I did not write this guide to downgrading as I have not downgraded because I am happy with 2.6. This guide was written
by RavenLife.
Installing the DownGrader (Downdater) First of all if you have a PSP with the TA-082 motherboard
DO NOT attempt to downgrade, there is a VERY strong chance you will BRICK your PSP Now…
download the downgrader
here -
http://blindraven.net/modules.php?name=Downloads&op=getit&lid=46unpack the file – password = I_Use_It_At_My_Own_Risk
now open the file – you should see 3 folders,
1.5 HELPER, DOWNDATER FINAL AUTO EBOOT and SRC – you should also see a readme –
YOU SHOULD READ THIS Now
copy DOWNDATER FINAL AUTO EBOOT folder to the PSP/GAME folder on your PSP.
Now you will Need the DOWNDATER folder
– you can get this from numerous sources – but please remember that it is illegal
I CANNOT HELP YOU WITH
THIS Once you get the DOWNDATER folder it should have two folders (DUMP + PRX) and two files (nputfl.bin + outputfl.bin)
in it
You need to place the DOWNDATER folder on the root of your PSP
i.e (using x as drive letter)
x://DOWNDATER
that’s it for that part – now PLUG YOUR PSP INTO YOUR
POWER SUPPLY
and load up GTA
select to load a gamesave (if eloader doesn’t auto boot)
and select eloader.
Now
– if you have never used eloader before you should be still able to figure it out
Select DOWNDATER FINAL AUTO EBOOT
and click X
Now wait
do not touch anything Your PSP will go black and your memory stick light will
flash like mad – this is normal.
Once it has finished (usually about 2-3 minutes)
Your PSP will reboot
And
you will see a blue screen
Just hit O
And continue on to set up your PSP’s settings
if all went well,
you now have a 1.5 PSP Sorry if you bricked it