: In SP Flash Tool, ensure the Connection setting is set to UART (not USB) and match the COM port assigned to the bypassed device.
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Disables the bootrom protection, allowing you to use tools like SP Flash Tool without an official "Auth" file. : In SP Flash Tool, ensure the Connection
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| Error Code | Meaning | Solution | | :--- | :--- | :--- | | STATUS_EXT_RAM_EXCEPTION | The bypass payload crashed the preloader. | Disconnect battery, reconnect. Use a different USB cable. Try USB 2.0 hub. | | S_BROM_CMD_STARTCMD_FAIL | Bypass didn’t hold; DA wasn’t accepted. | Run the bypass tool again while keeping phone connected. | | S_SECURITY_SECURE_USB_DL_NOT_SUPPORT | The phone’s brom is too new for Rev 1. | Your device is not supported (likely Dimensity or Android 13+). | | BROM Error: Bad response (Tool console) | Wrong COM port or driver conflict. | Uninstall all legacy MTK drivers. Use usbdk or libusb via Zadig. | | Phone disconnects after 5 seconds | Preloader times out to normal boot. | You must run the bypass immediately (under 2 seconds) after connecting. Use manual timing. | Keep this window open