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1.50 to 1.00 Easy Downgrader Released!

Posted Jul 8, 2006 at 5:38AM EST by QJ Staff

Listed in: Homebrew Applications Tags: Downdater, downgrade, downgrader, Easy Downgrader, psp homebrews

Easy downgrader 1.5 --> 1.0

Xtrusion from our forums has released another Easy Downgrader for those who want to downgrade a 1.5 PSP to version 1.0, the PSPs original System firmware. Just like Easy Downgrader for 2.5/2.6, this Easy Downgrader uses Dark_Alex Yoshihiro and Mathieulh's original downdater, this time for 1.5 --> 1.0 and adds a nice GUI, sound instructions and complete installation (apart from the dumped firmware files) needed to downgrade your PSP from firmware 1.5 to 1.0.

A voice will explain to you how to do things along with text, and the automatic installer will install all the files required to downgrade for even the biggest PSP homebrew newbies. You will need someone with an original 1.0 PSP in order to get this to work.

Instructions

Find someone with a 1.0 PSP and get them to install the downhelper program from the downdater download.
Copy the downhelper100 folder to /PSP/GAME/ and start the program.
It will dump your flash and your ipl to the memory stick. After finished, the program will exit.
Send the folder created at the root of your memory stick called "DOWNDATER" to someone with 1.50 to allow them to downgrade using the Easy downgrader app.

Remember that PSP firmware version 1.00 still hasn't got any special applications or uses, so there isn't any reason to leave 1.50 (unless you're a developer) at the moment. You will receive this warning when you run the Easy Downgrader.

Download: [1.50 to 1.00 Easy Downgrader]

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the point of it is so developers can have the oppurtunity to work on 1.00 firmware which has NO SECURITY to bypass. This means they can freely explore 1.00's workings, nooks, and krannies to their hearts content. This also opens up the possibilty of custom firmware for the psp without the need of the undiluated platimum hardware mod. Us regular joes that appreciate homebrew but either have no programming skills and/or time, should stick with 1.5 for the sake that is the most supported firmware for homebrew at this time.

# yea i agree with #7 — emmortal 2006-07-08 07:50

even though 1.5 is the best firmware right now because 1.0 can run eboots without any hacks really it can quickly become the best firmware especially with dev hook on it

# 1.00 Downdater Files — Guest 2006-07-08 07:53

Does anyone know where I can find the DownDater files to downgrade my 1.50 to a 1.00?

I have 2 PSPs with 1.50 FW and want to downgrade one to a 1.00, since 1.00 has some advantages (not many)

# 1.0 — marcind 2006-07-08 07:54

2.01-2.6-1.5-2.0-1.5-1.0 and now back to pure 1.5:)

# A CUSTOM FIRMWARE IDEA — Guest 2006-07-08 07:56

hey some of you will know about the EPSILON BIOS which lets you play full homebrew and ISO loaders on firmware 2.71

now that we have ver 1.00 could it be posible to use this bios on our psps by just flashing it?

if you don't know what i'm talking about read here http://pspupdates.qj.net/Epsilon-BIOS-Undiluted-Platinum-Homebrew-on-2-71/pg/49/aid/56841

# Custom Firmware :) — Guest 2006-07-08 07:59

A custom firmware on a 1.00 psp sounds very nice indeed. Its the only firmware which can truly run unsigned code, not of great use at the moment because it hasnt been taken apart properly yet, but that'll change :)

# Question — yoyomacy 2006-07-08 08:14

this maybe a stupid question, but can 1.5 homebrews work on 1.0?

# what advantages? — Guest 2006-07-08 08:16

>>I have 2 PSPs with 1.50 FW and want to downgrade one to a 1.00, since 1.00 has some advantages

And what _exactly_ are these "advantages" ?

There's nothing you can do on 1.00 that you can't do on 1.50, unless you're a dev and want to play with the exploit to allow running unsigned eboot's...

# @ 25 — Guest 2006-07-08 08:22

>>@ 25

Advantages --

Faster

No Corrupted Icons

Disadvantages--

Japanese

Not 100% Compatible

But I want a 1.00 and can't find the downhelper files

# STUPID — Guest 2006-07-08 08:26

This is really stupid becuase it is really hard to find someone who has a 1.0 psp so how can most people do it if you cant find one psp with 1.0 files on it!

# Question — Guest 2006-07-08 08:28

How do you know if your psp is a pure 1.5, one of the original. Thanks

# . — FLai 2006-07-08 08:28

I don't get why you would want to go to 1.0. 1.5 IS better. Loads of homebrew apps and games don't work with 1.0 including Devhook. It sucks so don't do it. You will regret it and you will eventually upgrade again.

# reall no need for this — Guest 2006-07-08 08:29

i thought the first release of the DG was easy...

# ¬_¬ — Guest 2006-07-08 08:29

Someone needs to IP ban this moron...

