Many iPhone customers reported the problem, that iPhone 8 or X owners are unable to get connected or work properly with CarPlay. Many iPhone X users are facing issue with Bluetooth. Some iPhone X users are complaining that they are not able to connect to Apple watch while some complains that they are not able to connect to bose speaker. The issue gets more severe when users are not able to connect to their cars like BMW, Mercedes, porshe etc. When try to connect iPhone x, it states connected but user hear nothing. The device wont pair or recognize iphone x. Even in some cases when the devices connects, the Bluetooth connection drops and reconnects again. Some times iDrive kept rebooting with eventually resetting it.
In cars over the course of a short drive iPhone X will disconnect the Bluetooth and then reconnect periodically. The older iPhone 7Plus reported to worked perfectly in the same vehicle/devices but can come down to the devices that an individual is using and can sometimes be solved by other methods.
What is causing iPhone X Bluetooth issues:
There are general problems with WiFi, Bluetooth, cell radios, etc. because of so many differing versions that are out there, companies that do not correctly follow BT protocols, etc. Often these are not global software issues.
Until Apple or car maker releases any permanent fix, you may try below steps for fixing iPhone X Bluetooth issue:
-> Fix 1: Change Name of your iPhone X:
If you iPhone X has the same name as the 7, try changing it, it sounds weired but works sometimes.
-> Fix 2: Repair devices
Try to delete all connections both on the cars head unit and the phone. Delete all previous pairings of iPhones from your car Bluetooth paired device list and repair them. Now check with iPhone x and it should sync well.
-> Fix 3 : Reset Headphones to factory settings
For the problem of connection with the headphone, initializing the headset to restore factory settings might help, hold your Bluetooth power button for 10secounds it will reset the Bluetooth headphones
->Fix 4: Upgrade iOS
Keep upgrading iOS versions as Apple might be already aware to such issues and fixing them in new software releases. Many users confirms that iOS 11.2 has fixed many such BT issues.