Hi everyone, Mexirony here, first-time writer, long-time reader. Confirmed that the Alcatel A521L can be rooted temporarily with KingRoot as suggested above, but factory-locked fastboot is moldering the effort down to the ground every time you boot the system. No permanent root method developed as of today, so I decided to share a quick debloating table I wrote for the occasion to, at least, help somehow to alleviate the issue aiming the A521L to be as smooth and as efficient as if it was vividly rooted. Install Debloater here on your PC, then simply freeze services at your will following the table recommendations I enclose here down to prevent soft-bricking. Enjoy!