Hi, I’m under Win 7 64 bit. I followed what you wrote. I connected the USB cable and I think I released B2 button as fast as I can. The LCD is blank.
I checked the version the back of the box: 2.1.
Something is not perfect.
Uploader said: Uploading firmware.
Check log.txt for detail
====== K márc. 24 13:39:25 2015 ======
Error uploading firmware.
====== K márc. 24 13:40:55 2015 ======
avrdude: error: could not find USB device “USBasp” with vid=0x16c0 pid=0x5dc
I’ve got USBasp device under Device manager.