from pspupdates.qj.net
Dudash discovered a simple work around solution to supposedly grant you access to the PS Store, even without a CFW 5.01 M33 from DAX. Here’s how:
1. Run the 5.00 M33 installer and stop when it prompts you to press X to start SCE Updater, R to exit
2. Take out the memory stick
3. Download the official 5.01 update data
4. Rename the 5.01 update (UPDATE.PBP) to 500.pbp
5. Paste it to “X:PSPGAMEUPDATE” and overwrite the original (real) 500.pbp
6. Pop the MS card back in and continue
This Will Give You 5.01m33
From The Beginning Of The SCE Updater, It Will Say
PSP System Software
Version 5.01
Start
And Now You Can Enter The Playstation Store Without Getting An Error!
Likewise, this same procedure was also discovered by Erland in our QJ.NET forums. You can check the Visit link below to see his set of instructions, but ultimately, they’re the same.
Please be advised that this hasn’t been tested to be absolutely 100% working for all cases - especially since FW 5.01 also integrates some fixes with certain Memory Stick
models. This procedure might not work for certain cards. Given that, we advise caution in trying this out for yourself, just in case something happens.