How to read write clone mifare classic 1K card with ACR122U APP MTools on android phone by OTG

0:00 Connect ACR122U with OTG Cable 0:08 Add card to MTools app. 0:20 Read sector with ACR122U 0:30 Sniff card data with ACR122U This is the latest feature of NFC MTools, which is easy to read, write, compare, charge Mifare classic 1K card with a phone built NFC hardware or external NFC device like ACR122U.