Some times some Memory cards can be protected with some password might be mistakenly forgotten and unlocking password protected memory card is never easy but with the help of some research i made i have found a solution on how to unlock a memory card password with your Computer (PC).
EASIEST WAY TO UNLOCK A MEMORY CARD PASSWORD WITH YOUR PC
Insert memory card into ur phone but dnt access it yet
Run File Explorer on ur phone nd open the path C: system.
You wil find a file called mmcstore, rename d file to
mmcstore.txt
Copy that file (mmcstore.txt) to ur pc nd open d file in
notepad
You wil find ur paswrd in dat file maybe towards the end of its
Now use that paswrd u saw on the notepad to unlock ur
microSD on ur phone.