Well, this is annoying. I bought a used PSP-1001 that appears to be in excellent condition - not a scratch on it. It currently has Sony OFW 3.71 installed.
I tried copying a few different CFWs to the folder /PSP/GAME/UPDATE, but when I try to install them, I see a message "The memory stick could not be read" (080010005).
I've tried formatting the mem stick and that makes no difference. I've tried doing a network upgrade, and the latest OFW seems to download and save to the mem stick, but again, conks out during the install process with the error message above.
A Google search tells me this could be a faulty memory stick, but I've tried copying a 500-MB video file to the mem stick, and the PSP plays it back just fine. I can also put dozens of JPEG photos on the memstick, and there's no issue there either.
Could the mem stick have some fault that lets the PSP play MP4s and JPEGs, yet won't let you install either an OFW or a CFW? I don't see how that could be...














