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

The screen has arrived and we have had the best service from the seller, they solved three issues we had perfectly and dealt with it very well. The screen system fits the interior of the car really well and the system is very fast and auto connects to your phone CarPlay as you are turning the car on. It let’s you flip between the BMW system and then back to the android system easily.

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.

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

Works great even thought my car was not equipped with the NBT system. All features still work and can easily code vehicle to stream bluetooth music, but the unit already has built in bluetooth so i didnt see the point to code. Resolution is great and easily installed in about 30min.