It worked! So many recovery key files saved on my computer. And I did find one that can unlock my external hard disk.
With the help of Cocosenor BitKeyTuner Mask method, I got the password back. Thanks you guys!
The software is exactly what I want! I search online and find there is no way to access the BitLocker drive without recovery key and password. But your tool enables me to find the recovery key from my computer and unlock it! Really appreciate your help!
I downloaded the software and purchased the full version. But it took a long time to recover my BitLocker password as I forgot everything about it! Hope you can speed up Brute Force process.