Koason Android 10.25 inch HD1920 Screen Display Monitor 4G LTE Multimedia Player GPS Navigation for BMW F20F21F23F30 F31F32F33F34F36F80F82F83F84 NBT, Black

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.

There is a lot here for the money. The system works great. It's very easy to install, wiring can be a little tight to route but not bad. You have a choice of several different user interfaces to use for what ever look you like. Its fast and the video is bright and crisp. Once you get used to switching between the OEM interface and Android its very simple to use. The only issue I had was adding it to my cellular service. T-mobile is the only service that recognized the IMEi number. Not a huge deal, I just added in-car wifi for less than what a SIM card would have cost. All in all I would definitely recommend this.

*Installed on 2014 F30 320i Before you buy verify the pin connector you have on current screen. This unit uses the 6 pin connector (4 pins in the main portion and 2 on the outside of the circle). If you have that connector your car is compatible even if you have the older looking CIC menu. Pros 1. Good screen resolution 2. Android auto and carplay wirelessly accessible. 3. Its an android device so you have alot things to customize and work with for applications. 4. The NBT menu UI is easily the best choice 5. Its 4G capable with expandable memory, which could eliminate use of your phone. CONS. 1. The native BT audio in unit had slight crackle. But no issue with android auto or third party apps. 2. UI can feel clunky and somewhat finnicky. TLDR get this thing if your F30 doesnt have BT audio or bigger screen. Easily changes the whole dynamic of the car.

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.