: Install the necessary Spreadtrum (SPD) USB Drivers on your PC and ensure your phone battery is at least 60%.
Open the UpgradeDownload.exe or ResearchDownload.exe from the tool folder.
While holding the key, connect the phone to your computer using a high-quality Micro-USB cable. nokia ta1304 flash file pac file
Bypassing a forgotten security code (default is 12345 ).
Ensure Spreadtrum USB Drivers are installed to allow the PC to recognize the phone. : Install the necessary Spreadtrum (SPD) USB Drivers
Press and hold the (usually the Center key or Volume Down key).
Failed to Start: if the tool doesn't recognize your device, check your cable and ensure the SPD drivers are correctly installed in the Device Manager. Bypassing a forgotten security code (default is 12345 )
flashing wrong/incompatible PAC can permanently brick the device, void warranty, or cause IMEI/baseband loss. User data will usually be erased. Bootloader/CSC mismatches can break carrier features (VoLTE, bands).
: The specific PAC firmware file for your region.