Password stopped working

hi i have a my passport 300gb external hardrive and the password has stopped working. no the password isnt wrong i cant update the firmware because i cant enter the password. when i  enter my correct password it says its incorrect even though it is correct i need help because i cant format that drive because of the important files on it along with the only pics i have of my great grand mother. need help

no way around the password thingy

if no password no data

I would love to try DDI 4 with usb plugin on this issue. pm me if you’d like to give it a try