How is this thread different from your earlier thread?

Here's the issue. You've yet to state what exactly have you done to get to this point. I know you want to downgrade for some reason in some other thread; however answer the following questions...

What device do you currently have?
What firmware have you flashed on the device?
What have you done since flashing a firmware on your device?
Have you tried to backtrack and go back to your original firmware?
What is your goal?

Let's start there. And let's actually spell out what you've done to get yourself into this position and how we can assist you to where your prior attempts are no longer creating issues.