fixing broken arduino nano?!

Dear all,

I have an arduino nano laying around, but it stopped working a while ago. I can't exactly remember what happened, but I think I hooked up too many LEDs...
Because it is quite expensive I want to look into the opportunities to fix it. When I connect it to my computer there is no port visible(macbook) and in vista it says "usb device not recognized". This makes me believe the FTDI chip is fried.
Is there a way I would be able to test the FTDI chip and is there a way to test the atmega168 chip, so when I am going to replace the FTDI chip I am sure it will work?
By the way the power LED is on and the reset LED blinks if I press the button.

Thanks in advance!
Tom

Hi,
as a last test I would suggest you plug the nano into a linux-box and run the dmesg command in terminal after that.
The Linux USB-Subsystem usually prints a detailed error-message.
If you know someone with a hardware-programmer you can also try to upload some code with the programmer, so you can check wether the Atmega is still alive.

You need a pretty steady hand to replace the FTDI-Chip, good luck with that ...
Eberhard

hmm I don't think anyone I know has linux... at least not anymore.

I have a mini USB adapter to program an Arduino mini, could that work if I connect the RX and TX pins?

I have a mini USB adapter to program an Arduino mini, could that work if I connect the RX and TX pins?

Honestly, I don't know :frowning:
Could it break something (the mini USB adapter ) same answer ... sorry

Eberhard

Does anyone have any thoughts on this problem?

Connecting the RX, TX, 5V and Ground does not enable me to upload programs... I've tested it with a Diecimila too, so I should connect an other cable somewhere?