Rebel T7 won’t shoot and screen won’t come on

[Elizalam]

I have tried everything I can think of to fix this camera before outing it in to the shop. This is my last hope.
I can get the screen to come one so I can get into any setting when I try to take a photo the flash will pop up but it won’t focus. It read 60 4.0 iso 800 or it will read 60 3.5 iso 1600 or it will just say busy. It was working fine one day took the battery out to charge and when I put it back it it was doing this. I don’t know what to do now beside take it to a shop and hope they can fix it. Any ideas?

[Tim]

Elizalam, 

There are a few troubleshooting steps I'd like to help resolve this issue. We'll reset the camera, which should restore it to a default state. These steps should clear out the memory and thereby any errors which may be present.

- Anything attached or installed in the camera — memory cards, the lens, the battery, battery grips should all be removed.

- Once the lens is off let's check it using the steps below.

a) Clean the lens contacts* to restore connection with the body.

b) Try using a different memory card. All memory cards should be properly formatted in your camera prior to use.

*Warning - Do not clean lens contacts on either a Canon lens or the camera body with an eraser! It's easy to rub off the gold plating on these contacts and end up with data communication problems! Our strong recommendation is to use a soft, clean, micro fiber cloth. Please do not use anything abrasive.

c) Try using a different Canon EF series lens. It doesn't have to be the same focal length as the one you were using.

d) If you are using a third party lens, we recommend discontinuing its use. There can sometimes be communication error related issues with third-party lenses. Ensuring that you're using a Canon lens eliminates that as a potential factor in the error.

If the issues seem to persist the next step would be to send the equipment to Canon for service.  You can set up a repair on Canon's web site at www.usa.canon.com/repair

[ebiggs1]

"If you are using a third party lens, we recommend discontinuing its use."

If you are using anything not Canon brand either remove it, IE, a battery grip, etc or replace it, IE, an off brand battery. Then reset the T7 to factory.