Koason Android 10.25" Screen Display Monitor GPS Navigation Audio Video Media Stereo Player for BMW 3/4 Series 2017-2019 EVO

Great upgrade. Install took me about an hour, very easy...Operating, setup instructions are limited but if you have used Android on a phone or tablet in the past it can make it easier.

Had some issues at first with connecting to carplay and receiving calls, but contacted them and they showed me how to fix all the issues. Also got a backup camera and it works flawlessly with this screen!

The media could not be loaded.  Installation was straightforward using YouTube video as a guide, difficulty level is 3-4/10. You need torc bits T20 to remove the factory head unit and install the product. I have the optical cable which are two wires that you need to remove from the factory harness and plug into the back of the product harness, make sure to mark the orientation and place the cable in the same orientation. Once you have connected the power, audio and auxiliary cord and USB plugs placing the unit back in the car will be tight, if you carefully arrange the wires, it should fit with a little bit of elbow grease. Before you put everything back turn the car on to make sure all the functions work. I have had it for 7 days now but intermittently I get a blue screen and no sound and a white " no signal". This seems to happen most when the unit is hot, I live in Guam so it's always hot, I am trying to park in a shaded area with a windshield cover to see if this problem goes away. When the blue screen comes on and no signal, the unit will try to restart but ultimately it will remain non functional despite restarting the car. If the car has been off for more than 30 min (approximate) sometimes it will start and other times it will have the no signal. The unit tends to work almost consistently at night. If the unit is able to remain functional further day, I will keep it as it is a significant upgrade from the stock factory unit. If the no signal keeps happening I will had to return it.The no signal/blue screen keeps occurring and seems to happen more when the unit is hot. If the car has been sitting in the sun with a sun screen visor, the unit will not start at all and goes straight to a no signal message. I will reach out to koason to see if there is a solution.

Wow, impressive and flawless product i was afraid to but a crapping things but the reality is this product is incredible. Wireless car play work with your wifi flawless. Have carplay, android tablet and original system in one unit. The only bad thing it does not come with manual but customer support is great

I absolutely love this upgrade on my 2014 F30. Was very easy to install. It seems that BMW already had the reverse hooked up for the backup camera as well which made that plug and play as well.What I did to find that out was : run wire to the front without hooking camera up as of yet. Install android 10, connect av cable and power for camera, reinstall everything. Startup and if you see backup grids with no connection your good to go just connecting camera at rear of car.If you are looking for a upgrade to your display get this Android 10. Night and day difference