No signal at all, or card reader? maybe something new or a fix!
Im having the same issue, or maybe kind of...the sim reader is working i guess cuz if i take the sim card out of the reader the phone tell me that i need one to use my phone, now if i put the sim back i cant get signal, AT ALL!! cant even search for networks but it recognize cuz the warning goes off.
Now two days ago i watched a video on youtube about how to increase the signal on the galaxy note and what the guy did was just put a wire into one of the Antennas holes ( he was using the N9700) im using the i717 so u put the wire into the antenna receptor side of the sd card, and bum! works! but not all the time cuz i cant put the back plate back to close the note, and even if i figure out how to put it back , the signal goes off :/, maybe is something with the antenna but i cant find how to replace that :s
Btw: changed rom, root, radio-modems, opened the phone taking all apart and put it back again lol, and the same thing also checked the white wire of the antenna who gets the signal i guess and has no damage.
edit 1: this is the video