Thank you Brett!!
Here I used the flat end of a spudger to unlatch the connector top.
In my iMac the cable was stuck to the structure of the computer with a piece of foam tape. Pulling it very gently, gradually it detached with no damages.
From this point onwards I found very useful a flashlight to illuminate inside the iMac.
Reassembly: be careful with the screws! The magnets attract them and the screwdriver as well! Better to use a screwdriver without replaceable end insert. I had to use one of this second type and I struggled a lot!
You need a big clean surface free, or at least 2 or more free surfaces because the iMac, the glass and the LCD display are quite bulky. You'll also probably need space for a tablet or a laptop to read this guide while you are working. And don't forget room to work on the optical unit and for the tools you are going to use. I covered a large table with a double layer of bubble wrap. In my opinion it's better to put the glass face down to limit powder sticking on the internal surface.
Однажды Они, Вы смогут просмотреть график вашего рейтинга, накопленного за всё время.
Репутация еще не заработана.