Greetings
I accidentally inserted flash-card with the ML for 5DMiii (latest version that normally runs fine on the 5DMiii) into my Canon T2i. I got a brief message of wrong install of ML and then tried to shut the camera off, but it just froze. I took the battery and the chip out, but the screen never came back on. The viewfinder is working fine. The focus point is focusing and the flash comes out if necessary, but all other functions of the camera are not working any longer. I can not install an updated Canon system software since the menu can not be triggered or seen. I tried to push all buttons on the camera to have it come back, without success, and could not connect it to a computer via usb either.
Any suggestions how I can get this camera back online would be greatly appreciated. Careful NOT do to this by accident.
Thank you.