iOS Question BLE - Error changing notification state for characteristic

Mike1970

Well-Known Member
Licensed User
Longtime User
Hi everyone, i'm using BLE, not the first time... but now im getting problems when i try to set the notification flag on a characteristic
I get this error:

Error changing notification state for characteristic: <uuid>, error: Error Domain=CBATTErrorDomain Code=10 "The attribute could not be found." UserInfo={NSLocalizedDescription=The attribute could not be found.}

I don't know how to interpretate this...
i call the setNotify method in the _DataAvailable event, after calling .ReadData(serviceid)

The device has the 2902 descriptor set on the characteristic.. , and also the "NOTIFY" property



EDIT:
I increased the number of handles in the ble-device, and now it can set the notification... but I still do not receive data, I think Is still a ble-device problem at this point

B4X IS NOT INVOLVED IN THE PROBLEM.
but I can't delete the post
 
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