How To Lock Write Permissions On Nfc Tags? Any Tools Out There?

I just finished building my android app that reads NFC tags. I've been writing the tags using the Nfc-Eclipse-Plugin. The plugin works great, but there is no way to lock the tag on

Solution 1:

I have updated the NFC Developer app of the NFC Eclipes plugin to include a 'burn mode' - it can be enabled from the options menu once an NDEF payload has been loaded. Please give it (version 1.3) a try!

Solution 2:

You could try TagWriter. Switch to "Pro" mode in the preferences (option "Switch UI mode"), then you will get an additional menu option "Tools" that contains functions such as marking the NDEF message on a tag as read-only and locking a tag.

It depends on the kind of tag whether it can be locked or not. Beware that, depending on the kind of tag, marking the NDEF message as read-only sometimes cannot be undone (this is the case with a NFC Forum Type 2 Tag, such as MIFARE Ultralight). Locking a tag can usually not be undone either (for example Type 2 Tag or ICODE tag).