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Dear Everyone! I am using RxBluetooth Kit library to connect bluetooth to peripheral devices. But now, when I read data from 1 characteristics, in call back I did not read another characteristics. My code is as follows: viewDidAppearSubject .take (1) .flatMap {self.bluetoothProvider.getValueUpdates (for: charator2102)} .subscribe ( onNext: { if $ 0 == "2103" { self.read2103 () } print ($ 0) }, onError: {_ in self.showError ()} ) .disposed (by: disposeBag) When I receive data of charator2102, I cannot read more data of charactor2103 anymore. Hope everyone help me! Thanks very much!