The problem steps：
The mobile phone system is IOS13.4.1 or above.
In normal mode, bluetooth peripherals are paired with mobile phones to communicate
Send DFU instructions in normal mode
The Bluetooth device enters DFU mode and the Bluetooth is disconnected
The connection failure will be prompted if the bluetooth peripheral is connected to the DFU mode of the mobile phone: Peer removed pairing information
That's the problem at the moment. This situation can cause the device to be in DFU state and cannot be upgraded
Zeke2019
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
User for
Post
Replies
Boosts
Views
Activity
I have the same problem. Is there a solution?