Update 08/07/2021Still with me and working flawless after almost 3 years, every update of iOS has been received thru these years, no issue at all.I was very concerned about buying a refurbished item from Amazon, but after received the MacBook Air yesterday I have changed my mind. First of all let me tell you the item is in great condition, small scuff and dins in the back due to the normal use, display in excellent condition as Keyboard and trackpad. Battery hold the charge for 4 hours, better than expected and described on apple website. I was able to upgrade to IOS Mojave last night without any problem. I've bought a Mosiso plastic hard cover with Keyboard cover for $13 as you can see in picture. In conclusion, despite some bad reviews I can say I got an amazing Macbook for a very good price, that means an excellent deal was made, so I recommended 100% and you can return it anyway if you are not satisfied. Happy customer