Warning !!!

Before flashing Android 10 firmware ( version ANT-2xx ) - check IDENTIFY !!!

if phone have firmware version ANT-2xxx - you can safely flash Android 10 firmware.

if phone have firmware version 0xxx - 
you MUST flash ANT-2040-0-00WW-B99.nbx BEFORE flashing Android 10 firmware.
Otherwise, you will end with bricked phone and should use bootfix_ANT.zip.

Take note, that you CAN NOT downgrade to ANT-0xxx firmware,
once you installed ANT-2xxx firware, you will lose network.

Notice !!!

if phone have Android 10 ( ANT-2xxx ), Android 11 ( ANT-3xxx ) firmware
then you can not use SERVICE function directly due to FIH programmers bug.

Instead, you must flash special firmware ANT-214F-0UWW-B01.NBx and then
you can use SERVICE function.

After using SERVICE functions you can use any firmware you want.