Click in the tool, then hold Volume Up + Volume Down while plugging in the USB cable. The tool should report "Protection Disabled" or "Success." Step 3: Flashing via SP Flash Tool
| Error Code | Message | Solution | |------------|---------|----------| | | S_BROM_CMD_START_FAIL | Check USB cable, reinstall VCOM drivers, or use a different USB port (2.0 preferred). | | 0x7D05 | S_BROM_DOWNLOAD_DA_FAIL | Battery too low. Charge phone. Also try shorting test points (TP) to force BROM mode. | | 0x4032 | S_SECURITY_SECURE_USB_DL_DISABLED | Authentication required. Use a DA file that bypasses secure USB (e.g., MTK_AllInOne_DA_v3.3001.bin ). | | 0xC0060005 | S_FTHND_FILE_IS_NOT_LOADED_YET | Scatter file path too long or contains spaces. Move to C:\SPFT\ . | | Green bar stuck at 100% | – | Unplug, restart SPFT, and use “Firmware Upgrade” instead of “Download Only”. | sp flash tool unlock bootloader
For many MTK devices, the "unlock" is not a single button press but the flashing of an already unlocked image. Click in the tool, then hold Volume Up
| Feature | Official Method (Fastboot/OEM Unlock) | SP Flash Tool Method | | :--- | :--- | :--- | | | Easy (Command line) | Hard (Requires Scatter files & Drivers) | | Safety | High (Safety checks built-in) | Low (Easy to wipe IMEI/NVRAM) | | Requirement |Unlock permission from Manufacturer | Correct Scatter file & Unlock binary | | Warranty | Usually voids warranty | Usually voids warranty | | Use Case | Xiaomi, Pixel, OnePlus, Samsung | Infinix, Tecno, Itel, Old Doogee/Ulefone | Charge phone
| Factor | Status | |--------|--------| | Works on all MTK devices? | No – depends on bootloader design and security (SBC, DAA, SLA). | | Requires scatter file | Yes – must match exact device firmware. | | Data wipe | Yes – unlocking triggers factory reset (security feature). | | Warranty void | Typically yes. | | Success rate | High on older MT67xx/MT81xx; mixed on MT68xx/MT69xx with secure boot. |
SP Flash Tool, also known as SmartPhone Flash Tool, is a popular software used to flash, unlock, and repair Android devices. Developed by MediaTek, SP Flash Tool is widely used by Android enthusiasts, developers, and device manufacturers to: