Storing a String Array in EEPROM

I have developed a Arduino NFC Door Unlock Kit. Currently I'm storing the NFC UIDs into a SD card connected to a SD Breakout Board. But I want to store them in the EEPROM for reliability and cost effectiveness.

I've tried but failed to save and load from the EEPROM. Could anyone help with this issue.

The code is hosted at: GitHub - fi8er1/Arduino-Android-NFC-Door-Unlocker: Unlock a magnetic door lock with an NFC equipped phone or a card via Arduino controlled relay.

I've tried but failed to save and load from the EEPROM.

Tried what? Failed how?

The code is hosted at

I'm not going there. Post your code HERE. Use Reply, and the Addition Options link below the text entry field to attach YOUR code.

Storing an array of instances of the String class is REALLY not a good idea. Storing multiple strings is possible.