Hi Stefan,

thanks for your suggestions! I managed to flash the chip without any problems once I connected 
both hold and write-protect pins to ICSP 3V3 (VREG led went on).



On Mon, Jul 29, 2013 at 9:12 AM, Stefan Tauner <stefan.tauner@student.tuwien.ac.at> wrote:
On Sun, 28 Jul 2013 23:47:40 +0200
Marek <mlf.conv@gmail.com> wrote:

> It seems that both hold and write-protect should be connected to 3.3V
> but I'm not sure how to achieve it with BP 3.6.

Why? Just connect them to Vcc.

Kind regards/Mit freundlichen Grüßen, Stefan Tauner