calibrating a gyroscope controlled tilt platform(Android)

Hey y’all, so I am trying to make a platform tilt with gyroscope controls. When I load the game the platform is already tilted as my program seems to create a constant torque based on my phone’s physical location relative to the y axis. I need to be able to set my phones returned location to (0,0,0) or create a torque that can oppose the constant movement of the phone so that these controls are more manageable. Any ideas?

	public class balance : MonoBehaviour {
		public float torque;
		public Rigidbody rb;

		void Start() {
		rb = GetComponent<Rigidbody>();
		void FixedUpdate() {
		Input.gyro.enabled = true;
		rb.transform.Rotate(Input.gyro.attitude.x, 0, Input.gyro.attitude.z);

using UnityEngine;
using System.Collections;

public class Gyro : MonoBehaviour {

	Vector3 rot_ini;
	public float _speed;

	void Start () {
		rot_ini = transform.rotation.eulerAngles;

	// Update is called once per frame
	void Update () {
		 transform.rotation = rot_ini + (new Vector3(Input.gyro.rotationRate.y,Input.gyro.rotationRate.z,-Input.gyro.rotationRate.x)*_speed);

Adjust the axis as needed in the new Vector3
I’m using this for my gravity but it should work for rotation