Unfortunately, the FiiO X1 II (All new X1) does not have fast scrolling either. However, there is an alphabetical search function that allows you to find the title you are looking for more quickly.

I would try the following. Remove the SD card and press and hold the power button for about 15 seconds. Then switch on again with the power button.

Bro hesch schomol versuecht ih und us stellen?

Incorrect data can be reported directly in the mask.... or better still, report it directly to the customer service: digitec@digitec.ch But here in the community the most impractical place...

YES, the FiiO remembers the position when it is switched off and continues playing from there the next time it is switched on. (Source: http://www.fiio.net/uploads/ckeditor/pictures/4412/content_X1___06.jpg) . The function is called Resume after Poweroff.

No, the unit does not have radio reception.

Are the speaker and the headphones shown in the list when they are in paring mode? If BT is switched on at the Fiio and the device to be paired is really in paring mode, it should work. But remote diagnostics is always difficult...

There is certainly a small loss. Not audible in my opinion. However, the quality of the headphones is much more important. In the meantime, even the top league headphones offer Bluetooth transmission. The freedom from cables is a big plus point in many situations.

Yes, it does. You can select "all songs" and then start the shuffle function. Also possible within an artist, genre, etc.

I don't know the Fiio X5. With the Fiio X1 2nd gen, the media library has to be created first. This takes a while. Use the shortcut button, 3 horizontal lines (top left). Press it for 1-2 seconds. Select a letter or number. (with the scroll wheel and confirm with the OK button). It searches for the first letter or number that starts the line (of the song or folder). It lists all folders or songs that match the search. Important: download and install the latest driver from Fiio.net. File=X1II.fw Version = 1.4.1

2 x Yes. It remembers the position (but only in standby mode) and Bluetooth headphones also connect. If you switch the player off completely, it remembers the song (audiobook) but starts from the beginning. However, it doesn't use much battery in standby mode, I don't really switch it off.

No, unfortunately not. As far as I know, this technology comes from Sony. It would therefore have to be licensed (if that is at all possible for other manufacturers/third-party suppliers).