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1.50 to 1.0 Downgrader


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Et oui je viens de tomber la dessus, je ne vois pas encore l'interet de passer sa psp en 1.0 mais peut etre qu'a d'autres ca servira

 

1.50 to 1.0 Downgrader

Posted by greg

It’s been confirmed that the 1.50 to 1.0 downgrader released earlier today does indeed work.  

 

It has been confirmed that 100% of ‘virgin’ 1.5 PSPs downgrade to 1.0 smoothly.

 

How do we define ‘virgin’ firmware 1.5 PSPs? If you BOUGHT your PSP with the 1.5 firmware ALREADY on it, and have NEVER upgraded or downgraded since the purchase, then you have a virgin PSP.

 

Out of 5 tests on these untouched firmware 1.5 PSPs, 100% of them downgraded to 1.0 without a hitch, and with region coding removed.

 

What does this mean? Devs can NOW start making custom firmware for the PSP. The process used by the firmware flasher is using custom code to replace the NAND memory with new root files. Therefore, since we are NOT using the upgrade EBOOTs to downgrade, almost ANYTHING can be written to the firmware.

 

Team SXT, Yoshihiro, and PSP3D are currently working on finding out how to get this firmware flasher to work with all versions of the 1.5 PSP, so that we can have custom firmware for all!

 

Think about it. All the features on the new 2.6 firmware on a CUSTOMIZED firmware which is made by devs to support homebrew, yet have all the features of 2.6, and more, as we can now incorporate Flash and other codecs, like DivX into our custom firmwares.  

 

Howto:

- Put the two folders in the /GAME/ directory of you original 1.5 PSP.

- Put the .bin file in the ROOT of your memory stick.

- Run the EBOOT from your PSP.  

 

Remember - DO NOT run this if you’ve upgraded/downgraded your 1.50 PSP - you will brick it. This means, if you have upgraded from 1.50 to 2.0, then downgraded back to 1.50 and you attempt to run this downgrader, you will damage your PSP and it will forever be rendered useless.

 

THIS ONLY WORKS WITH VIRGIN 1.50 PSPs.

 

Download 1.50 to 1.0 Downgrader

 

Surtout ne pas efféctué de downgrade en 1.0 si votre PSP est deja une psp downdrader de 2.0 vers 1.5, elle doit etre d'origine en 1.5 sans aucun upgrade et downgrade, sous risque de brické votre PSP

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L'intérêt est appriori celui ci :

 

Pour ceux qui ne le savent pas, les PSP originales vendues au Japon disposent d'un firmware 1.00 qui ne nécessite pas de signature digital de Sony pour lancer des homebrews.

 

Si un downgradeur en version 1.00 est créé avec succès, ceci ouvrirait les portes à des firmwares personnalisés disposant par exemple des fonctionnalités des nouvelles versions (2.00, 2.50, 2.60) tout en laissant la possiblité d'exécuter des applications homebrews !

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franchement si on ce met tous en 1.0 sa pourrais faire avancer plus vite les homebrews , mais malhereusement le 1.5 est bien trop democratisé !

pour le downgrade 1.5 =>1.0 , c'est possible mais plus risquer !

je l'ai fait et ba sa marchais limite quand meme .......

mais peut etre que le downgrade 1.5=>1.0 ne demande aucune signature , c'est peut etre pour sa que sa a marcher ;)

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Je me retrouve avec une psp 1.00 je laisse comme ca? ou je change? et si vous savez me donné un lien valable pour pas venir dl un eboot qui prétend etre 1.50 alors que c'est du 1.00 ou autres.

 

en fait voila le titre du firmware que j'ai installé `EBOOT_1-1`.50 , donc je pense que c'est en fait le 1.00 !

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