# Help & Info | MTools ## 1.Overview MTools is a Material Design APP to easily read, write, analyze and charge `Mifare Classic` Tag. What you need firstly: 1. `Mifare 1K`Supported Device. * Inner NFC * USB: `ACR122U` `PN532` * Bluetooth: `PN532` 2. KeyA and keyB of the sector. **Please comply with local laws, only used for study and testing.** ## 2.YouTube Chanel {% tabs %} {% tab title="Magic Card" %} {% embed url="" %} What's Magic Card and How to Clone {% endembed %} {% endtab %} {% tab title="Mi Band" %} {% embed url="" %} MTools read/write/clone data on Mi Band 3 NFC {% endembed %} {% endtab %} {% tab title="PN532" %} {% embed url="" %} All-in-one PN532 | USB & BLE {% endembed %} {% endtab %} {% tab title="ACR122U" %} {% embed url="" %} Read card with ACR122U on Android phone {% endembed %} {% endtab %} {% endtabs %} ## 3. Lists When the tag card on the list page, the tag info dialog will pop up. It will show status and suggestions depending on your card type. ![MTools Tag Info Dialog](https://3395533350-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LD97pa04tZLvlPyG5f6%2F-MeFbxSPfjqbURVJv4CD%2F-MeFfaE3M6ae-hDPe7mQ%2FMTools-Tag-Info-Dialog.png?alt=media\&token=b636423a-38dd-47e3-902c-836ca170aa14) ### 3.1 Add Card Click the **+ floating button** will display `Add Card Dialog`, put the Mifare Classic Card close to the NFC antenna, then you can add a card to the APP. ### 3.2 Remove Card Slide the item toward the right to remove the card. ### 3.3 Sort Card Press and drag to sort cards. ### 3.4 Filter Card Drag down the list to filter cards by name, UID, SAK, or DateTime. ### 3.5 Import File * \*.mto file is the specific JSON file that includes tag information, keys, and rules. * \*.mfd | \*.bin file is the Mifare dump file read by libnfc library. * \*.mct file is the dump file read by Mifare Classic Tool. ### 3.6 Export File Supports exporting to 5 types: * `*.mto` Includes card sectors, dumps, and rules. * `card-list.csv` Includes card, id, name, SAK, and DateTime. * `keys.txt` Includes all keys added. * `sniffer.csv` Includes all sniffer records. * `record.csv` Includes all charging records. ## 4. Details ![](https://3395533350-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LD97pa04tZLvlPyG5f6%2F-Mb2DALCot-JEfRfFzgw%2F-Mb2DWyQKcYyzP0PCBHI%2Fbutton_func.jpeg?alt=media\&token=0042f90f-0b3d-4f81-a0ee-36f4860c4e6e) ### 4.1 Add & Remove Sector :new:Click the **+** floating butto**n** and choose `Add 1 Sector`, select the sector number by sliding the picker, and enter 6 bytes (12 characters) valid key A or key B, click `Complete` to save. :arrow\_backward:Slide the item toward the right to remove the sector and keys. ### 4.2 Modify Key Click the **modify button** will display the `Modify Key Dialog`, select new sector number by sliding the picker, and modify the 6 bytes (12 digits or letters) valid key A or key B, click `Complete`save new keys or sector. ### 4.3 Read Sector After the card is close to the NFC antenna, click on the **read button** will read 4 blocks of data from the clicked sector, you can modify and write the new data. ### 4.4 Manage Rule ![](https://3395533350-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LD97pa04tZLvlPyG5f6%2F-Mb6Y_w4X-HiE9LY0Djm%2F-Mb6cAYKHeOMMPTJ9wUw%2Fmt%20handle%20block.jpg?alt=media\&token=1ebdb17c-ad14-4294-8f51-d3377f81c759) * Check on the checkbox for the block to handle. * Click on **MARK** to mark selected blocks. * Click on **COPY TO** to copy the rule