Released to address the growing complexity of MTK-based security, version 3.77 brought several quality-of-life improvements for repair shops:
It added stable support for removing Mi Accounts on devices like the Redmi 6, 6A, Note 8 Pro , and Xiaomi Play .
Because MRT Key is a powerful system-level tool, it is often flagged by antivirus software as a "false positive." Always download the setup from reputable sources like OfficialROMs or AndroidFileHost to ensure the file hasn't been tampered with.