Messages

Are you able to access firmware option in EOS Utility?

Yes, I could. It shows the camera's running on 1.3.6, and prompts whether to upgrade from 1.3.6 to 1.1.3 and upon clicking next, the camera shows blank screen, and on the computer it shows "Press SET button to continue installing the firmware", ignoring the blank screen I press SET button on the camera gives me nothing. I tried with firmware 1.1.3 & 1.2.3 in both I'm stuck on the blank screen.

Just reinstall and read screen content.

I'm having an issue downgrading from 1.3.6 to 1.1.3 or 1.2.3, while using the EOS Utility method the camera's screen goes blank after "3 second Rear LED Blink". Am I doing anything wrong?
I formatted the SD from Laptop, and then again on Camera and followed the EOS Utility downgrade setup.

I'm using an 8GB SD from San Disk. It's really old.

Is it an old battery? I have old batteries that behave like that. The canon charger shows a green light at the and, but the batteries are empty within a few minutes if you put them in the camera.

If two years is old, then yes it is, but is it?

Format card in cardreader.
Format card in cam.
Downgrade to firmware 1.1.3 or 1.2.3 using EOSutility (via USB)
Format card in cam.
Copy extracted nightly build content (matching installed firmware version) to card.
Run install and wait for timeout to complete.

After that you can do what you like. ML is deinstalled from cam (bootflag is no more) and disk (files are present but card isn't bootable.

I'll have to reinstall the magic lantern and now how to uninstall it? I don't really quite understand the "wait for timeout" part.

Right now, I've reinstalled ML and uninstalled and updated the camera's firmware to 1.3.6 - the rear Card Access light is blinking non-stop could that be the possible reason why the battery's draining?

I'll have to downgrade it to 1.1.3 and place the magic lantern files for 1.1.3 firmware and install it? - Could you please tell me the method to uninstall Magic Lantern completely off of the camera and update it to 1.3.6?

I was using Magic Lantern on my 5D M3 for well over three years, never had a single problem using it and the camera is in almost mint condition. I had to sell my 5D recently so I've uninstalled the magic lantern from in-camera using low-level format as mentioned in the FAQ and let it get back to the old Canon firmware without ML this time, removed my SD & formatted it on a laptop and now using that SD in a different camera. Now the person who bought is reporting that the battery drains completely keeping a fully charged battery inside the camera overnight. Please help out! Thanks!

Hello all. I have been planning to install Magic Lantern for a while now on my 5D M3 (1.3.3), and have decided to downgrade from 1.3.3 to 1.1.3, since ML recommends 1.1.3. I had recently given it for service and it returned back with the firmware of 1.3.4, so my question being, is it safe to downgrade from 1.3.4 to 1.1.3?

Thanks in advance.