@SimonK and Lazy Zero
In github :
There is currently no way to reset (remove) the calibration other than by clearing the EEPROM (or reflashing without EESAVE set).
In tgy.asm :
If the boot loader is enabled, the last nibble of the hfuse should be set to 'a' or '2' to also enable EESAVE - save EEPROM on chip erase
When using KKMulticopterFlashTool, the last nibble of the hfuse is set to 'a' when bootloader is enable. Is there a way to clear EEPROM, to use default values of the firmware, when flashing with PWM (USB Linker) ?
Is it possible to upload a code to clear the EEPROM and then upload ESC firmware ?