Well, I tested the device with my wonderful LG© CRT TV,
it works well, I watched the answers on the topic with it, kind of better than my 2G feature-phone with shitty softs, a lot of good softs on it like an emulator and Marble, no lag, some Pr0n images on it , maybe my poor buddy was a "fap-phone" for a moment

I tried the camera but it didn't work (blueish black tint but no image), then I tried taking a photo but it said me that there was no room for other photos (with more than 30GB free)

To answer your answers, I'm definitely going to try repairing this guy, but I don't think I'll will use the original µUSB but I will make the mod with the real USB port, a lot more useful, so first, I check what is dead and what is not, then I'll reflash everything with some wires inside, at that time I will have received the new µUSB, that I'll solder with hot air and solder paste I think finally if everything is good, New LCD and when I'll have some money to throw away:
New digitizer, screen protector and housing.