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Hi Werner, weirdly it seems to be this wiring. In any case I get a readout. _____UART____ /Pin 4 - VCC| red |Pin 3 - TXD| |Pin 2 - RXD| \Pin 1 - GND| black However, I am now confronted with the prompt "nextcloudpi login". "root" and "ncp" do not work, nor any of my other logins. I am using a PW manager, so it cannot really be that I am getting anything wrong. Do you know what the cause could be?

Hi Werner, thanks a lot for your recommendations. I finally found some time to go back to the issue. I bought a CP2102 USB UART Adapter as you recommended in your video. The Odroid h1 has a Molex 5268-04a coonncetor mounted on its PCB. In the "ODROID Port description of UART Connector" (https://wiki.odroid.com/accessory/development/usb_uart_kit) the pins are described like follows. However, on the board itself the pins are not marked. I would not want to destroy anything here. Do you know which is which? _____UART____ |Pin 4 - VCC| |Pin 3 - RXD| |Pin 2 - TXD| |Pin 1 - GND| \___________| BTW: In the manual (https://magazine.odroid.com/wp-content/uploads/odroid-xu4-user-manual.pdf#page=7) the baud rate is specified with 115200.

My Nextcloudpi was running like a charm for years on an Odroid HC1 (no possibility to attache a monitor). It was still running Debian Buster 19.11.7. It was running so well that I neglected it a little too much. And then, when I attempted to upgrade the distro, it went bad. During the upgrade the following error occured: `` Err:5 http://httpredir.debian.org/debian buster-backports Release 404 Not Found [IP: 2a04:4e42:6f::644 80] Ign:6 http://mirrors.dotsrc.org/armbian-apt buster InRelease Err:7 http://mirrors.dotsrc.org/armbian-apt buster Release 404 Not Found [IP: 2001:878:346::116 80] Reading package lists... Done E: The repository 'http://httpredir.debian.org/debian buster-backports Release' no longer has a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. E: The repository 'http://apt.armbian.com buster Release' no longer has a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. Something went wrong. Fix it and try again `` Then I followed this [guidance](https://forum.armbian.com/topic/19237-armbian-upgrade-from-buster-to-bullseye/) In `/etc/apt/sources.list.d/armbian.list` I commented out the armbian repo and in `/etc/apt/sources.list` I changed from buster to bullseye. The I ran `apt update`, then `apt upgrade --without-new-pkgs`, then `apt full-upgrade`and then I rebooted the system. The Ordoid HC1 seemed to have started up again, I also see it my router, but it cannot be accessed via SSH, via the webbrowser nor the web-domain. 1. Is there a way to fix the install? 2. If not, is there a way to retreive the data and configs? (Not sure if the drive was encrypted. What is the default of Nextcloudpi?) Would really appreciate help.