
Samsung Galaxy Tab S6 5G T866NKOU3BTJ2 is an Android 9 firmware for South Korea (KOO). It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. Compared with the previous build T866NKOU3BTI2 https://samfirm.shop/build/T866NKOU3BTI2: Android updated from Android 10 to Android 9. A newer build for SM-T866N is available: T866NKOU5DXJ1 https://samfirm.shop/build/T866NKOU5DXJ1.
Bootloader binary 3. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.
Pick your region (CSC) to download the matching firmware package.