A: No, you should not. The SM-T210 is the Wi-Fi-only version of the Tab 3. While similar, the hardware for 3G connectivity is different. Flashing an SM-T210 ROM on an SM-T211 can cause the loss of cellular functions or, worse, a hard brick. Always download ROMs explicitly labeled for "SM-T211" or "lt023g" (the 3G codename).
Proceed at your own risk. Flashing a custom ROM involves unlocking the bootloader and writing system partitions. This voids your warranty and carries a risk of "bricking" your device if instructions are not followed correctly. Ensure you back up all data before proceeding.
Download Odin3 for PC and a working TWRP Recovery .tar file for the SM-T211 from the XDA forums.
Click on the (or PDA in older Odin versions) button and select the downloaded TWRP .tar file. Go to the "Options" tab in Odin and uncheck Auto Reboot . custom rom for samsung galaxy tab 3 sm-t211
Upgrade from Android 4.4 KitKat to Android 7.1, 10, or even 12 (via unofficial builds), unlocking modern apps.
For those still using this tablet, which ROM provides the best balance of speed and app compatibility?
Android 4.4.2 (Highly optimized debloated stock base). A: No, you should not
Go to Install , select the ROM .zip file, and swipe to flash.
Boot into by pressing and holding Volume Down + Home + Power simultaneously until a warning screen appears. Press Volume Up to continue.
This is an older, text-based recovery. A stable version known as was specifically compiled for the KitKat bootloader and is a reliable alternative. Flashing an SM-T210 ROM on an SM-T211 can
Connect your tablet to your PC while still inside TWRP. Your computer should recognize it as an external storage drive.
Installing a Custom ROM on the Galaxy Tab 3 SM-T211 is a great project to salvage an old device. Android 7.1 (Nougat) is likely the "sweet spot" for functionality vs. performance on this hardware.