Change board type and com port while compiling - did i bricked my devie?

[bithost]

Hello,
I just got my first Arduino Pro micro. Downloaded Arduino IDE. Opened it and forgot to change board type and com port to match my device.
I pressed upload to test default code, when it started compiling, i noticed what board type and com port is wrong, so i changed to match my board. Finished compiling and uploaded code. And now only green light is on.
So the first question:

1. Is my Arduino pro micro bricked?:)
2. Why Arduino IDE allowed me to change board type and com port when it was compiling?

Thanks,
Tadas

[per1234]

Is my Arduino pro micro bricked?:)

Only temporarily. Do this:

1. Connect a jumper wire to the "RST" pin on your Pro Micro.
2. File > Preferences > Show verbose output during: > upload (check) > OK
3. Sketch > Upload
4. Watch the black console window at the bottom of the Arduino IDE window. As soon as you start seeing something like: PORTS {COM1, COM3, COM4, } / {COM1, COM3, COM4, } => {} momentarily connect the "RST" pin to the "GND" pin.

The upload should finish successfully and you should be able to upload normally from then on.

Why Arduino IDE allowed me to change board type and com port when it was compiling?

Regarding board type, it's a very good question and I'd like to see this fixed. In fact a proposal for a fix has already been made but not merged: #6106. However, there is already an issue report for this (#6035) so I'm closing this issue as duplicate.

Regarding port change, I find that to be very useful since I often forget to update the Port menu selection but am able to get it set correctly before the compilation finishes and I don't see any possible problems that could be caused by this.