Arduino UNO usb not recognized (no reset pin)

Other Hardware 3rd Party Boards
1

My arduino UNO is unrecognized on my windows pc. The TX RX lights do not light up while connected to PC. I'm guessing i have to get it into DFU to fix the problem. unfortunately i dont have the reset pins below. Furthermore the IC beside the Tx Rx is not a square as in the pic below , its a rectangle with pins on only 2 opposite sides beside the pic having pins on all sides .What can i do ?
Thanks in advance...
info about my arduino uno:
USB to serial part of the circuit, using PL2303, compared to the original Duemilanove FT232RL, performance is more stable, faster.
USB to serial part of the product is not MEGA8U2! :frowning:
http://item.taobao.com/item.htm?spm=a1z10.1.11.23.12cfd7&id=12654890315

Uno-front-DFU-reset.png
Uno-front-DFU-reset.png1358×1014 223 KB

2
  1. You don't have a Uno. You have whatever your cheap knock-off is called.
  2. There is no DFU mode because there is no ATmega8u2 to put into DFU mode
  3. "USB to serial part of the circuit, using PL2303, compared to the original Duemilanove FT232RL, performance is more stable, faster"
    Clearly that isn't the case, because your board isn't working...

Actually the PL2302 is one of the worst USB to Serial chips on the market.

You don't have an official Arduino (or even a decent clone of one). You need to contact whoever you bought the board from for support. This forum won't be of much help.

3

Sounds like you need to find and install the drivers for the PL2303 chip. Since that chip is not used on any Arduino board you will probably have to use Google to search for the drivers.

4

I had the driver and I had it working for a while but then suddenly while doing my project it stopped :?

Thank you for the reply :slight_smile: yeah it seems to be the worse in the market!