[m27amed]

my phone nokia 8.1 model TA-1119
MY PHONE NOW FASTBOOT NOT CLOSE THE MODE AFTER OFF OR PRESS V+ O R V- HOW INSTALL FLASH BOOTLOADER UNLOCK AND SLOT A ACTIVE BUT SLOT B IS ROOTED HOW TO REPAIR MY PHONE I WANT FLASH

[m27amed]

online service tool get error

[X3non]

my phone nokia 8.1 model TA-1119
MY PHONE NOW FASTBOOT NOT CLOSE THE MODE AFTER OFF OR PRESS V+ O R V- HOW INSTALL FLASH BOOTLOADER UNLOCK AND SLOT A ACTIVE BUT SLOT B IS ROOTED HOW TO REPAIR MY PHONE I WANT FLASH

don't understand most parts of your post, maybe you could try explaining properly
but for exiting fastboot mode, you should try holding power button for approx. 15 seconds