I recently had my first try on the arduino pro mini, 5v 16Mhz with a 328p chip.
I also bought one of these ftdi adapters with the DTR pin to program it.
So I started to test the board by uploading a sample blink program. It instantly got uploaded and it worked. I test it few more times by burning few other programs. Sometimes it did not, so I reconnected it and it started working.
Now after I tried to solder two female jumpers for the i2c pins a4 and a5, i burnt the blink program again. It got uploaded. But after this, it is not accepting any programs. The IDE keeps saying uploading for a long time and throws 10 attempts of errors, each time with different error codes.
Although, when i power the board, it initially blinks thrice for 5 times( I guess its the bootloader), and starts blinking with a 500 ms delay as i had programmed.
I am only powering it with vcc pin through the ftdi plugged to my laptop's usb port.
I am not sure where or what the problem is. Can someone please try to help me figure it out? TIA