[Android Head-Units] dape16:
I ordered a PX6 4 /64 GB (MTCE_CHS) head unit with 720 p display and Android 9 for my Mercedes-Benz W211. I found a seller at AliExpress with great reviews so I felt safe to order from them.

This will be a short review which I hope can help someone who is looking for info before buying a Android Head unit, but I am also very thankful if someone has ideas how I can solve my problems.

Pros:

- Very sharp display with good viewing angles.

- Reverse cam works great in good lightning conditions.

- Fast startup from standby.

- Useful equalizer which makes it possible to get a great sound experience.

- Custom ROM, root, Tasker and FCC Launcher make it possible to customize the head unit in many ways.

- Very good GPS performance when connected to original powered GPS-antenna in car.

- Apple CarPlay works and looks generally very good, but has problems with sound mixing which makes it useless.

Cons:

- Handsfree sound quality sucks so much it's useless. Sound from the other persons is bad and they can't barely hear me. Tried with external microphone also.

- No auto brightness and max brightness is low in sunny conditions.

- General audio quality, there is constant background noise and interference from wifi, bluetooth and USB devices makes it worse.

- The head unit was supposed to be plug and play but I had to modify my car and use an dremel multi tool to cut the plastic in the car, which makes it difficult to go back to original head unit. This is normal according to seller but no info before buying.

- Android apps does not display well in a car head unit. Even when adjusting dpi it is difficult to find a good setting. Text and objects will be too small or too big, sometimes frustrating and dangerous to control music and navigation apps when driving.

- Android Auto is displayed in low resolution and looks bad, it also has problems with sound mixing which makes it useless.

- FM radio reception is bad, even though I use the original powered antenna in the car.

- General sound mixing problems in different apps.

- I had dust debris inside the display, which is visible with both display off and on.

Problems:

- I have an intermittent problem with a "popping" sound and at the same time the display goes to night mode for a second and reset the clock to 0:00. Tried to disable auto night mode in factory settings but no difference.

- Sometimes when opening a door or turning on the ignition there is a loud high pitch sound from the speakers, very uncomfortable, almost hurts the ears and scares the passengers.

- Sound mixing, when using Android Auto och Apple CarPlay, it will automatically lower music volume when giving navigation directions, but will not increase volume afterwards. So when you manually increase music volume again, next time the voice will be so high it almost destroy your speakers and ears. The navigation voice in Waze Android app gets cut 0,5 - 1,0 seconds to early.

When speaking to the seller they have problems understanding my issues, and just tell me to wait for MCU update (I already have the latest). Seems like they just want to delay so the time when it is possible to open a dispute will end.

What would you recommend me to do? Demand an exchange of my head unit and canbus decoder and hope it will solve the problems? Demand a refund and buy a Sony or Kenwood Android Auto / Apple CarPlay head unit?

Just accept the problems and issues and try to forget that I paid A LOT of money for the head unit and all the accessories? :)