http://forums.qj.net/f-psp-hacks-9/t-tutorial-280-ta-079-086-psp-to-303-oe-a-oe-a2-88188.htmlПодробная инструкция по прошивке до последней кастомизированной 3.03 OE-A' (А штрих)
Ссылки here - читайте на оригинальном сайте
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This was made possible thanks to Dark_AleX, Mathieulh, Harleyg, 0okm, Team C+D, NOPx86, Noobz.
REMEMBER, DOWNGRADE AT YOUR OWN RISK
Downgrading from 2.80-2.71 (TA-082-086 Users)
1. Download the 2.80 to 2.71 downdater from here
or here
2. Download xloader from here
3. Obtain the 2.71 dump either by searching for it (google.com ) or if you have a 1.5 psp you can obtain the dump yourself.
If you have a 1.5 psp:
Download PSARDumper here
Download FW2.71 Update EBOOT here
Download PBP Unpacker here
Open PBP Unpacker and use it to unpack the FW 2.71 Update Eboot
Copy the FW2.71 DATA.PSAR to ms0:\ (the root of your memory stick)
Put PSARDumper on your memory stick.
Run PSARDumper on your PSP.
Then "Press circle to dump encrypted without sigcheck and decrypted reboot.bin."
This will dump the 2.71 DATA.PSAR.
4. Run the auto installer for xloader.
5. Extract FW280DownDate2FW271.zip to ms0:\ and copy your obtained 2.71 dump into ms0:\F0 (Check ms0:\F0 to see if it has 286 files and total size of 18,598,267 Bytes)
6. Restore default settings on your PSP and reboot your PSP. MAKE SURE YOU HAVE THE POWER LEAD PLUGGED IN AND YOU HAVE ATLEAST 75% BATTERY LEVEL.
7. Go to The Photo menu on your xmb and enter the xLoader folder. DO NOT USE ELOADER.
8. If your PSP crashes you have to retry, but when you see a corrupted data icon you can exit.
9. Go to the Game menu and run 2.71DDforTA-079~086FW2.80PSP.
10. Press O to flash the 2.71 dump, and restart your PSP when it has finished.(when you turn your PSP on, there will be a blue screen, press O, then you have to re enter your settings.)
You now have a 2.71 psp
11. Format your memory stick to remove all the files that was used to downgrade.
Downgrading from 2.71-1.50 (TA-082-086 Users)
12. Download the TA-082 2.71 downgrader from here
13. Download HEN D from here
14. Download the official FW1.50 Update Eboot from here
15. Extract the contents of the TA-082 downgrader and HEN D anywhere thats easily accessible.
16. From the extracted HEN D folder, copy over the contents of the folder 'MS_ROOT' to the root of your memory stick.
17. From the extracted TA-082 Downgrader folder, copy over the 'UPDATE' and 'idstoragechange' folders to PSP/GAME.
18. Copy over the downloaded 1.5 update eboot into PSP/GAME/UPDATE and rename the file 'UPDATE.PBP'
19. Run HEN D by going to the photo menu on your PSP and entering the HEN D folder. (if your PSP crashes try again)
20. Go to the GAME menu on your PSP and run the 'idstoragechange'. Your power lead needs to be connected and you need atleast 75% battery.
21. When the program exits back to the xmb, under the GAME menu, run 'Update X.YX'
22. When your PSP has finished downgrading, press X to restart your PSP and you should have a 1.50. (when you turn your PSP on, there will be a blue screen, press O, then you have to re enter your settings.)
23. You should format your memory stick to get rid of the downgrader files (if you no longer have the 1.50 update eboot on your computer, copy over the eboot from your PSP before you format or just download it again)
Downgrading from 2.80-1.50 (Non TA-082-086 Users)
1. Check to see if your psp is not a TA-082,
2. Download the 2.80 to 1.50 downdater from here
or here
2. Download xloader from here
3. Obtain the 1.50 dump either by searching for it (google.com ) or if you have a 1.5 psp you can obtain the dump yourself.
If you have a 1.5 psp:
Download the ipl dumper program from here
Download downhelper and downhelper% from here
Extract the folders from the ipl dumper program into ms0:\PSP
Extract the downhelper and downhelper% folders into PSP\GAME
Run the DownHelper program on the PSP.
Reboot your PSP.
Run the IPL Dumper program.
Copy the DOWNDATER folder from the memory stick to your PSP.
Make sure there is a file called 'FW150_ipl.bin' in the PRX folder, if there isn't run the ipl dumper again.
(on 2.80 psp)
4. Extract the 2.80 Downdater files to ms0:\PSP
5. Copy over the DOWNDATER folder to the root of your memory stick
6. Run the auto installer for xloader.
7. Restore default settings on your PSP and reboot your PSP. MAKE SURE YOU HAVE THE POWER LEAD PLUGGED IN AND YOU HAVE ATLEAST 75% BATTERY LEVEL.
8. Go to The Photo menu on your xmb and enter the xLoader folder. DO NOT USE ELOADER.
9. If your PSP crashes you have to retry, but when you see a corrupted data icon you can exit.
10. Go to the Game menu and run FW280DownDate4TA-079.
11. Press O to flash the 1.50 dump.
You now have a 1.50 psp
11. Format your memory stick to remove all the files that was used to downgrade.
Installing CFW 3.03 OE-A
24. Download the FW3.03 Update Eboot from here or here
25. Download 3.03 OE from here or here
26. Extract 303OE.rar to anywhere that you can access easily.
27. Rename the 1.5 eboot to 150.pbp and rename the 3.03 eboot to 303.pbp.
28. Copy over 'oeupdmaker' and 'oeupdmaker%' to PSP/GAME.
29. Place 150.pbp and 303.pbp in PSP/GAME/oeupdmaker.
30. On your PSP go to the GAME menu and run '3.03 OE-A update maker'
31. When it's done, check to see if you have a 'DATA.PXAR' file in PSP/GAME/oeupdmaker.
32. From your extracted 303OE.rar, copy over '303oeflasher' and '303oeflasher%' to PSP/GAME.
33. Move the newly created DATA.PXAR to PSP/GAME/303oeflasher.
34. On your PSP run '3.03 OE-A Firmware install'
35. Press X to continue with the 'upgrade' or press R to exit.
36. When it has finished you should have a 3.03 OE PSP
37. Format your memory stick to clear all installation files.
Updating to CFW 3.03 OE-A' (or OE-A2)
38. Download 3.03 OE-A' from here
39. Extract RAR archive to the root of your PSP.
40. Go to the Game menu on your PSP and run 3.03 OE-A' update (Note: if you can not see the update on your PSP game menu, try moving the eboot.pbp from the folder 'GAME150' to 'GAME')
You now have a 3.03 OE-A' PSP
If you have any questions, please feel free to ask them.
