I have troubleshot everything:

1)Remove SD Card
2)Externally format sd card
3)Install the firmware on the sd card
4) Made sure DJI Go 4 is not running in the background


The symptoms:


1) Solid left led yellow light ( I know this is SD CARD problem, but even without a card gives trouble). Solid right green light
2) A Black Screen
3) gimbal is responsive to stabilization and movement.


I use it professionally so in a rush I ordered a second one to arrive tomorrow via Amazon.  Makes me want to invest in a regular gimbal instead.
Any suggestions? Thank you so much for your help.

May I know the model of your mobile phone? Have you tried other mobile device?
Have you tried to reset WIFI to the default? Please refer to the tutorial video below and let us know if it helps:

DJI Mindy Posted at 2017-11-16 23:27
May I know the model of your mobile phone? Have you tried other mobile device?
Have you tried to reset WIFI to the default? Please refer to the tutorial video below and let us know if it helps:
https://www.youtube.com/watch?v=lxB5uOoDQUU

Thank you, I'm going to try this.  The inital issue started while on a google pixel xl, but I had the same issue with an ipad.  Trying your suggestion.

DJI Mindy Posted at 2017-11-16 23:27
May I know the model of your mobile phone? Have you tried other mobile device?
Have you tried to reset WIFI to the default? Please refer to the tutorial video below and let us know if it helps:
https://www.youtube.com/watch?v=lxB5uOoDQUU

Mindy, unfortunately It didn't work.

GeraLuna Posted at 2017-11-17 07:49
Mindy, unfortunately It didn't work.

Did you have the log of upgrade in the SD card? Can you search the wifi of osmo? Please try to use the original SD card to upgrade your osmo. Keep us updated if the problem remains.

DJI Elektra Posted at 2017-11-17 23:06
Did you have the log of upgrade in the SD card? Can you search the wifi of osmo? Please try to use the original SD card to upgrade your osmo. Keep us updated if the problem remains.

I tried all those procedures too, and still get black screen.

Please advice on this

vit157 Posted at 2017-11-22 23:46
I tried all those procedures too, and still get black screen.

Please advice on this

Please provide the upgrade log for further check and you can post here. Thanks a lot.

DJI Elektra Posted at 2017-11-23 02:23
Please provide the upgrade log for further check and you can post here. Thanks a lot.

here is the log file

Hi!

Any reply on this?

vit157 Posted at 2017-11-28 00:18
Hi!

Any reply on this?

apparently the update was completed correctly, but you should wait for someone who knows exactly. Did you try reinstall the app ?

yes, I did. Even without app camera records damaged videofiles...

vit157 Posted at 2017-11-28 01:11
yes, I did. Even without app camera records damaged videofiles...

Have your tried to remove the SD card to see if the image will recover?
Besides, please dismount the gimbal to check the connector in the handle.
If everything is normal, I'm afraid the device will need to be sent in for diagnosis and repair.

hi, yes, everything is fine.

Is it possible that android app version is faulty?

I had this problem with my Osmo as well. Turns out the pins inside the handle were bent. Jay at the local DJI store was able to correct the problem in just a few minutes.

Don Logan Posted at 2018-10-30 19:20
I had this problem with my Osmo as well. Turns out the pins inside the handle were bent. Jay at the local DJI store was able to correct the problem in just a few minutes.

Quais pinos estão tortos , estou com o mesmo problema e não consigo soluciona-me me ajude por favor