This article provides a deep dive into using to remove FRP from the Poco C40 , covering compatibility, setup, safety precautions, and a step-by-step walkthrough. What is DFT Pro? (And Why It Works on Poco C40) DFT Pro (Devices Factory Tool Pro) is a professional-grade software/hardware combination tool designed for servicing Android devices. Unlike generic APK files, DFT Pro operates at the bootloader and preloader level.

| Error Code | Meaning | Solution | | :--- | :--- | :--- | | | Drivers not installed or phone not in BROM mode. | Reinstall JLQ drivers. Hold volume keys for exactly 3 seconds before plugging in. | | Error: Sending DA failed (0x13) | Security mismatch. | Close DFT Pro. Reboot PC. Put phone again into preloader. Use "Force BROM" option. | | Device detected as "JLQ USB" but not connecting | USB port voltage issue. | Do not use USB 3.0 ports (Blue). Switch to a USB 2.0 port directly on motherboard. | | FRP removed but lock returns after reboot | Cache partition not cleared. | After DFU reset, manually wipe cache from recovery (Power + Volume Up) before first boot. | DFT Pro vs. Alternatives (EftSU, UnlockTool, MCT) You might wonder why spending $100+ on DFT Pro is necessary. Let’s compare:

Without that original Gmail password, the phone becomes a $150 brick.