Alter form in My Account Page of Drupal

Question

I added the Two Fields newly one is Name and Mobile .

When I am using the alter in this

$form['field_name']['#access'] = FALSE;

it works, when I want to change the title, type, likewise and button to change the name with OTP of Mobile Number its not working

$form['field_name']['#title'] = t('member name');

My account image

Answer 1

I find out the solution for this

$form['field_first_name']['und']['0']['value']['#value'] = 'XXXXX';
$form['field_first_name']['und']['0']['value']['#attributes'] = array('readonly' => 'readonly');

Try this. Suggest me Ok.