This article will explain how to fix an iPhone 12 Bluetooth problem that causes it to disconnect and then reconnect randomly. This seems to be an ongoing, persistent pairing problem. Bluetooth might also be affected by this issue. Your Bluetooth accessory (AirPods or car stereo, keyboards, printers, Apple Watch, etc.) will not work as expected. This can also cause intermittent Bluetooth connectivity issues between your accessory and your iPhone. This is how to fix this issue on your iPhone 12
iPhone 12 Bluetooth disconnects issue
Make sure your accessory fits within the range
This is the first thing to do if your iPhone 12 bluetooth disconnects. Make sure your iPhone is within range of the Bluetooth accessory you want to pair with it. Try bringing the devices closer together if they are not. Your iPhone and accessory must be at least 30 feet from each other to ensure they communicate well. To see if your iPhone’s case has changed, take it off. Finally, turn off any other electronic devices that might interfere with your iPhone to check if it changes. Because some electronic devices can interfere with Bluetooth connections, this is important.
Turn on Bluetooth
Make sure Bluetooth is enabled in Settings > Bluetooth. Make sure your Bluetooth accessory is on and in pairing mode. If you need assistance, your Bluetooth accessory documentation may be helpful. Make sure that Airplane Mode has not been enabled. Sometimes, Bluetooth may not work properly.
Restart your iPhone with your accessory
Start your iPhone again and then attach your accessory.
Repair and unpair
Go to Settings > Bluetooth on your iPhone. Find the device you are experiencing this issue with, or the device you are trying connect to, then tap the info icon. Finally, tap Forget This Device. Tap Forget Device. You may see a popup saying “Remove [accessory] From This Device will Remove it from All the Devices on Your iCloud Account”; then, tap Forget Device Again. Pair them again after you have forgotten your accessory.
Verify your Bluetooth permission
Is there an app for your accessory? Bluetooth may be required by some apps. Make sure they are enabled. This can be checked by going to Settings > Privacy > Bluetooth. Next, locate the app and make sure it is enabled. Also, make sure that Use Cellular Data has been turned on for the Bluetooth app. This can be checked by going to Settings, then tapping Cellular or Mobile Data.
Make sure your iPhone 12 is up-to-date with all accessories
This issue may also be addressed by updates. Your Bluetooth issue may be fixed by updating your iPhone to the most recent software version. Go to Settings > General > Software update to check for any updates. Follow the steps to determine if an update is available. You can also update accessory software if it is upgradeable.
Reset Network Settings
Reset your iPhone’s network settings. Resetting your network settings will erase all network-related settings such as Wi-Fi passwords and Wi-Fi passwords. Follow the instructions on screen by going to Settings > General >Reset > Reset network settings
Reset your accessory
Resetting an accessory that is not resettable may be possible. If you have an issue with your AirPods, for example, you may be able to reset them. You can contact the accessory manufacturer again or refer to its documentation.
Contact Apple if your iPhone 12 Bluetooth is still not working after following the steps. It may be worth booking a Genius Bar appointment. If your accessory manufacturer is not Apple, you may want to reach out.