[HELP] Arduino board is not being detecting by my PC!

Development Tools IDE 1.x
1

Hello everyone,

Recently, I had bought an Arduino Uno Board. It seem to be a clone, but it works perfectly fine in the first few days. Yesterday, when I am trying to test the IR receiver and at the moment when I am uploading the sketch, the Arduino IDE said the port (COM9) is not found. I was confused and tried to plug it again for a few times, but it still didn't seem to be working. I had searched for the problem and the solution in the internet for a while, but none of them helped. Apparently, the board is not broken or bricked, and the LED ON is turned on. The last sketch that I uploaded is the IR receiver testing sketch, which print the debug message in the serial, therefore I cannot determine if it is broken or not. In the next day (today), I test it again and suddenly it worked again magically. I was surprised and continue to program it again. However, after a few hours, it didn't work again. I was really worried and I don't even know if the Arduino is broken or not. :confused:

Useful information

  • The ON led is turned on
  • The pin 13 LED is lighted up, but it's extremely unstable. Sometimes it is very bright but it will gradually fade out. Really weird.
  • TX and RX pins are not turned on
  • When I put a LED to 5V and ground, it lights up perfectly fine.
  • When I plug it in to the computer, it the computer didn't play the amazing Windows 7 USB insert sound.

What I have tried to fix the problem:

  • Unplug and plug it again
  • Tried to use a different cable
  • Tried to use a different PC (Windows 10)
  • Tried to update the driver, however when I check the device manager, it didn't show any COM ports or whatever, also there's no unrecognized device. I have checked 'show hidden devices'.
  • Installed Arduino UNO driver (not able to start, error code 10)
  • Installed FTDI drivers (also not able to start, error code 10)
  • Reinstalled the whole Arduino IDE and drivers

Specs

  • Windows 7 Professional 64 bit
  • Arduino IDE 1.6.7

I guess

  • The board is shortened...?
  • The PC have some drivers problems?

Hope this can be fixed as soon as possible since I really wanted to program it and build awesome projects. Any answers are appreciated. :slight_smile: