Having several problems after downgrading to 1.50

[ExcruciationX]

You must put both updates in the "oeupdater" folder as "340.pbp" and "150.pbp". "150.pbp" is the 1.50 update, and "340.pbp" is the 3.40 update.

[Chameleon]

No, he didn't put the updates in the oeudmaker folder.

I said he didnt generate the data.dxar which refers to not putting the updates in the oeumaker folder to generate the data.dxar

[xg917]

yea it shouldnt matter if you use mac or windows. its the same process to install stuff.. personally i use mac for everything.

[Hdlsa]

Okay, I found the part I skipped in the 3.40 OE-A instructions. I guess now I need 150.PBP and 340.PBP, so can someone point me in the direction to get those?

EDIT: I got 150.PBP, but I can't find 340.PBP. Is it just the EBOOT file from http://dl.qj.net/Firmwares/pg/12/fid/13553/catid/163

EDIT: assuming it is the file from above, I followed the instructions but now, when I try to execute the update, I get the 80020001 error.

[Chameleon]

http://www.psp-hacks.com/file/1130

[penileartery]

if you can mount it on a mac, but no pc, then u should try uninstalling the driver for your psp in the device manager, then plug it in again, and it should read it! because its a "new" device

try that and tell me if it works