Default [Q] stuck in GT-N7000 screen, did battery reset, and now forever black screen

what i have done:
  1. got stock ics from kies long long ago
  2. got CM10.2 from official loader
  3. used the phone normally, crashing from time to time when i try to use chrome on android
  4. picked up the phone yesterday and found the phone stuck in this screen (of course, with the yellow triangle)...
  5. so i pulled the battery and attempted to restart

symptom:
  1. total black screen, no sound, no vibrate
  2. pressed 3 button combo, cannot go to recover mode, cannot go to download mode
  3. tried adb:
    1. using the same computer that i flashed CM10.2 (that means that it should have the same driver that could have driven the phone), and
      Code:
      Select Code
      adb devices
      shows an empty list of devices
    2. downloaded and installed 19April2013 driver, and
      Code:
      Select Code
      adb devices
      shows an empty list of devices
    3. installed kies, and
      Code:
      Select Code
      adb devices
      shows an empty list of devices
  4. the area below the camera (CPU?) is warm when i plug the phone(with battery) to my computer