Tôi cập nhập bản 6.0.1 không còn hiện thị đám nữa thay vào đó là dấu gạch như thế này mong khắc phục

Yes, I'm confused. Lightroom 6.01 was not an iPhone app, so I don't understand why you are comparing an iPhone app with Lightroom 6.01. They are fundamentally different programs designed completely differently. Lightroom 6.01 stores images locally on your hard drive and utilizes a local catalog. Lightroom on your iPhone stores images in the cloud and does not utilize any local storage, at least from an iPhone. So what is it that you are trying to do?

I don't read or understand your language. However, I believe you installed Lightroom, the Cloud version that stores images in the cloud. If your intentions were to upgrade to the version that stores images locally like your previous version then you should have installed Lightroom Classic.