My psp system's software version is 5.51

I know ChickHENR2 will work on Ver 5.03 but will it work on ver. 5.51? If not what can i do to downgrade my system software to 5.03?

When i go to system settings then to system information, it says System Software Ver. 5.51 but when i go to the XMB icon then go down into my memory stick, it says psp update version 5.03. Is that normal?

you can't go back to 5.03 if you have a later fw. the reason you see the 5.03 update, is because you have it saved to your memory stick.

Ah ok. u think i should stop updating my psp just in case they come up with a chickhen for ver. 5.51?

they just found an exploit in 5.5, which was patched in 5.51. you should have never updated...

I wish ive known bout chickhen being only for ver 5.03 sooner, im still new 2 all this hack stuff. Well whats done is done.