Bricked or something like with Arduino UNO

Development Tools IDE 1.x
1

Hi, I was uploading a program with Arduino app from Mac os X to my Arduino uno (ATMEL MEGA 328P CH340G chinese clone) and the program was too much big. I try to reduce the program, but when I try to upload again to arduino, all time wrong. It says

avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00

until

avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00

when I connect the arduino to a power, the built-in led-pin 13 ON is always ON. And the led 'L' is always ON. When I try to upload a sketch, nothing happens. No leds blinking, nothing ... Always led 13 and 'L' ON, only.

I try push built-in reset button, but nothing happens.

Please, help!! what can I do?

2

I suspect that you have managed to (partially) overwrite the boot loader. You will need to burn the boot loader and see if that fixes the issue.

3

Omffffggggg I suspected the same ....
ok, so, is there any way to burn the bootloader without any other device? Just with the computer, with Mac OS X? I believe not but ... I am newbie with arduino.
And other question. Why this can be possible? Overwrite the bootloader uploading a sketch with the arduino ide? Do not has the arduino IDE any protection to not overwrite the bootloader when you try upload a too much big sketch? How can avoid this to not happens again?
Thanks.