# 1.00 Firmware — Guest 2006-07-08 08:31

I want 1.00 Firmware since I have two 1.50 Firmware PSPs and a 2.60 Firmware... So, Devhook...UMD Emuhater and Cash loader don't mean anything to me on a 1.00 PSP.

So, if anyone can help me find the 1.00 Downhelper files... Please help me...

# another tagger — Guest 2006-07-08 08:35

i got the 1.0 file just email me on bearsfreak1@yahoo.com or even better if u have a myspace account send me a message at www.myspace.com/bearsfreak1 (please use internet explorer if ur goin in to my myspace account it looks wierd on firefox)

# Hm... — -P3Z- 2006-07-08 08:38

I see this as nice work...Then agian there is no reason to downgrade to 1.0 like alot of you said more Homebrew works on 1.5 and sooner or later they might port somethings over to 1.0...but I see it as a platfrom for Dev's to do more with less hassel and HOPEFULLY their would be a Custom Firmware somewhere down the line..

# 1.0 homebrews!!! — yoyomacy 2006-07-08 08:52

this maybe a stupid question, but can 1.5 homebrews work on 1.0?

# AHH — flammingcowz 2006-07-08 08:56

QUIT *****IN FLAMIN U *****S

# WOW — Guest 2006-07-08 08:58

The trolls are out today.

# Stop repeating everything — Guest 2006-07-08 09:00

You people who keep posting, asking why would anyone want to downgrade to 1.0 please shut up!!

Its been said over and over again, that the point is so developers can produce a custom firmware. If you cannot invision what the posabilitys to homebrew would be with that in place, then just shut up and wait and see.............

# hmmm — mnky 2006-07-08 09:04

1.0 is a firly bad f/w, its slow...

Also stop the mofo-in' spamming!

# 2.7 — ffking 2006-07-08 09:21

when r u guys going to make a easy 2.7 downgrader

# kewl — Guest 2006-07-08 09:23

even tho i wont be using this, i used the 2.6 to 1.5 and loved the GUI of the ez downgraders. this is the best thing ever for the psp

# why would I want 1.00FW? — InTheZone 2006-07-08 09:58

I can play any game on my 1.5 psp, I can play any snes/nes game I want. Eventually I'll be able to play ps1/n64. Again, what's the point of having a 1.00FW psp?

Just a pointless feature to have, seriously.

# inthe zone — Guest 2006-07-08 10:04

do u have 1.5 downdater folder with files

# nice nice nice!!! — anonymous stranger 2006-07-08 10:14

lol having formatted my computer not long after i downgraded from 2.0, i lost all 1.0/2.0 eboots, never bothered to try and find them again since i have 1.5 now, so yeah... its going to take me a while do dig all my fav app's 1.0/2.0 verisons.... but haha sony is sure pissed about us upgrading and downgrading AT OUR OWN WILL now... not going to be long before 2.7 is completely cracked lol! its already decrypted... omg the psp homebrew scene gets better and better dont it?

# omg.... — anonymous stranger 2006-07-08 10:43

grow up you spammers, I dont even get WTF your trying to tell me, that you need desperate attention? anyways, someone aksed about 1.5 homebrew can run on 1.0, well I't can't.

1.0 homebrew are true homebrews, the 1.5 version is the modded 2 file so it works on 1.5, 1.5 homebrew have 2 eboots, which is the split version of the 1.0, i think it still works on 1.0 theoratically, but its just unneseccary to split the eboots..

hope that helps and nice work with da downgrader, but with this youll have the x and o flipped rite? how are we going to get it back? do we have to wait for pspset to work on 1.0 so we can flip it back to the us version? just a thought

# >>>>13 — Cheater912 2006-07-08 11:41

13:

Everybody knows about the mod chip and it is a rip off....

It's for noobs who don't want to brick their PSP's....

# cool — Guest 2006-07-08 11:47

i want to downgrade but i dont think many things work for it like devhook or themepsp so im waiting till something good and spectacular comes out

# 55# — Guest 2006-07-08 11:58

i'm not on about the mod chip i'm on zbout the custom firmware what is flashed to it could it be released in a update eboot for 1.00 fw

# FULL VERSION — Guest 2006-07-08 12:07

In the website of XTRUSION you have the LITE version an the FULL version of the 2 Downdaters:

- 2.50/2.60 to 1.50

- 1.50 to 1.00

www.psp.xtrusion.es

The site is in SPANISH and ENGLISH

# hmm — Guest 2006-07-08 12:11

Where the hell am i gonna' find someone with a 1.00 fw psp? lmao

# downdater — Guest 2006-07-08 12:57

ok for all u noobz and vets on the homebrew scene...a downdater file is the same as a FIRMWARE DUMP!!! you can pretty much google it and you will get the link to the file ....

and on topic,

1.00 fw is a pretty nice firmware for developers, but to us,the gamers/homebrewers,..it is useless!

~laterz~

# no psp with 1.0 firmwrae — Guest 2006-07-08 13:00

isn't there a way to downgrade without a 1.0 psp?