to another card. #### **4.4.1 Mark Money Byte** ![](https://3395533350-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LD97pa04tZLvlPyG5f6%2F-Mb6Y_w4X-HiE9LY0Djm%2F-Mb6dBobEv68KsF3qfQB%2Fmark_money.jpeg?alt=media\&token=c8c2a671-3eb9-4029-95c4-b7701179d9c1) Mark the byte, then verify the money is correct, and click Next. #### **4.4.2 Mark Checked Byte** ![](https://3395533350-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LD97pa04tZLvlPyG5f6%2F-Mb6Y_w4X-HiE9LY0Djm%2F-Mb6dG-lcMqK6kJa8mru%2Fmark_check.jpeg?alt=media\&token=883d45a6-a09f-4f8a-8509-2ea87a4d40a5) Check the bytes that change and add expressions. Make sure that it's correct then click OK. #### **4.4.2.1 Supported operations:** > Basic: + - × ÷ > > Advanced : # > > Logical : xor not > > CRC8: crc8, crc8cdma2000, crc8darc, crc8dvbs2, crc8ebu, crc8icode, crc8itu, crc8maxim, crc8rohc, crc8wcdma > > CRC16: crc16ccittfalse, crc16arc, crc16buypass, crc16cdma2000, crc16dds110, crc16dectr, crc16dectx, crc16dnp, crc16en13757, crc16genibus, crc16maxim, crc16mcrf4xx, crc16riello, crc16t10dif, crc16teledisk, crc16tms37157, crc16usb, crca, crc16kermit, crc16modbus, crc16x25, crc16xmodem [Know More >>](https://docs.mtoolstec.com/mtools-app/help-or-add-expression#example) #### **4.4.2.2 Sort Expressions** Press and drag to sort Expressions. The calculation is from top to end. ### 4.5 Data Sniffer ![](https://3395533350-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LD97pa04tZLvlPyG5f6%2F-Mb6ewXofBHU-wvHIDDn%2F-Mb6fYg-EEcTZASVu1cJ%2F%20tips_sniffer.jpg?alt=media\&token=ea2c3f7a-14da-4f60-afd2-ac60c5aaf3f5) Must add correct keys before. After marked, it can be compared with highlight data.\ Data Backups/Restore, Compare vertically, Rule Repository. ### 4.6 Sort Sector Press and drag to sort sector. ### 4.8 Import Dump Click the **+** floating button, `Add Dump File` choose dump type then select file. The dump file type MTools support: {% tabs %} {% tab title="mfd" %} Mifare Dump is a 1K size file that is read by PN532 with the libnfc tools. {% endtab %} {% tab title="bin" %} 1K size file that is read from Mifare 1K card by Proxmark 3 devices. {% endtab %} {% tab title="mct" %} Text type dump file from`Mifare Classic Tools` app. {% endtab %} {% endtabs %} ## 5. Read From Card Click the **+** floating button and choose `Read From Card`, you can add more keys and try to read as much data as possible from the card, and then save it to a dump file. ### 5.1 Key List Start with default keys and customed keys added by users ### 5.2 Start To Read Try to read as much as possible data with all keys in Key List. ## 6. Charge ### 6.1 Set Quotas Click **+** button to change to **=** as Quotas. ### 6.2 Clear Record Long press **the recharge record list**, then pop up the dialog will allow you to clear the recharge record or not. ### 6.3 Show Calculate Result Long press the floating button to preview the data generated on **Rule**. ## 7.Dependency Thanks to the friends for the contribution to the open-source community, regardless of rank. * `ikarus23` [MifareClassicTool](https://github.com/ikarus23/MifareClassicTool) * `afollestad` [material-dialogs](https://github.com/afollestad/material-dialogs) * `markormesher` [android-fab](https://github.com/markormesher/android-fab) * `didikee` [AndroidDonate](https://github.com/didikee/AndroidDonate) * `Ice-Box` [Ice-Box](http://catchingnow.com) * `uccmawei` [FingerprintIdentify](https://github.com/uccmawei/FingerprintIdentify)