[Q] Flashtool Problem topic

Hello guys, i recently in past change cca 8 times flashed fw, kernel and rom, but yesterday i want to flash so i flashed firmware without problems, but when i wanted fastboot (Search button + USB to phone) led turns blue but flashtool gives me this Device connected in flash mode. So i try reinstall drivers, but still same :(
ERROR - Drivers need to be installed for connected device.
ERROR - You can find them in the drivers folder of Flashtool.
INFO - Device connected in flash mode
ERROR - This action can only be done in fastboot mode
INFO - Device Status: NOT FOUND
ERROR - This action can only be done in fastboot mode. Please help me :(