Maybe you don't know. IOS 8.1.2 improves Bluetooth performance

"The TechWeb report" looked at Apple's earlier iOS8.1.2 update log, and perhaps we only focused on the message of recovering an unknown lost itunes ringtone. But some of the changes we're not aware of in iOS8.1.2 's update are not appearing in this update log, such as this one, which improves Bluetooth performance. In this case, the foreign media Forbes In a recent article, Markrogowsky said: I don't know if iOS8.1.2 includes Bluetooth-related software upgrades, or if the new system has reset some of the iphone's system parameters, but I'm sure that some of my phone's experiences after upgrading to iOS8.1.2 Words are obvious. Before I upgraded to iOS8.1.2, my iPhone6 often had Bluetooth problems, and sometimes even no signal Bluetooth at all. It is worth mentioning that the iOS8.1.2 system can still use the tools made by the Tai Chi jailbreak group to escape, and Apple's iOS8.2 is currently being tested, as to what specific improvements will not be announced until after the official release.