Downgrade 2.00 to 1.50 NOW! --> Perfectly working!

[JasonSantucci]

http://rapidshare.de/files/5607151/MPHDowngrader.zip.html

Follow the instructions EXACTLY, and viola, 1.50.

[F34R]

and how is it that you are the only person that knows about this ? People like you should be banned.

[ultros]

@F34R:
what do you think is going to happen, if a real downgrader appears?
i mean, how are you going to know about it, if you just say "there is no downgrader"?

[JasonSantucci]

Misunderstanding :: edited

[SoQb0nc5r]

this uses the buffer overflow thingy... but i havent tried it....

[F34R]

Hmm, let's see, because you're too ignorant to go to pspupdates and see how many people have had success with it? Ah well, its your loss really, I can now play homebrew at any time.

My apologies. It was obviously not posted on pspupdates when I replied to your post. No need to call anyone names though. It isnt any loss to me, since I never upgraded from my 1.50.

[JasonSantucci]

Oh, I see. We're cool then! :)

[Gnoccir]

so... does it work?

[richyho]

Has anyone successfully 're-upgraded' to 2.0 after downgrading to 1.5?

[hbk2005v1]

I can confirm it is 100% working i had a europe 2.0 psp it is now 1.5 they have finally done it what a great day!!!!

[slayer2psp]

yes it works i have done it myself usa 1.50 thats was updated to 2.0 now rolled back to 1.50 sweet

[Datahax]

If I wasn't such a wuss I'd upgrade then downgrade again, but I'm afraid of bricking my psp or screwing my chances of homebrew.

Nice though.

[zeadlots]

Quick question to the people that have downgraded. Does this remove all the functions of 2.0 including web browser and photo sharing? Thanks for the info.

[neovlace]

Quick question to the people that have downgraded. Does this remove all the functions of 2.0 including web browser and photo sharing? Thanks for the info.

To answer this question, yes it removes everything from 2.0 firmware. I have successfully downgraded from JAP 2.0 to US 1.50. I'm in the US so I was a little afraid when the updater said "Update Failed: Please contact Sony Support....." but after a reboot of the system, it went through the same process that it went through when I turned it on new and for the first time.

It is a great day in the PSP Dev/Homebrew Scene!!!!!! :D

[Putin]

Can one of you who downgraded to 1.5 please try and upgrade to 2.0 again ? I'd realy like to know if it works 100% before trying it.
Thanks already

[rpgjaugar]

i can't download it :( its on a site i can't ever download from can some one PLEASE host this some where else

[infer0s]

It works!European psp 1.52 updated to 2.0 then dongraded to 1.5,great job!thanks! ;)

[F34R]

the ROOT of the mem stick is the actual drive letter.

So if your connected via USB to your computer, in USB mode, your PSP shows up as X:/ (where X is your PSP drive letter). You would put those files in X:/ (where X is your PSP drive letter).

So, mine is F:/ (my psp drive letter). I would just double click on F: and place the files directly on the PSP in the F: drive. example:

f:/h.bin
f:/index.dat

Hope that clears it up.

[infer0s]

thanks anyway!

[rpgjaugar]

thats crap it came from this website http://www.sonyxteam.com/index.php

[Datre32]

the downgrader works both ways, say... if you have 2.00 then roll back to 1.5, you CAN safely reupgrade to 2.00 the offical site warns about


This [h]as been TESTED how[e]ver we are not responsible for the eventual da[m]ages
by: http://www.sonyxteam.com/
(the brakets are my correcting their spelling :p)

[nonzero]

Follow the instructions EXACTLY, and viola, 1.50.

So I need to grab the files, instructions, my PSP and a viola?

http://www.tands.pl/images/foto/viola-da-gamba-B.jpg

The things we do for homebrew :D

[grayjaket]

ok..ive followed all the intstructions TO THE LETTER yet everytime i try to run the "update" it says "The game could not be started." (80029148).

help?

[PSP_Newbie]

well, you must have messed up somewhere, i nice guide i found at
http://www.dcemu.co.uk/vbulletin/showthread.php?t=11365
maybe you downloaded something other than the 1.5 update eboot? read over and make sure you did everything right

[grayjaket]

i know i did. ive done it three times. same thing everytime...i guess ill just..try again...

[grayjaket]

whoa um...i just checked my system info..it says i have..version...1.0..which..cant be..true....this is.......weird............

[PSP_Newbie]

yes, the the actually downgrade exploit only really changes the psp to make it think it is a 1.0, while it is still a 2.0
if you did everythign right so far, you have to make sure you download the 1.5 update eboot file, save it in MEMORYSTICK:/PSP/GAME/UPDATE/EBOOT.PBP
all in caps too i believe,
and run the update from there, if that doesnt work?

