Nfc card. How to remove protection

[Pilgrimsmaster]

@kostya629

Gonna write data about me in it

Are you wanting to still be able to use it at the hotel also?

MF1k are great cards, but not the best to use for NDEF.

What size is the data you want to store?
There maybe better options at a very cheap price.
An NTAG card is a cheap and simple choice, but if you need more storage, you could look at DESFie catds

Also do you require it to be offline?

You could look at justvproviding a link.

Something like this

Wiki: Contact Sharing NFC Business cards

As the creator of one such site dropped into an old thread today, and some sites seem to be no more I thought it might be useful to list some of the sites we know about. There is nothing to say that you can’t just save the information anywhere and provide a URL in NDEF on your chip. In fact most of these look like that is what they do. I have no experience of any of these, but these are the ones that I could find that are currently active. This has been arranged in alphabetical order of doma…