[Xperia Z3 Q&A, Help & Troubleshooting] BiPentHexium:
Hello,

before I begin explaining my issue, I would like to apologie for my bad english.

I sometimes like to use my phone like notebook: connect mouse and keyboard to it. Z3 have OTG capability, so it(s fine. But one thing is not: ethernet adapters after updating to 6.0.1 using this doesn't seems to work.

First of all: i've thought, that you either have OTG or not. Not just for some devices. That it works like regular USB. It seems not. I have USB 3.0 powered hub conected to OTG cable and to the hub I've connected keyboard and mouse and tried to cennect already 5 different USB 3.0 gigabit ethernet adapters. They didn't work. On Android 5.1.1 worked my (all in one) USB OTG ethernet hub (3 USB 2.0, ethernet connector, micro USB wit OTG), but it was not powered, so I decided to upgrade.

Why? Simple. Power. I do this because for few day in near future I will be without my notebook (dedicated GPU is broken, i will have new one). I've been like this already for 3 days. And if i've been using my phone with keyboard and mouse (only use, which is comfortable for long time), I've noticed that is not possible to run this on battery. So my idea was to take as much as i can from the phone: controls and internet connection, and power that externally. And in addition buy the docking station and use the dock charging port. I've did all of this. And it works like magic: phone is powered from charger. All the time you might ask, why the hell I just don't use built in WiFi. Energy. That is the reason. WiFi just eat too much: if I pull up brightness of display and actually DO something on that phone, even wit plugged in docking charger, it just drain power faster, than charger charging (measured). For some reason the dock charging give about 0,45 A, not full 1,5 or something like that. Keyboard and mouse eats about 0,3 A, with some ethernet adapter it would be about 0,5 A. SO…a lot of power.

Android is based on Linux, so I have question (and I pretty much know the answer): is there ANY way how to install drivers for ethernet adapter on Z3? I obviously have root, I know about some terminal apps. But if I google this, it gives me only how to install drivers for phone on PC. That is not very helpful. I thing that this is most likelly impossible.

So I've searched something like list of supported devices. No suprise there: no relevant results. Sony Z3 AND Android 6.0.1 AND OTG device list, is probably too specific question.

Another idea what I had is try to use USB 2.0 adapters. You see, I wanted USB 3.0 (even though Z3 have only 2.0 (I still don't get it. Why the hell?)), because they have 1 Gb networks and I could use this adapter sometimes later for different device, like super thin notebook (if I ever would need some light device for travels). Another thing is the fact that 100 Mb is slow for large file transfer (movies and so on, so I have some entertainment, when I will not have my ntb). USB 2.0 can handle up to 480 Mb (in real life more like 300 Mb tops), which is still more than that network. But at this point I just gived up on this, and I will be happy if any ethernet adapter will work.

SO…do you know about any custom ROM, which would handle that? OTG USB ethernet support. Because not even that thing, which worked under 5.1.1 doesn't work under 6.0.1.

Sorry for long post, I needed to give you lot of informations, and why's.