I'm looking for a way to disable the AVLS feature present on some models of European PS Vita's. For those who dont know AVLS (Automatic Volume Limiter System) is a setting which limits the maximum volume level:- http://manuals.playstation.net/document/gb/psvita/settings/avls.html When you attempt to turn up the volume it will stop at 21 'clicks' out of 30, and 'AVLS' flashes on the screen:- Apparently this was implimented in European PS Vita's due to European regulations?:- http://community.eu.playstation.com/t5/PS-Vita-Support/AVLS-Problem/td-p/17817920 http://www.gamefaqs.com/boards/620272-playstation-vita/69573738 Early 1000 model European PS Vita consoles have AVLS, but this can be permanently disabled by unchecking a tick box in the "Sound & Display" settings:- Later 1000 models and all 2000 'slim' model European PS Vita's have the same AVLS setting, but unchecking it only disables AVLS temporarily - either for 20 hours or until you turn the system off and on again. In particular this last bit is really annoying, as it means everytime you restart your PS Vita you have to go into the settings to disable AVLS again before you can turn the volume up fully. Here is a picture of the message which pops-up everytime you untick the AVLS setting on a 2000 slim model:- Note that this pop-up message does not appear at all on early 1000 models. I believe this change occured when Sony switched the audio DAC chip used in the PS Vita:- Early 1000 models = Wolfson Microelectronics WM1803E Later 1000/All 2000 models = Wolfson Microelectronics WM1804E Presumably the new audio chip is capable of louder volumes, so the AVLS setting for Europe had to be adjusted? TLDR: I want to permanently disable AVLS on all European PS Vita models using something like VitaToolbox.