I buyed a HDMI upgrade kit and I get it today. I install the kit on the RC and put cover on, but the usb is not working, after I remove the cover, the USB working. What's wrong with that? Thanks

Take another look at the tutorial video below. Do the C1 and C2 buttons beep, showing success? Double check that you have secured the snap tab connector behind the USB port -> actually, check all three snap connectors that the cable is fully inserted and the snap is pushed down.

terrylewis Posted at 2016-3-29 19:08
Take another look at the tutorial video below. Do the C1 and C2 buttons beep, showing success? Doubl ...

The C1 and C2 beep but tje usb still not working, here is the picture

The 3 Ribbon cables are a little tricky to get on. May want to just unplug them and reconnect and don't forget to fold down the little clamps on the connectors to secure the connection.  Also I had to upgrade my firmware on controller and drone after I installed mine.  

Nink Posted at 2016-3-29 21:53
The 3 Ribbon cables are a little tricky to get on. May want to just unplug them and reconnect and do ...

I tried many times, but still not work. Is the hdmi broken?

Possibly something pinched since it works with the cover off.
Also, when you connect a monitor you have go to the image transmission setting and enable "Simultaneous image output to app and HDMI"

DJI-Ken Posted at 2016-3-29 22:03
Possibly something pinched since it works with the cover off.
Also, when you connect a monitor you h ...

It will disable the usb by default? I don't have the hdmi-typec cable, so there's nothing I can do now?

DJI-Ken Posted at 2016-3-29 22:03
Possibly something pinched since it works with the cover off.
Also, when you connect a monitor you h ...

https://www.youtube.com/watch?v=WQ6kb0JpFXcI cannot use the dji go app.. Is that noemal?

OH Thanks so you are saying disabled USB or Disabled USB Video ??  It disables USB video yes and Switches to HDMI so you have to turn on but should not disable USB from working with DJI GO app (just the video on screen).  Make sure the board is not flexing when you put the cover on.  Also check there is nothing inside the cover that could be causing a short, not metal or particles. make sure board is securly screwed down so it doesn't move at all.  In the video they don't use any static prevention.  Maybe worth trying original board and make sure the ribbon connectors all still work.

jcs130 Posted at 2016-3-30 10:01
I tried many times, but still not work. Is the hdmi broken?

Wait, the difference is the HDMI is unplugged when it works, but plugged in it doesn't work.... Go into the GO App. I think there's a setting to display OSD. I don't have access right now.... Try messing with those settings...

Beat me to it...... ;-)

terrylewis Posted at 2016-3-29 22:15
Wait, the difference is the HDMI is unplugged when it works, but plugged in it doesn't work.... Go ...

I don't have the HDMI cable now, in the pictures the different is the case on or off~

Nink Posted at 2016-3-29 22:11
OH Thanks so you are saying disabled USB or Disabled USB Video ??  It disables USB video yes and Swi ...

I change back to the old one and it works fine, but after I change to the new one and put the case on it not working again...

jcs130 Posted at 2016-3-30 10:23
I change back to the old one and it works fine, but after I change to the new one and put the case ...

Goto GO App and select HD Settings. Toggle "Simultaneous image output to app and HDMI" -> on

and see if your display comes back...

jcs130 Posted at 2016-3-30 10:23
I change back to the old one and it works fine, but after I change to the new one and put the case ...

You said it's not working but you are saying you do not have a HDMI cable. Without a HDMI cable you cannot test a monitor.
But installing the HDMI module will still have the USB output working.
Your phone will only lose picture when you plug in a HDMI cable and monitor, then you enable in the settings like I posted above.

jcs130 Posted at 2016-3-29 22:23
I change back to the old one and it works fine, but after I change to the new one and put the case ...

Do you have a HD TV or a PC monitor with a HDMI port or a .... (or are you missing the HDMI Mini cable connector and all you have is the standard HDMI cable and doesn't fit ?

DJI-Ken Posted at 2016-3-29 22:58
You said it's not working but you are saying you do not have a HDMI cable. Without a HDMI cable yo ...

The Go App can not find the RC when I connect the RC to the phone.

Nink Posted at 2016-3-29 23:02
Do you have a HD TV or a PC monitor with a HDMI port or a .... (or are you missing the HDMI Mini c ...

I will try to buy a cable and try later, thanks~

jcs130 Posted at 2016-3-30 07:39
I will try to buy a cable and try later, thanks~

I understand that the options to enable or disable HDMI HD tab will be activated after installing the tiles. Because now they can not see the tab in HD

DJI-Ken Posted at 2016-3-30 04:58
You said it's not working but you are saying you do not have a HDMI cable. Without a HDMI cable yo ...

I understand that the options to enable or disable HDMI HD tab will be activated after installing the tiles. Because now they can not see the tab in HD

bojan62 Posted at 2016-3-30 14:38
I understand that the options to enable or disable HDMI HD tab will be activated after installing  ...

Correct, without the HDMI module installed you will not see this option.

DJI-Ken Posted at 2016-3-30 16:46
Correct, without the HDMI module installed you will not see this option.

OKAY. I understand.
On Friday, I will be installing.

bojan62 Posted at 2016-3-30 18:00
OKAY. I understand.
On Friday, I will be installing.

I received today, I installed and everything works.

I am having this same problem, I do not currently have a hdmi cable or monitor and installed the hdmi output board then I did not get video on the DJI GO app when the back cover is on (when the back cover is off I get video in the app and everything works.) In both cases I do not get the option for simultaneous output in the HD menu.
Question: Is it necessary for the HDMI monitor to be plugged in to get the menu option? Should this option show up the first time when the board is installed even without a HDMI cable/monitor plugged in?

If this is the case I will have to wait for the monitor.

Is this the problem that you had bojan62?