please supply your tool version, GUI screen shot, and tool logs when you encounter trouble with the latest tool.
How to obtain the tool logs?
1.Run the tool;
2.Press Ctrl+Alt+t(Tool Title Hint:Runtime Trace Mode);
3.[Menu]Help-[SubMenu]Open logs folder.
SP FLASH TOOL ERROR: (8303)
[Android Firmware Upgrade] Backup file will be overlapped!
[HINT]:
The Backup nvram file exists already!Please move existing data of this folder to another place,then delete this folder before executing backup!