# i'll do it — logicbomb.de 2006-07-08 13:21

"when r u guys going to make a easy 2.7 downgrader"

paypal me $5,000 in advance to hijosdeputa@msn .com and I'll make youa 2.7 downgrader.

# 63# — Guest 2006-07-08 13:31

lol what would you do if he did now

# >> no.62 — FLai 2006-07-08 13:42

Good Man!

# why downgared — Guest 2006-07-08 13:51

1.5 and 1.0 are almost the same

# 66# — Guest 2006-07-08 14:00

custom firmware my firend

its much better to downgrade now then rush to downgrade when customs firmware is released and end up bricking your psp cause you rushed the downgrade to get it

*deap breath*

# download from psp-hacks — Guest 2006-07-08 14:37

Download this from PSP-Hacks instead, it contains the 1.0 firmware files so you dont have to find them elsewhere

# LOL — Guest 2006-07-08 15:01

*quote"By law you only can download the Light version. But no one is checking. So...Ill just leave you."quote* lol read it in the download section http://www.psp.xtrusion.es/en/

# factory 1.0? — Guest 2006-07-08 15:02

to use this do you need a factory 1.0 psp? or can i do it with my factory 1.5 psp?

# HUH?? — Guest 2006-07-08 15:17

what the difference between 1.5 and 1.0????

# i need help serious help — junwang0808 2006-07-08 15:30

where is the forum and will there be a down grade for 2.71?

# um — Guest 2006-07-08 15:32

is there a difference between a downdater and a downgrader?

# lol n00bs — Guest 2006-07-08 18:08

damn, so manyo noobs here. 'wats the difference between 1.0 an 1.5?' wats 1.0' blah blah blah. ok

1. 1.0(like 2.0) only needs 1 eboot file to run homebrew, not 2, so u dont have 'corrupted data' icons

2. 1.0 was only on Japanese PSPs, so there were a few bug not yet worked out that were fixed in 1.5

3. 1.0 had virtually no security so it is easily hacked and modded firmware is easily made

im perfectly content with my 1.5 psp. until they come out with a modded FW that has all the features of 2.7 or sumthin like that, im not downgrading. theres my 2 cents, go buy a lollipop

# Gamer — Guest 2006-07-08 21:03

Can't they replace the current OSS of psp with something else? Something better, with browser, with file assistant and everything in it? WOuld be a lot better..

# 2.70 to 2.60 — gibby07 2006-07-09 00:02

if any1 wants to try my 2.70 downgrader please reply

# 76# Gibby07 — Guest 2006-07-09 00:29

gibby07 your an ***** you said last time you had a 2.70 to 1.5 downgrader and admitted you lyed

why don't you just f*ck off you attention seaking moron

# wtf!? — darknight3050 2006-07-09 02:44

omg, u can already access kernal mode and everything, its almost useless with a 1.0 compared to a 1.5, cuz we got homebrew and all that fully working with a 1.5 (with the Kxploit),but please, worry about the people stuck with 2.70, or 2.71. pleeeze, i want portable vnc, pspradio, n64 emu, and all that, im beggging, u, lol

# woot yess — Guest 2006-07-09 04:14

it worked on mine if you need any help my aim is ( bannedrail ) and im me if you need any help on this iv got two psp's .... one with 1.5 and one with 1.0 and the advantage of having a 1.0 is that you can run bochs but with 1.5 bochs are incabatable. if you dont know what bochs are used for then they are used for booting up operating systems such as windows and linux. iv got both right now on my 2giga byte memory stick its niceeeeeeeeee. woot ty man. i just down graded my 2 2.6s to a 1.5 and a 1.0 pwnage baby!!! woot

# Idiot — Guest 2006-07-09 12:37

Go buy a 1.5 psp then or a psp with any firmware before 2.7 then you dip***** darkknight.

# wank — Guest 2006-07-09 22:12

What a load of tossers... especially the guy who says "if any1 wants to try my 2.70 downgrader please reply" you carnt run homebrew code on 2.70 and 2.71 so how the heck do you recon you can run a downgrader......

# I can Confirm that it works — Guest 2006-07-11 04:37

The Installation file at www.psp.xtrusion.es Works succesfuly and I know have a 1.0 PSP.

I have upgraded and downgraded my psp several times with several different firmwares, and this has still worked without incident.

Be aware however, that split 1.5 eboots DO NOT, work with this firmware (1.0), as I have just tested DGEN.

Perhaps a developer could relase a 1.5 recompiler to combine the 1.5 eboots back into one file.

As well, The comments on this Firmware being slow, are SEMI true. The memory stick access is about .5 of a second slow.

This doesn't effect USB transfer speed, it's merely cosmetic.

For all you people who are worried that your psp didn't come stock with 1.0 DON'T worry, it's not an issue.

Good Luck,

SPikey!xx

# Guest 2006-09-02 22:07

is there any way of put the buttons back the way they are ameant to be for example x is really o

thanks

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