core bluetooth - iOS app disconnecting from BLE device even with characteristic changes -


i have ios app connect custom ble device.

we sending data device updating characteristic ios app has subscribed to.

it understanding long characteristic updating value should not disconnect.

the device disconnect after minute. same amount of time.

we have android app , not disconnect. run forever long device updating characteristic.

the message see in log simply:

btserver[6940] <error>: disconnected unexpectedly device "558b27af-1aa6-422e-a770-6c3202d2ba8c" error 759 

what cause ios app disconnect in situation? how can diagnose issue?


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