Can't use the throne firmware upgrade?

resolvent：

1. In this case, the Bluetooth mode changes after the upgrade is successful. You need to cancel the pairing of Bluetooth, turn off Bluetooth, press Ctrl + 1 to switch to Android mode, and turn on the Bluetooth matching device again (Android mode Ctrl + 1, most of the Bluetooth names are called shooting plus V3A, IOS mode Ctrl + 2, most of the Bluetooth names are called shooting plus V3i)