| Feature | Lenovo U1 Tool | Lenovo Smart Assistant (LMSA) | QPST (Qualcomm Tool) | |----------------|----------------|-------------------------------|------------------------| | | ✅ Yes | ❌ No | ❌ No | | Bootloader Unlock | ✅ Yes (unofficial) | ❌ No (requires official code) | ❌ No | | IMEI Repair | ✅ Yes | ❌ No | ✅ Yes (complex) | | Official Warranty Safe | ❌ Voids | ✅ Yes | ❌ Voids | | Ease of Use | Medium (GUI) | Very Easy | Hard (Command line) | | Brick Recovery | High success | Low (only for soft bricks) | High (but risky) |
After installation, run the executable. The interface is in (toggle available). You should see a window split into: lenovo u1 tool
If a system displays "Invalid" or empty Serial/MTM values, this tool can write the correct information back to the EEPROM. | Feature | Lenovo U1 Tool | Lenovo