Explorer Kit - Reset Password

[janinaopel]

hi,

I'm working with the NXP Explorer Kit to transfer data via NFC.

When I'm using the demo application and tap the tag on the reader the app is asking for a password (sun, star, moon). None of them is working anymore. Is it possible that I locked it by choosing the wrong password to often?

Is there any possibility to reset the password (combination of buttons on the board, source code,...)?

Kind regards,

Janina

[janinaopel]

Thanks for your answer.

I tried this but I'm not allowed to read/write the configuration register because the app is still asking for the password (SUN,STAR,MOON) and no one is correct. Is there no other possibility to reset the password?

Kind regards,

Janina

[IvanRuiz]

Hello,

As you mentioned, there are only three defined passwords: (SUN = 0xFFFFFFFF, STAR = 0x55555555 and MOON = 0xAAAAAAAA). In the NTAG I2C Demo app, go to the config section -> Read/Write config Registers -> Access configuration in which you can set the AUTHLIM to 0, value which means that limitation is disabled. Unfortunately, if you specified a limit different than 0, if the limit is reached then the protected area will no longer be available.

Best regards,

Ivan.