PLEASE HELP WITH UNIVERSAL UNBRICKER v3

[Breecem]

i put pandoras battery in my psp and it turned on and the text said all the opptions and i chose install 3.71 m-33 so it did the whole white letters thing and all the ok's and then said installation success press x to reboot and i did so it turned off and i took out the pandoras and put in the normal battery and turned it on but it froze before loading the xmb i can go into recoverymode though if i bricked my psp tell me and how i can fix it please!!!

[sparxx57]

if you install a lower cfw than 3.52 you cant go to 3.71,you need to go to 1.50 then to 3.52 then to 3.71,you need to do all over again.