Scan Bridge with Otter seems to hang during FW Update

I am using this on my iphone. The app shows Bridge SW 1.1 is available and uploads this but the mentioned "wait for yellow light " never appears. Instead the blue (wlan?) LED is blinking but if i try to use otter the bridge says “device occupied”. Every time i try to restart i am forced to do the update … but it seems to fail. Any ideas ?