2.0 Downgrade failed!

My downgrade failed!And sometimes when I try to downgrade my psp doesnt turn off!And I have to hold the power button down for a long time!Can someone help me?I try to downgrade but I still have my 2.0 update eboot file in my memory stick!Plz somoene help me update!Could someone go on the chat room on the website?I need live help!

EDIT:

My version is 1.52 btw now.I dont no how it got to it but something has happened.Please could someone help me update and downgrade on live chat?I think I may have done somehting wrong.

I dont really understand your problem here. It works everytime for me.

http://playstation.hackaday.com/entry/1234000687060851/

The link should clear up any problems. Other than that I dont know what your doing wrong.

Do you have other photos in your photo section other than overflow.tif?

yea.think that might be it?

lol you HAVE TO UPGRADE TO 2,0 FIRST

what that person said above!

i was on 1.52 and upgraded to 2.0 - it only works on version 2.0