EOS 90D stopped working

[TonyCornfield]

My 90D stopped working today. Firstly the rear display looked normal but if wouldn't take a picture. Now nothing on rear display, but top display still working, whether power is on or off! Changed battery no different. Cleaned lens connectors, no different. Nothing works except top display which won't turn off.

Any suggestions please?

[Tronhard]

Hi Tony, and welcome to the forum:

Has anything changed IN ANYWAY, since when it was last fully functional?  That could be changing to a different battery or card, a bang or knock, getting wet:  ANYTHING?

[TonyCornfield]

Hi Trevor, thanks for replying. I was walking in a garden on a warm sunny day. Had taken some 50 photos and was pointing at a colourful acer tree, pressed the shutter and nothing happened. Turned it off and on again, back display worked, but couldn't move the point focus and the shutter wouldn't work. Cleaned and then swapped battery. Now the only display working is on the top of the camera and it won't turn off when power is turned off. So it just stopped between taking one photo and the next.

[Tronhard]

Thanks for your prompt response.

As an initial suggestion, Icrecommend turning the camera off.

Remove the battery and lens and leave overnight. Mwanwhile make sure the battery is fully charged, and if you have access to another, do the same to that.

Then replace both battery and lens and try again.

If you get power and a display do a factory rese. If no power try the second battery.

If all that fails, and you are in the USA call 1-800-OK-CANON to talk to a technician.

[TonyCornfield]

Thanks, will try this overnight tonight. Not in USA, in England so can't call that number. 

[Tronhard]

I am on a boat right now but the process is in your manual. Or you can browse through the wrench menu.

[TonyCornfield]

Hi, overnight without power didn't work.

Had to buy a replacement today for £845. I'm on holiday for the week and couldn't be without my camera. Hopefully, when home, I can get it repaired and sell it to recoup some of the cost.

[TonyCornfield]

Additional thought, I don't know how to do a factory reset?