Hi,I have tried to write some characters like device name for BLE device. Suddenly my device thrown error: MISUSE and device got disconnected.

[Vijyendra]

Hi,I have tried to write some characters like device name for BLE device. When I called

Code:

  grantPermissionCharacter?.service.peripheral.writeValue(data1, for: grantPermissionCharacter!, type: CBCharacteristicWriteType.withResponse)

Suddenly my device thrown error: MISUSE and device got disconnected. After data LED lights on device not working and device not getting connect with iOS device. any help appreciated.

[Hung Bui]

Could you clarify what exactly MISUSE error code is ? It's on the phone or on the device ? What kind of program you have on the device ? Can you test using our SDK's example ?

[Vijyendra]

Already tried with NRFconnect application and BLE device not getting connect with iphone. ble device's LED light also not blinking , battery is working fine with other device. I am not able to rectify issue.

MISUSE_ error shown hen I tried multiple character in a row , i think i have written wrong data character. is that might be an reason?

below is the code...after executing this That error come up...

let data = self.dataWithHexString(hex: hexDateToWrite)// 5976C3A3
        dateCharacterToUpdate?.service.peripheral.writeValue(data, for: dateCharacterToUpdate!, type: CBCharacteristicWriteType.withResponse)
        
        let data2 = "SOMETHING".data(using: .utf8)!
       self.random1 = data2.hexDescription.uppercased()

       let data1 = self.dataWithHexString(hex: self.random1)// 5976C3A3
        deviceNameCharacterToUpdate?.service.peripheral.writeValue(data1, for: deviceNameCharacterToUpdate!, type: CBCharacteristicWriteType.withResponse)

        grantPermissionCharacter?.service.peripheral.writeValue(data1, for: grantPermissionCharacter!, type: CBCharacteristicWriteType.withResponse)

[Hung Bui]

Please try to erase bonding on both the phone and the device before you test with nRFConnect. Please try to use our SDK's example code to test first.