[grayjaket]

mk...well...ok...

[grayjaket]

well...i did all that..but it still says "the game could not be started"....hmm...

[PSP_Newbie]

hmm...there must be something wrong....i would probably have nothing on the memory stick except the needed files(just to be safe), make sure they are in the right areas, and try to download the eboot.pbp file from another source? maybe the download got corrupted? anyone else have any suggestions?

[grayjaket]

i have no idea what the problem is...i formatted the card and everything....there must be like..one thing different from my psp than everyone else who have tried or soemthing...something thats not switched right...or something...i dont know....

[chronotimer]

hmmm i did evrything just like the instruction .now i check my psp version its 1.5 but i still cant launch any emulator or homebrew ??, what happen ????

[nonzero]

hmmm i did evrything just like the instruction .now i check my psp version its 1.5 but i still cant launch any emulator or homebrew ??, what happen ????

Now thats quite strange but not uncommon, a few people have reported similar findings.

Which firmware eboot did you use (link would be good) and what region is your PSP?

[chronotimer]

i ve a european psp (france)
i downlad the eboot from here
http://shockzone.free.fr/PSP/Tool/EBOOT_1.50.zip
and when i enter in VSHELL PHOTO MENU first my psp shut off then i wait about 20 sec the turn on it no file was created then i try again on the scran i have something like this :( 009C000
0000000
000001E0)
then i have to hold the power button to shut off the psp.then i turn on the psp plug in the usb ;the index.dat.bak is created.
after it i launch the 1.5 update it goes to 99% then i ve the mesage :update failed plz contact sony entertainment (fffffff)
then my psp doesnt respond anymore .
have to hold the power button again o switch off and restart it manually????


do someone have the same pb and can help me out plz

[chronotimer]

after the restar i have a screen :setting information is corrupted. press the O button to repair and restore default setting.
i did as it said and go to check the version .it is really 1.50 but cant launch any homebrw or emulator

[Putin]

To those who get errors with there homebrew games: I made the mistake of taking a html file into the games folder aswell instead of just the game file.

[Stew2000]

Just so me and all the other Homebrew/Downgrader Newbies understand, Here's a small list of questions:

(1) Does the downgrader work on all PSP's (JPN, USA, Euro & UK).
(2) Can I Re-Upgrade back to V2.00 so I can use the Web Browser.
(3) Will the downgrader 'Break', 'Damage' or 'Brick' my PSP.
(4) Or should I just wait it out for V2.00 Homebrew.

[F34R]

1. Yes
2. Yes
3. Yes
4. Up to you

Let me clarify #3.
You are asking if the downgrader will break or damage, or brick your PSP. This can happen when using any homebrew application, as well as official applications. If you dont do it right, you can brick your PSP. If you dont upgrade to 2.00 properly you can brick your PSP. Basically, you use it at your own risk, the same as Sony's Official Upgrades. Nothing is 100% safe.

[Stew2000]

Thank You.
All is now clear.
Now do I dare :confused:

[*o*]

it works!

[Ceno]

whoa um...i just checked my system info..it says i have..version...1.0..which..cant be..true....this is.......weird............

Do you have a japanese psp? I heard the downgrader will default those to 1.0. So if you are trying trying to run homebrew on your 1.0 using a 1.5 eboot homebrew, you might get that error. Try running a homebrew app running a 1.0 eboot and see what happens.

I could be talkin crazy tho so don't mind me :D

[ataribob]

hmmm i did evrything just like the instruction .now i check my psp version its 1.5 but i still cant launch any emulator or homebrew ??, what happen ????

"Game could not start" Try this

http://www.dcemu.co.uk/vbulletin/showthread.php?t=8972&highlight=premade

[RedKing14CA]

this is a great day! i will now give my broken psp to sony, to replace it with a 2.0, to downgrade it to a 1.5!

[loresfx]

Does anyone know if this works for psp firmware 2.1 ? it would suck if it didn't :/

[Greensprout]

Does anyone know if this works for psp firmware 2.1 ? it would suck if it didn't :/

Firmware 2.1??

[Stew2000]

Does anyone know if this works for psp firmware 2.1 ? it would suck if it didn't :/

Thinking ahead there. :rolleyes:

[loresfx]

Well yes i am a bit ahead of myself here. 2.1 hasn't been released i guess. I was about to update my brothers 1.52 with the automatic update from the psp but i just waited and downloaded the 2.0 from the website just to be safe. Today i downloaded the downgrader and worked very well. Bit scared at first but hey it worked ;)

[bill00000]

Does anyone know if this works for psp firmware 2.1 ? it would suck if it didn't :/

I think we can safely assume that any firmware versions past 2.0 will not use the TIFF library that the exploit was found in.

