Did I just brick my ATMEGA 2560? I bought an ATMEGA2560 on eBay and programmed it with Arduino IDE 1.6.9 using the USB cable, and the LED blinked as expected - All well and good.

Now I wanted to program the mega from my UNO as follows:


Uploaded ArduinoISP to the UNO
Changed the Board to Mega2560 and changed the Programmer to Arduio as ISP
Connected the two ICPS sockets with a 6 wire cable, where pin 5 on the UNO ICPS is cut and instead connected to D10 on the UNO
Upload the Blink sketch: IDE says Uploading for a minute, then some errors:

avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_getsync(): timeout communicating with programmer


5) Upload Using Programmer: Activity on the UNO (RX/TX) and the LED on the mega lights constantly - And I can no longer program the mega using the IDE

Any pointers to what I did wrong and how to fix it?
Best regards
Ah, the problem seems to be in the IDE - Something with the fuses when programming the mega (I won't even pretend to understand that yet).
I upgraded to 1.6.12 and everything works like a charm.

Best regards
Stefan