No Errors will Not Read or Right

[247comfort]

Hi, The library connects fine no issues. But it will not read or write. When i read i get "0"

var t = NFC.ReadBlock("0");

i am using the ACR122

Thank You Gary

[h4kbas]

Please state your OS version and similar specs to clarify the issue. Also, did you try to start your app in administrator mode?

[Acpek23]

Hey man this library is great, but I'm having issues reading the blocks this I'm getting a byte like this: byte[2] [0]99 [1]0 my conversion from byte to sting is: "c\0" My os is windows 10, I'm forcing the application to run as admin and this is the NFC model acr1255u-j1 any suggestios why I'm getting only that? this is my code: public void read_sector(string sector) {

        NFCReader NFC = new NFCReader();
        try
        {
            if (NFC.Connect())
            {
                //Autorizamos el sector
              Boolean autorizacion =  NFC.AuthBlock(sector); //returns boolean

                //Leemos el sector
                byte[] resultadodelsector = NFC.ReadBlock(sector);
                            
               
                string result2 = BytesToStringConverted(resultadodelsector);
                //string resultadodelsector = Encoding.UTF8.GetString(NFC.ReadBlock(sector));
                 Console.WriteLine(result2);
            }
            else {

                MessageBox.Show("Falle al realizar la conexion");
            }
        }
        catch (Exception e)
        {

            MessageBox.Show("Falle al leer el sector 2: "+ e.Message.ToString());
        }


    }

[h4kbas]

99 00 means OK in NFC language

[Acpek23]

thanks for the response but I'm still not getting any text from the block I checked the manual documentation: https://www.manualslib.com/manual/1436214/Acs-Acr1255u-J1.html?page=55#manual 6.5.3 and I try to adjust the code to this specifications changing the CLA, INS,P1 and LE Debugging the application the authorization looks good I get a 90h 00h response that looks on this documentation that is okay https://www.manualslib.com/manual/1436214/Acs-Acr1255u-J1.html?page=58#manual but when I try to read I get the 63h 00h code that looks meaning the operation is failed. I get that info from SendAPDUandDisplay method. Any suggestion?