How to update data to Mobile Services - Android (Windows Azure)

package com.example.thaicreate;

public class MyMember {
	
	@com.google.gson.annotations.SerializedName("id")
	private int mId;
	
	@com.google.gson.annotations.SerializedName("username")
	private String mUsername;
	
	@com.google.gson.annotations.SerializedName("password")
	private String mPassword;	
	
	@com.google.gson.annotations.SerializedName("name")
	private String mName;	
	
	@com.google.gson.annotations.SerializedName("tel")
	private String mTel;		
	
	@com.google.gson.annotations.SerializedName("email")
	private String mEmail;	
	
	public MyMember() {
		// empty
	}
	
	public MyMember(String username, String password, 
			String name,String tel,String email) {
		this.setUsername(username);
		this.setPassword(password);
		this.setName(name);
		this.setTel(tel);
		this.setEmail(email);
	}
	
	public final void setId(int id) {
		mId = id;
	}	
	public int getId() {
		return mId;
	}
	
	public final void setUsername(String username) {
		mUsername = username;
	}
	public String getUsername() {
		return mUsername;
	}
	
	public final void setPassword(String password) {
		mPassword = password;
	}
	public String getPassword() {
		return mPassword;
	}
	
	public final void setName(String name) {
		mName = name;
	}
	public String getName() {
		return mName;
	}	
	
	public final void setTel(String tel) {
		mTel = tel;
	}
	public String getTel() {
		return mTel;
	}	
	
	public final void setEmail(String email) {
		mEmail = email;
	}
	public String getEmail() {
		return mEmail;
	}	
}

    	//*** Update Record ***//
        final EditText txtPassword = (EditText)findViewById(R.id.txtPassword); 
        final EditText txtName = (EditText)findViewById(R.id.txtName); 
        final EditText txtEmail = (EditText)findViewById(R.id.txtEmail); 
        final EditText txtTel = (EditText)findViewById(R.id.txtTel); 
        
    	
    	//** Select Record ***//
		mMyMember.where().field("id").eq(id)
		 .execute(new TableQueryCallback<MyMember>() {
			
			public void onCompleted(List<MyMember> result, int count, Exception exception, 
					ServiceFilterResponse response) {
				
				if (exception == null) {
					MyMember item = result.get(0);
					/*** Update Item ***/
					item.setPassword(txtPassword.getText().toString());
					item.setName(txtName.getText().toString());
					item.setEmail(txtEmail.getText().toString());
					item.setTel(txtTel.getText().toString());
					
					// Update Record ***/
					mMyMember.update(item, new TableOperationCallback<MyMember>() {

						public void onCompleted(MyMember entity, Exception exception, ServiceFilterResponse response) {
							if (exception == null) {
								Toast.makeText(UpdateActivity.this, "Update Data Successfully", Toast.LENGTH_SHORT).show();
							} else {	
								Toast.makeText(UpdateActivity.this, "Update Failed!", Toast.LENGTH_SHORT).show();
								Log.d("Error : ",exception.getMessage());
							}
						}

					});
				} else {
					Log.d("Error","Error Load Data from Mobile Service");
				}
			}
		});