, advanced app permissions, and system-wide profiles. smt210r lineageos work
Connect your tablet to your PC while still inside TWRP. Your PC should recognize the tablet as an external drive.
: Even if a build is successfully flashed, the aging hardware struggles with modern applications. Some experts recommend alternative devices, such as a last-gen Amazon Fire 10 , for a smoother experience. General Installation Workflow
Most developers abandoned the 2015 Tab A years ago. The primary reason is the for the Exynos 3470. Unlike Qualcomm Snapdragon devices (which have extensive documentation), Samsung’s in-house Exynos chips from this era are notoriously hard to support past Android 7.0.
A compatible version of Team Win Recovery Project compiled specifically for the SM-T210R. However, with its official software support ending at
The wait is over. After weeks of debugging and kernel work, I am releasing the first working build of LineageOS for the Samsung Galaxy Tab A 8.0 (2017), model SM-T210R.
LineageOS is an open-source operating system based on the Android Open Source Project (AOSP). It focuses on performance, stability, and stripping away manufacturer bloatware. Upgrading your SM-T210R to a LineageOS-based ROM yields several immediate benefits:
Boot into by pressing and holding Power + Volume Down + Home simultaneously until a warning screen appears. Press Volume Up to confirm and enter Download Mode.