Mac air not recognising kindle fire

Ok, thanks. As you should know, your MacBook Air (MBA) comes with two USB 3 ports and a single Thunderbolt port for connecting external devices to. In this case it would be one of the USB ports for the Kindle. Did you try connecting the Kindle to both ports? Did you try using another USB cable?

There were a number of Kindle Fire devices over the years:

• Kindle Fire - released in 2011

  Uses a propriety USB connector

• Kindle Fire HD - released in 2012

  Uses a USB 2 connector

• Kindle Fire HDX - released in 2013

  Uses a microUSB 2 connector

• Kindle Fire 7 - released in 2015

  Uses a microUSB 2 connector

Which one is yours?

You mention that you are using an Android File Transfer app. I am assuming that that app runs on the Kindle ... correct?

Is it the MBA that doesn't recognize that the Kindle is attached to it or that the Kindle does not recognize that the MBA is connected when trying to use the app on the Kindle?

Ok, so I understand that you tried multiple cables and ports. Thanks.

Again, I still need your help in understanding:

1. Which Kindle do you have?
2. Does this app run on the Kindle or the MBA?
3. When the Kindle is physically connected to the MBA by USB, does it show up on the MBA as a folder, called Kindle?

Was this always an issue or just started to happen recently?

What happens when you connect your Kindle Fire to an available USB port on your MacBook Air? Did you try all of the notebook's ports? ... and try another "known good" USB cable?

In theory, when you connect your Kindle to one of the notebook's USB ports, the Kindle should display that it is entering USB Drive Mode. Also a new volume, called Kindle, should appear on your Mac ... does it?

Which exact model is your MacBook Air? Which version of macOS is it running?

Again, thanks for your patience with my questions.

If the Mac is not recognizing that your Kindle is attached to it, I doubt that the Android File Transfer app will have any luck doing so either. There are other apps out there that you can use, but again, they won't work if your Mac can't "see" the Kindle.

Do you have another Mac or PC available (or can borrow) to see if they can "see" the Kindle? If so, you and they don't either, the issue will be with the Kindle. If they do, then it would be your Mac ... and, at this point, I'm not sure what else we can do to get your MBA to work with it.

The following may not be helpful, but I found it at the Android Help site:

Transfer files between your computer & Android device