downgrader

can anyone please help me work this. i followed the instructions here http://psp.dashhacks.com/2011/05/23/psp-6-38-downgrader-released/ but when i try to run it it says "the data is corrupted IDXFFFFFFFF". can anyone tell me whats going on or give tell me how to do it perhaps with your own...

i have a 6.60 ofw installed, i will downgrade it to 6.20 by using the downgrader available. I run the downgrader, and pressed X to start the process, the screen showed "OK, good for launch" ... but the psp will turn black and hang, then shut off. :( I cannot run the downgrader. Please help...

Hi, I just downloaded and used the awesome Chronoswitch downgrader to get my 09g to 6.20. I then installed PRO B9, perma-patched it, and now PSN won't work. It says "connection error occured 20000006". Is that the fault of The downgrader or PRO? Please let me know. Thanks! :mrgreen:

Hi I basically copied the 6.3x downgrader to PSP/GAME/ copied the 6.20 PSP go firmware into PSP/GAME/UPDATE as EBOOT.PBP Basically everytime i try to run the downgrader it enters and then 5s later it says error on the sce updater Im running this from a m2 512mb/4gb sandisk (original) memory...