DJI,
I'm getting a SD card error.  There are no errors when I check it on my MAC.  Have over 100 flights on this SD card an never an issue.  Tried a new card and go the same error.  Help please. Phantom 4 with the latest update VOL 01.02.0503.  Tried a new card and having the same issue.  Just tried it on a friends Phantom 4 and the card works fine.  No error.  Has to be something with my unit.  
V/r,
Justin

Did you format the SD card using DJI go and the P4?

It was working fine up until today.  Then none of my SD cards worked.  The same cards work fine on my friends Phantom 4.  Checked for the latest firmware and it all up to date.  Don't know why it just all of a sudden started giving me the invalid SD card error.  

Hello Justin,could you please try to format the SD card in the DJI GP app?

I did and it will not format and it says it says there is a invalid SD card.  I've tried 3 other SD cards and all give me the same error.  All three of the cards work on a different Phantom 4.  

Hello Farout, You have the same case with the original SD card or not? have you tried to format it on your computer instead of APP? Please try to unplug it and plug it in for several times.

DJI Natalia Posted at 2016-9-6 18:57
Hello Farout, You have the same case with the original SD card or not? have you tried to format it o ...

Tried all the above.  I've contacted the support center and the drone needs to go in and be looked at by an engineer.  

farout4u Posted at 2016-9-10 07:40
Tried all the above.  I've contacted the support center and the drone needs to go in and be looked ...

That's fine. It will be fixed by the engineer, please do not worry about it.

DJI Natalia Posted at 2016-9-10 11:13
That's fine. It will be fixed by the engineer, please do not worry about it.

Yes, had the same problem with the original SD card.  There is a DJI Flagship A/S Center in Seoul.  They contacted me and I'm bring the drone in so they can take a look.