Is this for a specific device (e.g., Sony, Samsung, MTK)?
If you are looking for a guide on how to use the standard (often used for Xperia devices) to flash firmware (FTF files), here is a general guide to help you get started. Preparation Checklist flashtool 0691epubl hot
The term "0691epubl hot" could refer to a specific firmware version or a specialized version of Flashtool. Is this for a specific device (e