I'm also on firmware 1.0 and got popping on aes input.
I would like to upgrade firmware, but it seems not possible because of hardware design defect on the firmware upgrade process.
Sad.
Let us know if you have any updates on this question of firmware in the coming weeks/months.Pavel was working on trialing firmware upgrades, but I lost track of what became of that.
I have FW version 1.42 (SN 94) - Not sure if there is a more recent version given Machismo post:
In terms of functionalities, 1 spdif +1 optical input would have been useful (for some people)....arrived today
Serial number 168, the firmware version is 1.42