Only download firmware that matches your exact build number (e.g., X604-H633H-O-180928V246 ) to ensure compatibility. 3. Common Installation Methods
Use this if your phone still turns on and you just want to update the software manually. Download Infinix Note (X604) zip
Open flash_tool.exe and load the found inside your extracted firmware ZIP. Only download firmware that matches your exact build
This is the standard method for unbricking a device that won't turn on. Download and extract the SP Flash Tool on your PC. Download Infinix Note (X604) zip