how to lock the lock bytes on NTAG21x ?

[zzzxtreme]

hello, I'm developing android & ios app to read/write NTAG21x. So far I am able to password protect read & write for the data pages.

But for lock bytes, is there a way to disable the static and dynamic lock bytes so that nothing can change it ? I do not want the data pages to ever be locked by anyone.

any help is greatly appreciated !

[danielchen]

Hi

As AN13089 said, at configuration of the product, it is recommended that all block-locking bits are written twice to freeze the configuration of static lock bytes for page 03h and memory area 04h-0fh.   The same for dynamic lock bytes.  at configuration of the product, after configuration memory area, it is recommended that all block-locking bits are written twice to freeze the configuration Dynamic lock bytes.