Quick tutorial: How to set a read/write access password in the MIFARE Ultralight ® EV1.
Please read this:
https://eccel.co.uk/wp-content/downloads/Set-a-password-in-the-Ultralight-EV1-80B.pdf
Protect your data with 4 -bytes read/write password. Use our B1-Client and set the configuration.
The B1-Client along with its user guide you can find here: https://eccel.co.uk/support/downloads/#13-56mhz-products
