I have a Arduino Pro Mini 5V board with a firmware on it that I bought. Now I want to try out another firmware but I need to backup/save the original firmware to my pc and export a new sketch to my board. If the new sketch firmware dont work I want to write the old/original firmware again to the board.
So its not necessary to disassemble the original firmware just to save the hex and maybe export it back if needed.
Is this possible with the AVR Studio and can someone please help me a little bit with the procedure.
If the memory protection flags were set in the AVR processor then you might be out of luck. If not, you should be able to use AVRDUDE to download the ATmega memory contents as a .HEX file and upload it again. I've never done it so I can't provide details.
You can try talking to the bootloader as an STK500 programmer. If that doesn't work you may have to switch to a real ISP programmer connected thorough the ICSP pins.