Fujiflm X-T4 - AF-C (Turn off the camera and turn on again)

[mlubomirov]

 

Hello Fuji guys,

I have issue with camera Fujifilm x-t4(firmware 1.03), when i shoot in continuous (CH) mode(AF-C). After few shots with 18-55;16-80;56 1.2 ( no matter lenses 27, 55-200 the problem is the same), camera return message on the screen: "Turn off the camera and turn on again". I checked the battery - the problem is with full charged and half charged battery. Then, i checked the SD card with UHD 1(64GB Sandisk extreme pro) and UHD 2(Lexar 64GB (2000) and 128GB(1666), the results are the same. Same error message. Then i checked the same settings  with only one SD card - the same error. After that, i reseted the settings - the same issue again.

You can see the short video with issue.(jump after 2 min).

Link:  https://youtu.be/e88P1MyHlZc

 

And now is the question.. have someone from you the same problem?

Marin Lyubomirov

Edited September 12, 2020 by mlubomirov

[Choccy]

I've not had this problem and I shot yesterday mostly in CH using my 16-80mm lens

[Fujimann]

I did have a similar problem with my X-T3 and a rented 90mm f2 lens. I've never had it with my other lenses. I believe, without proof, that the contact connections on lens to camera was at fault. I didn't have the problem after that with any of me lenses. When I returned the lens to rental, Fuji rep couldn't help with the problem either. 

 

[mlubomirov]

I cleaned the contact connection. And most important for me was, put the same SD card in two slots. Now everything look fine. 

[bem]

Great it was solved. It seems X-T4 is little "tricky" about SD cards, I have a common problem - I almost always need to insert the SD card(s) twice before Card Read error is is gone (yes I use Fujifilm recommened SD Cards, Sony UHS-II V90).
Anyway this is what is said in X-T4 user manual, Troubleshooting section about the error You had (same suggestion for all 3 errors):

FOCUS ERROR, 
LENS CONTROL ERROR or
TURN OFF THE CAMERA AND TURN ON AGAIN

Explanation:
Camera malfunction. Turn the camera off and then on again. If the message persists, contact a Fujifilm dealer.

I would have contacted Fujifilm support if the problem had persisted.

Have a nice day and I hope Your X-T4 will work fine for You now and in future.
I have X-T4 also (I had a lot of trouble with it first and it was a "lemon" and I got a new and it has worked fine).

/Bo 

Edited October 10, 2020 by bem