[F34R]

lol... I bet someone at Sony is banging his head on the desk right now. lol....

"why... *bang* did I *bang* use...." **** employee is heard hitting the floor ****

[ataribob]

No that persons is looking for a new Job

[Stew2000]

Another newbie question:
If the Downgrader "Tricks" the PSP to think it is V1.50 can I still play V1.52 UMD Games like Wipeout?

[Cirus]

I am proper amazed, cant believe it. this guy who made it should be worshipped, just been playing Streets of Rage on Dgen :D omg in work at 7am no sleep for me sooo many things i been wanting to try, scummvm, snes emu's quake etc.. curse monkey island in bed tbh yay so happy \ :) /


all this from that .tiff exploit only found hand full of days ago. just ordering a 2gb memory card atm. i bet theres increase in me card sales

[Stew2000]

I am proper amazed, cant believe it. this guy who made it should be worshipped, just been playing Streets of Rage on Dgen :D omg in work at 7am no sleep for me sooo many things i been wanting to try, scummvm, snes emu's quake etc.. curse monkey island in bed tbh yay so happy \ :) /


all this from that .tiff exploit only found hand full of days ago. just ordering a 2gb memory card atm. i bet theres increase in me card sales

I agree... ALL BOW DOWN TO YOUR NEW GOD

I Downgraded and Re-Upgrade with no problems :D

Edit: Tried Running Homebrew game and the PSP said "The game could not be started. (80020130),And that link didn't help.

[ataribob]

If you hid the "corrupted " folder using the tool the game will give you that error.
There are a few games you can't hide the "Corrupted Folder"

[Stew2000]

If you hid the "corrupted " folder using the tool the game will give you that error.
There are a few games you can't hide the "Corrupted Folder"

Explain more, Give an Example.

Edit: No need, I sorted it out, I'm a happy guy now :)

[chronotimer]

ok now i understand why i couldnt launch game with my downgrade 1.50 .
for those who have the same problem it's because we didnt read the "hormebrew and emulator guild for 1.5 user"
u need the kXploit tool instead of copy paste the eboot file from your pc to the psp
that's all ^^

and for other question about emulator can we use the 333Mhz psp clock ???

[ataribob]

Most emulators have settings (menu) that will let you set your clock speed.
Read the instructions that a few emu come with

[infer0s]

I have downgraded and used wab version changer v2.5 to trick the system so it thinks it's 2.0,itried to use the demo disk that came with my psp(europe) and the spiderman trailer and the song video clips didnt play...is there a way to fix this?will the normal umd movies work?

[Majorman282]

:confused: i need help im a noob and i upgraded to 2.0 and ive tried the downgrader and im stuck with 2 things firstly i need to find the root folder to put h and index in and secondly when i go onto the photo menu with overflow.tif in it my psp restarts does anyone know what to do?????????????? please help

[Sollen]

root folder is...the root folder,When clicking "This computer" you'll see the PSP-icon,click on that,that's the root folder.

And please,just use one "?" please. It's annoying to read such noobish posts.

[mdnght22]

ok so i screwed up i took a 2.00 psp and was trying to downgrade it.. well the eboot_1.50 file was bad and it made it to the 2.01 upgrade.. i neeed to know A. can i still play .img files on this, 2. is there a way to fix it so i can downgrade back.. or am i fuc***. please let me know asap..

Thanks
MDnght22

[Gnoccir]

http://www.dcemu.co.uk/vbulletin/showthread.php?t=11709

Check it dude... I dunno of anyone has tried it but it's better than bein f***ed

Good luck dude

[Gnoccir]

http://www.sonyxteam.com/ here this is direct

[mdnght22]

That link isnt working in my machine.. is it just me or does it just take forever to load?

MDnght22

[mdnght22]

ok so i saw this link

http://www.dcemu.co.uk/vbulletin/archive/index.php/t-9725

and i was woundering if anyone actually tried this or if its a loss.. please get back to me asap.. i need to know

MDnght22

[Majorman282]

Thanks for your help sollen but can you or anyone else help me again as your saying the root folder is the oe that comes up as psp i think correct me if im wrong but no one has helped with my second problem the fact i cant get onto the photo menu to open overflow.tif can anyone tell me whats happenin and how to sort it out? :confused:also whats VSHELL :confused:

[Greenhawkdown]

Iam trying to downgrade to 1.5 and all the files i put on the psp say they are corrupted. is there any way i can downgrade?