The is the carrier-locked version of the Galaxy A51 5G sold in the United States by major providers like AT&T and T-Mobile.
The term (also known as Binary 3 or SW Rev. 3 ) refers to the version of the phone's Bootloader . Samsung A51 5G SM-A516U Q (Android 10) (BIT 3) ...
: When it launched in 2020, it was one of the first affordable phones to bring 5G connectivity to the masses. The is the carrier-locked version of the Galaxy