I created a demo to test core NFC and failed to write the iso15693 tag. Byte bytes[8]={0x12,0x21,0x04,0x74,0x65,0x73,0x74,0x00};	 NSData *data = [[NSData alloc] initWithBytes:bytes length:8]; [iso15693Tag writeSingleBlockWithRequestFlags:RequestFlagSelect blockNumber:0x04 dataBlock:data completionHandler:^(NSError * _Nullable error) { 	 if (error) {	 		 NSLog(@"Failed to write tag!"); 		} else { 		 NSLog(@"write succeeded!"); 		 } 	 }]; I couldn't execute successfully and got the error message： Error Domain=NFCError Code=100 "Tag connection lost" UserInfo={NSLocalizedDescription=Tag connection lost} I would like to ask if core NFC supports writing iso15693tag？ I think I need a successful example of how to create a correct blockdata. I hope someone can help me. Thank you very much！