Description
The Android NFC Card Writing Tool is a lightweight, offline utility app designed to read and write data on classic M1 (S50) cards using just your Android phone’s NFC function. It brings a modern, portable solution to replace old-school PC-based card issuing software, especially useful for maintaining legacy systems like vending machines, access control, or prepaid systems.
Features
1. M1 Card Read/Write:
Supports full read and write access to MIFARE Classic 1K (S50) cards — ideal for recharge, deduct, and initialize card data.
2. Custom Sector & Block Settings:
Users can manually select the sector and block to operate on, providing flexibility for different data structures.
3. Key Management:
Supports input of A/B keys for secure access — only correct keys allow card operations.
4. Offline Mode:
Fully functional without any network or server — perfect for field work or standalone systems.
5. Simple Recharge/Deduct UI:
Straightforward interface lets you top up or deduct values by simply tapping the card on the phone.
Highlights
1. 100% Android-based:
No need for old Windows PCs — everything works on your phone.
2. No Extra Hardware Required:
Uses built-in NFC, no external reader/writer needed.
3. Fully Customizable:
Adjust sectors, blocks, keys, and data content — ideal for developers or advanced users.
4. Legacy System Friendly:
Works well with old systems still using M1 cards — great for maintenance or data migration.
5. Portable & Lightweight:
Small app size and easy to carry — a must-have tool for NFC techs.
Use Cases
1. Legacy System Maintenance:
Perfect for updating cards in older vending or access control machines.
2. System Migration Testing:
Helps read and map old card data structures when migrating to new platforms.
3. Educational Use:
Useful for NFC-related training or student projects.
4. Developer Debugging:
Fast card writing for prototyping or testing NFC-based apps.
Screenshots
