checkoutmagento-2.1shippingshipping-methods
I only set my shipping method to free shipping and only for one specific country like this:
but the problem is this shipping method won't appear if the country value already selected first when the checkout page load, but if i refresh the page the free shipping method will appear, but if i change the country to another country and change back to the original country the shipping method won't appear unless i don't fill the postal code.
with postal code :
without postal code:
Try selecting a specific shipping method under Free Method in System -> Configuration -> Shipping Methods and expanding your shipping method of choice. Then, expand all other shipping methods and make sure "Free Method" is set to "none". Ensure this option hasn't also been set in another scope.
That was because of the fake zip code that I used for zipping/postal code filed, when you use fake zip/postal code Magento show a notice but not error so when is change zip/postal code as optional filed, and leave it blank, shipping method section refreshed and shipping methods updated
Best Answer
I am sure you have found a solution already but this is for others that may come across the same issue.
I was playing around with table rate shipping and had changed the store view Default Config to Main Website in order to upload the shipping rate csv file. I must have changed the free shipping rate then from enabled Yes to No.
Click system value on Free shipping to fix the issue.