I bought a Gira IP Router 2167 00 (hardware version I04) without a label on the side (so no password sticker).The device came with software version 2.0.134 and could only be programmed using ETS with the KNX/IP-Router V2.0 901610 V0.1 application.Of course, I wanted to upgrade it to a modern firmware (4.x) so I [...]