For those of you with U.P. modchips, Djhg2000 over at the QJ forums has come up with a couple different ways to enable Wi-Fi on the Epsilon BIOS. One way is using his Epsilon BIOS Wi-Fi Editor, which includes instuctions on how to use it. The other way is a bit more complicated. Check out his directions below or download his Epsilon BIOS Wi-Fi Editor from my homebrew software library.
Download HERE 1. Start your 1.50 PSP
2. Add you WiFi connection in the XMB (note that all connections will be copied)
3. Load up FA
4. Press L to sycle the command menu and highlight "Disk"
5. Press R to execute command
6. Highlight "BIOS 1" and press O
7. Highlight "Resistry" and press O
8. Scroll down until "system.ireg" is highlighted
9. Press [_] twice to highlight "system.ireg" and "system.dreg"
10. Make sure it says "ms0:/" inside the upper right field
* If it isn't, press right and then go to "Disk" and execute, and then press left
11. Cycle the command menu until "Copy" is highlighted
12. Press R to execute
13. Wait for the copy to finish and then shut it down
14. Insert the MS Duo into your PSP with Epsilon BIOS
15. Load up FA
16. Press right to choose target folder
17. Cycle the command menu to "Disk" and execute
18. Note that the menu appears to the left this time
19. Highlight "BIOS 1" and press O
20. Highlight "Registry" and press O
21. Now switch back to the source folder by pressing left
22. Scroll down to "system.ireg" and press [_] twice to highlight the system files
23. Cycle the command menu to "Copy" and execute
24. Wait for the copy to finish and then reboot
25. Test your connection in for example PVNC
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