When do you need to format the sd card?
The app asks me often if I want to format the card. When you do, it erases the .bin file used to update the firmware.
So, when does card need to be formatted? It seems to make no difference other than erasing the .bin file.

Formatting SD cards is usually required to make them compatible with the device that they will be used with. We would advise you to format the SD card in the DJI GO App.
If you'd like to format it with your own PC, please format it as FAT32, cluster size 32KB for a card with capacity of smaller than 32GB, and exFAT, cluster size 128KB for a card with capacity of larger than 32GB.
Please note that if you don't format the SD card with the proper cluster size, you may be reminded constantly to format it, or SD card will reject to record the video, or other abnormal appearances may happen.

I tried re-formatting it with my computer. It was already FAT32 with 32KB cluster. But I re-formatted it anyway. On starting up the Inspire It asked me if I wanted to format the card.
The Camera is recording images fine, so, I am ignoring it.
{:2_33:}

Aeromirage Posted at 2016-3-5 22:40
I tried re-formatting it with my computer. It was already FAT32 with 32KB cluster. But I re-formatte ...

Format from the app?

Zbounce Posted at 2016-3-6 08:03
Format from the app?

You can format the SD card on the Aircraft. Go to the Main Go app page.  Fire all equipment up like you are going to fly.  Load Sd card in aircraft that you want to format.  On the camera settings ( FarRight on app screen )  go to the Tool Icon.  scroll down to format SD Card.  Piece of Cake

Cheers-donnie

The DJI GO app asks me every time I turn on the aircraft if I want to format the card. I have done it in the aircraft and it erases the firmware .bin file as well as the result file.
When I load pictures into my computer, I delete the pictures / videos only. So why does the app ask me every time if I want to format?

Aeromirage Posted at 2016-3-7 10:25
The DJI GO app asks me every time I turn on the aircraft if I want to format the card. I have done i ...

It may be the kind of card you are using. And you only need the BIN file on the SD card for when you update. After that you can delete the files. After updating firmware, install each battery so if the update has a battery update you can update each battery. After that, there's no reason to leave the anything on the card besides your photos/videos.

It's the 16 gb micro sd card that came with the X5 Camera.
OK, that answers that. I thought you needed to keep the .bin file on the card all the time.
Could this be why the app always asks me if I want to format the card?

Aeromirage Posted at 2016-3-7 10:54
It's the 16 gb micro sd card that came with the X5 Camera.
OK, that answers that. I thought you nee ...

Possibly, format the SD card and see if it clears it up.