| Tool | Best For | Difficulty | Speed | UNISOC T-series | Price | |------|----------|------------|-------|----------------|-------| | | Free, dedicated SPD/UNISOC repairs | Easy | Fast | ✅ Yes | Free | | Maui META 3G/4G | Generic MediaTek & SPD | Moderate | Medium | Limited | Free | | SN Writer (SPD) | Factory IMEI writing | Hard | Slow | No | Free | | Chinese Miracle Box (CM2) | Professional, all brands | Hard | Very fast | ✅ Yes | Paid ($100+) | | WriteIMEI Tool | Simple UI, older SPD | Easy | Fast | ❌ No | Free |
: Users input the correct IMEI into the tool's interface, select the corresponding COM port, and execute the write command. A "Pass" message indicates a successful update. Important Considerations spreadtrum imei tool v41 updated