After unsuccessfully trying multiple times, I not only wiped all partitions, but also formatted Data Partition in the first step. This seems to have made the difference.

@vince1171 Ubuntu-touch is successfully installed on my Oneplus3. Cheers

@jussihi thanks for you response. Are you using a Oneplus3 or a Oneplus 3T? I use a Oneplus3 . Did you use any particular version of TWRP? Not sure how much it matters but what version of OxygenOs did you have on it before? I had the latest one 9.0.5 .
Also - does the host OS version matter?

I am trying to install this on a oneplus 3 . None of the steps throws an error and still the final boot is not successful. It just "hangs" displaying "1+" logo and "powered by android". What did I miss? Is there anything I need to do that you didn't mention? Neither regular nor edge is working. Both just "hang" after final reboot.

Any help is appreciated. Has someone been successful on this?

@Shannon64 probably what @Giiba meant is: is the screen unlocked. This unlocks access to the device over USB.

How comes that up to today not one single Halium port UT firmware is available for download? Is UT support for Halium still incomplete? After all some devices are "kindof" working since almost years. What is really stopping you from making ports available to a wider public?

Fritzbox don't natively support OpenVPN. They do support Cisco/vpnc based VPN. Unfortunately there is no simple way to create such a VPN tunnel on current Ubuntu touch.
You would have to use the terminal to setup and control such a VPN. After all it does work on a normal Linux based system.

Ages ago Mark Shuttlewoth had a vision of UT on many fronts. One of them was set top boxes. Do you know about any project working on SAT receiver UI using UT (unity)?

Is there any other interesting IOT device using UT UI? Or maybe someone working on it?

Anyone else wanna share experience with bluetooth carkit?

It was repeatedly stated that liberapay is working again. I cannot really find how to fund my account. I only see ways to draw money from account.

Paypal and Stripe seem to be for people receiving money. Am I missing something?

@rocky58 thanks for your info. Which UT device are you using? Are you running 16.04?