Thanks Mikerr for verifiying. This proofs that it got nothing to do with manufacturing date. And yes I soldered the pin header on bottom because I will plug my pi later to a board what go the female connectors. Don't worry, I didn't reverse polarity. This is not the reason. I think it's simply a har...

I had a closer look to the different PI Zero W's and figured that they were a bit different. They definitely came out of different PCB productions because the colour of soldermask is a bit different. There is also a different way of printing the production week on it. The working is from week 44/16,...

My new PI Zero W arrived and bluetooth works

Crazy... it's the same SD card, all same... now it's sure that my PI got a hardware bug.

Thank you for your fast support!

Fresh Raspbian Lite install:

@mikerr
Did you test it with Rpi 3 or Zero W?

Thank you guys for these replys.

You can find my output of hciconfig -a attached to this post.

As you can see serial0 goes to ttyS0 and serial 1 to ttyAMA0. This should be ok.
I just ordered a new PI Zero W and will check it out with the new one soon.

I tried both, Jessie with Pixel Desktop and Lite.

My actual configuration is Jessie Pixel Desktop, but booted into CLI.

Today I started using I2C and Uart via ttyS0, both worked fine. It's seriously just this stupid bluetooth what keeps my project stuck

Hmm nobody any idea? Are there no Zero W users out there who wants to use bluetooth?

Another point... when I power up the raspberry I get the following error: [FAILED] Failed to start Configure Blutooth modems connected by UART Does this have something to do with my problem? I already activated "serial" in raspi-config. This is UART, right? When I enter systemctl status hciuart.serv...

Good evening! I got a brand new raspberry pi zero w and installed the latest version of raspbian jessie on it. Unfortunately I don't get bluetooth to work. It always tells me "no adapter found" Wifi works with no problems. bluetoothctl also does not find any bluetooth adapters. Is there a special tr...