Help trying to downgrade 2.71 to 1.5 - 80020001 error

[kurgan666]

I'd be grateful for any advice.
I'm aiming to install 'dark alex 2.71 SE-B'.
I started today with a PSP1003 firmware 2.6 (shipped with frimware 2.01, purchased Nov 05).

All files have been downloaded from qj.net
-Firstly I updated my psp to 2.71 - no prpblems.
-I downloaded and installed Dark Alex's homebrew enabler (henc), it seemed to work fine - screen went from blue to green. The 'cubes test' program runs fine.
-I installed Dark Alex's generic downgrader and downloaded the 1.5 eboot file, renamed it to UPDATE.PBP and copied that across to the /psp/game/update as directed.
-I see 'psp formware update x.yz' and i run it
-PSP reboots but I get message 'the game cannot be started 80020001'

I have since tried formatting the memory stick and resetting to factory defaults several times. I have also tried using the 'Blackskull' repack of henc and generic downgrader but get the same result.

thanks for any help,

[splodger15]

do you have a TA-082 motherboard check here

http://www.divineo.de/divineo_support/products/psp-udpl/files/ta-082%20check.jpg

[kurgan666]

Thanks for reply.
Nope it is not a TA-082.

[belialone]

since you have a 2.71 you could also use the downgrader from xtrusion
you'll need a 1.5 flashdump made with the downhelper(or just google it)

and a fresh (inside the psp) formatted 32mb memstick
100% battery charge
the power supply plugged in (the whole time)
then just start the tiff exploit via photo menu
a red screen appears dont touch till its finished
the programm crashes on purpose when done
just turn it of and back on, a error appears dont panic its ok press circle then the psp reboots voila 1.5 setup menu
but watch out if you have a ta-82 motherboard (search google to identify)
never go below firmware 2.5 or the psp is a brick

it worked for me i have a white 1004 psp
i went from 2.6 to 2.71 and then down to 1.5

[splodger15]

Just get the 2.71 easy downgrader full edition

[belialone]

Just get the 2.71 easy downgrader full edition

yeah ok easy downgrader is better but be sure its the full version

[kurgan666]

thanks for all the advice and help
after much effort I finally have 1.5. I tried the Easy Downgrade app a few times but it locked up. On a whim I put my 32meg stick in and tried again with the blackskull repack *success* - I don't know if the change of memory stick is a coincidence or not.

[belialone]

yep you need a fresh with the psp formatted memstick to run this
i tried it with a 1GB nothing worked
then with the fresh 32MB memstick every thing was fine
glad to see a new member of the homebrew scene:thumbup:

sony just got owned again:D

[Tetris999]

yeah have a cookie man and play some chess yay!

[mnuhaily22]

Welcome to homebrew!