Canon 6D stucks on 'Writing to SD'

Hi everyone! I found Canon 6D (1 generation) that have been laying on the slelf for some years and now the time of it has came
BUT, when I opened it, put my SD card and tried to take a shot, the small lamp, that tells whether the card is busy, lights up and when I open the SD card slot, camera says to close it, because it writes a photo. That happens ALWAYS and even on the poorest quality of photo. I tried the card that works well with Canon 600D but the situation is still the same.
As well, when you take a photo without the card, the main screen turns black and the screen on the top says BUSY when you intend to take another shot.
Also, I`ve installed Magic Lantern, so that can tell us, that it reads the card well. And if I insert formatted card, it creates directories CANON100 and CANON101 (or so).
Any help is needed, don`t want such a good camera to become a piece of trash ^_^ Thanks everyone in advance!

 

Is it just the one card that you have tried?

If not, I would be looking at trying another sd card before giving up.

Gary

 

I would suggest you remove magic lantern, reset the camera to factory defaults in the menu and format the card (or a new one) in the camera. Do not use a card that has been formatted with another camera or with a PC, also do not use a micro SD card in an adaptor.

 

I`ve tried using another card, SanDisk Extreme 32gb, this one doesn`t work neither.

 

Will ask my friend for a 10 class full-sized card soon. Will write a post whether i`m succeeded.

 

So, tried SanDisk extreme pro 64 gb and that didn`t help. Now it is in the local service center. As i see it, that is luckily a motherboard crack or smth like that...