Arduino Mega2560 as ISP to program another Arduino Mega2560

Other Hardware 3rd Party Boards
29

I have the same problem:

  1. when trying to bootload a custom Atmega2560 pcb with arduinoMega as ISP i receive: content mismatch at 0x1e000...

  2. i tried uploading blink sketch and no results even after the terminal says uploaded.

I dont know how to change the bootRST to 1 and the change required for boards.txt file. Can someone please clarify this.

Thanks