what is frp lock on mean/
T-Mobile Galaxy S6 Edge Update Does Not Lock Your Bootloader! T-Mobile Galaxy S6 Edge Update Does Not Lock Your Bootloader! Discussion in 'Android News' started by DroidModderX, May 2, 2015. â. Last week a reddit poster shared a that his T-mobile Galaxy S6 Edge had received an OTA update bringing his device up to Android 5.1.1. He also posted a photo which showed that his bootloader was locked, or at least that is what he thought he was seeing. Their was a message in the bootloader Custom Binary (RECOVERY) blocked by FRP lock. FRP simply means that Factory Reset Protection is prohibiting the phone from flashing a custom recovery. This is a security feature included in the latest version of Android which makes it difficult for a thief to take over your phone.