Samsung Galaxy J3 Top J337AZTUU5ASB2 is an Android 8.0.0 firmware for United States (AIO). 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 J337AZTUU4ARL1 https://samfirm.shop/build/J337AZTUU4ARL1: bootloader binary raised from 4 to 5, so after installing it there is no way back to older builds. A newer build for SM-J337AZ is available: J337AZTUSDAVK1 https://samfirm.shop/build/J337AZTUSDAVK1.
Bootloader binary 5. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.
Pick your region (CSC) to download the matching firmware package.