My parents have two PBOs and I found I have to set the unit to SPDIF RAW in order to play 5.1 DTS or AC3 audio. However if I have 2 channel MPEG audio, I have to switch to SPDIF PCM Stereo. I'm looking for an alternative firmware that fixed that, plus supports Chinese text / subtitles. A thread on the Patriot site says the ACRBO European 4318 image works, but I can't find that anywhere. I'm also confused how to install these ACRBO fw's, because the latest 5440 patched one says to install 3582 first, which I also cannot find anywhere! Hope someone can help me. Thanks!
For ACRBO firmwares see "PBO Firmware — Alt. Cutom Firmware" from links on the left on this site page (or copy paste URL: patriot-box-office.wikidot.com/pbo-alternative-custom-firmwares)
Install ACRBO or any other.. Downgrade official firmware to P-02 and then use the images of any alternative firmwares.
To install 5440, you need "at least v 3582" [[www.acryan.com/forums/viewtopic.php?p=107175#p107175]].. Though I think it only applies to those with PlayOn AC Ryan hardware, but you should be able to use any of the PBO ACBO images first (pre GUI 2.0 I take it) and then upgrade to the 5440 image. All firmwares are in the alt firmware section mentioned above.
~~~ PBO w/ ACRBO 5440 Euro patched~~~