@minisystem: currently, we're new to nfc development, and acquiring certificates at the moment will take a long process and perhaps some arguments internally. Anyway, it's our problem. I understand...

@minisystem: I've changed the variable to the value you provided. I put the modified class file back into the .jar file. Copy the .jar file to the phone. Then tried to run it on the phone. It gave me...

@minisystem: Thanks for the lead. CMIIW: If you change that, you'll need to also re-sign the jar, right? Mind sharing the values you assigned to the constant? Any modifications on the certificate in...

@minisystem: Do you mind sharing the details on how to do so? Which class exactly that you modify? Do you use java decompiler? Thanks...