Navigate to your Proteus installation directory, typically found at:
Launch ISIS. Click on "Component Mode" (the P button). Search for "GY521" or "MPU6050". If you see the component, the installation is successful. Isis Proteus Model Library Gy 521 Mpu6050l UPD
To utilize the updated GY-521 model in Proteus, the designer must: Navigate to your Proteus installation directory